1
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Zhou X, Liu Y, Gao Z, Min P, Liu J, Yu ZZ, Nicolosi V, Zhang HB. Biphasic GaIn Alloy Constructed Stable Percolation Network in Polymer Composites over Ultrabroad Temperature Region. Adv Mater 2024; 36:e2310849. [PMID: 38185468 DOI: 10.1002/adma.202310849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/18/2023] [Indexed: 01/09/2024]
Abstract
Flexible and adaptable polymer composites with high-performance reliability over wide temperature range are imperative for various applications. However, the distinct filler-matrix thermomechanical behaviors often cause severe structure damage and performance degradation upon large thermal shock. To address this issue, a general strategy is proposed to construct leakage-free, self-adaptive, stable percolation networks in polymer composites over wide temperature (77-473 K) with biphasic Ga35In65 alloy. The in situ micro-CT technology, for the first time, reveals the conformable phase transitions of Ga35In65 alloys in the polymer matrix that help repair the disruptive conductive networks over large temperature variations. The cryo-expanded Ga compensates the disruptive carbon networks at low temperatures, and flowable Ga and melted In at high temperatures conformably fill and repair the deboned interfaces and yielded crevices. As a proof-of-concept, this temperature-resistant composite demonstrates superb electrical conductivity and electromagnetic interference shielding properties and stability even after a large temperature shock (ΔT = 396 K). Furthermore, the superiority of the construction of temperature self-adaptive networks within the composite enables them for additive manufacturing of application-oriented components. This work offers helpful inspiration for developing high-performance polymer composites for extreme-temperature applications.
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Affiliation(s)
- Xinfeng Zhou
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yue Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zijie Gao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Peng Min
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ji Liu
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
| | - Zhong-Zhen Yu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Valeria Nicolosi
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
| | - Hao-Bin Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
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2
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Morabito F, Synnatschke K, Mehew JD, Varghese S, Sayers CJ, Folpini G, Petrozza A, Cerullo G, Tielrooij KJ, Coleman J, Nicolosi V, Gadermaier C. Long lived photogenerated charge carriers in few-layer transition metal dichalcogenides obtained from liquid phase exfoliation. Nanoscale Adv 2024; 6:1074-1083. [PMID: 38356640 PMCID: PMC10863726 DOI: 10.1039/d3na00862b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/26/2023] [Indexed: 02/16/2024]
Abstract
Semiconducting transition metal dichalcogenides are important optoelectronic materials thanks to their intense light-matter interaction and wide selection of fabrication techniques, with potential applications in light harvesting and sensing. Crucially, these applications depend on the lifetimes and recombination dynamics of photogenerated charge carriers, which have primarily been studied in monolayers obtained from labour-intensive mechanical exfoliation or costly chemical vapour deposition. On the other hand, liquid phase exfoliation presents a high throughput and cost-effective method to produce dispersions of mono- and few-layer nanosheets. This approach allows for easy scalability and enables the subsequent processing and formation of macroscopic films directly from the liquid phase. Here, we use transient absorption spectroscopy and spatiotemporally resolved pump-probe microscopy to study the charge carrier dynamics in tiled nanosheet films of MoS2 and WS2 deposited from the liquid phase using an adaptation of the Langmuir-Schaefer technique. We find an efficient photogeneration of charge carriers with lifetimes of several nanoseconds, which we ascribe to stabilisation at nanosheet edges. These findings provide scope for photocatalytic and photodetector applications, where long-lived charge carriers are crucial, and suggest design strategies for photovoltaic devices.
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Affiliation(s)
- Floriana Morabito
- Area Science Park Basovizza S.S. 14 Km 163.5 34149 Trieste Italy
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
- CNR-IOM, Consiglio Nazionale delle Ricerche Istituto Officina dei Materiali Trieste Italy
| | - Kevin Synnatschke
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Jake Dudley Mehew
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
| | - Sebin Varghese
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
| | - Charles James Sayers
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
| | - Giulia Folpini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
| | - Giulio Cerullo
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
| | - Klaas-Jan Tielrooij
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
- TU Eindhoven, Department of Applied Physics Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Jonathan Coleman
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Valeria Nicolosi
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Christoph Gadermaier
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
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3
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Konkena B, Kalapu C, Kaur H, Holzinger A, Geaney H, Nicolosi V, Scanlon MD, Coleman JN. Cobalt Oxide 2D Nanosheets Formed at a Polarized Liquid|Liquid Interface toward High-Performance Li-Ion and Na-Ion Battery Anodes. ACS Appl Mater Interfaces 2023; 15:58320-58332. [PMID: 38052006 PMCID: PMC10739576 DOI: 10.1021/acsami.3c11795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/07/2023]
Abstract
Cobalt oxide (Co3O4)-based nanostructures have the potential as low-cost materials for lithium-ion (Li-ion) and sodium-ion (Na-ion) battery anodes with a theoretical capacity of 890 mAh/g. Here, we demonstrate a novel method for the production of Co3O4 nanoplatelets. This involves the growth of flower-like cobalt oxyhydroxide (CoOOH) nanostructures at a polarized liquid|liquid interface, followed by conversion to flower-like Co3O4 via calcination. Finally, sonication is used to break up the flower-like Co3O4 nanostructures into two-dimensional (2D) nanoplatelets with lateral sizes of 20-100 nm. Nanoplatelets of Co3O4 can be easily mixed with carbon nanotubes to create nanocomposite anodes, which can be used for Li-ion and Na-ion battery anodes without any additional binder or conductive additive. The resultant electrodes display impressive low-rate capacities (at 125 mA/g) of 1108 and 1083 mAh/g, for Li-ion and Na-ion anodes, respectively, and stable cycling ability over >200 cycles. Detailed quantitative rate analysis clearly shows that Li-ion-storing anodes charge roughly five times faster than Na-ion-storing anodes.
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Affiliation(s)
- Bharathi Konkena
- School
of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin
D2 D02 K8N4, Ireland
| | - Chakrapani Kalapu
- Micro
Nano Systems Department, Tyndall National
Institute, Cork T12 R5CP, Ireland
| | - Harneet Kaur
- School
of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin
D2 D02 K8N4, Ireland
| | - Angelika Holzinger
- The
Bernal Institute and Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Hugh Geaney
- The
Bernal Institute and Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Valeria Nicolosi
- School
of Chemistry, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin
D2 D02 W9K7, Ireland
| | - Micheál D. Scanlon
- The
Bernal Institute and Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Jonathan N. Coleman
- School
of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin
D2 D02 K8N4, Ireland
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4
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Kelly AG, Sheil S, Douglas-Henry DA, Caffrey E, Gabbett C, Doolan L, Nicolosi V, Coleman JN. Transparent Conductors Printed from Grids of Highly Conductive Silver Nanosheets. ACS Appl Mater Interfaces 2023; 15:39864-39871. [PMID: 37561092 PMCID: PMC10450683 DOI: 10.1021/acsami.3c07459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
Transparent conductors (TCs) represent key components in many applications from optoelectronic devices to electromagnetic shielding. While commercial applications typically use thin films of indium tin oxide, this material is brittle and increasingly scarce, meaning higher performing and cheaper alternatives are sought after. Solution-processible metals would be ideal owing to their high conductivities and printability. However, due to their opacity to visible light, such films need to be very thin to achieve transparency, thus limiting the minimum resistance achievable. One solution is to print metallic particles in a grid structure, which has the advantages of high tunable transparency and resistance at the cost of uniformity. Here, we report silver nanosheets that have been aerosol jet printed into grids as high-performance transparent conductors. We first investigate the effect of annealing on the silver nanosheets where we observe the onset of junction sintering at 160 °C after which the silver network becomes continuous. We then investigate the effect of line width and thickness on the electrical performance and the effect of varying the aperture dimensions on the optical performance. Using these data, we develop simple models, which allow us to optimize the grid and demonstrate a printed transparent conductor with a transmittance of 91% at a sheet resistance of 4.6 Ω/sq.
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Affiliation(s)
- Adam G. Kelly
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | - Siadhbh Sheil
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | | | - Eoin Caffrey
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | - Cian Gabbett
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | - Luke Doolan
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | - Valeria Nicolosi
- School
of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
| | - Jonathan N. Coleman
- School
of Physics, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin D2, Ireland
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5
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Simonian T, Xu M, Sadeghi I, Van Sambeek J, Ye K, Jaramillo R, LeBeau JM, Nicolosi V. Structural Characterization of BaZrS(3-y)Sey Perovskite Thin Films via Scanning Transmission Electron Microscopy. Microsc Microanal 2023; 29:1731-1732. [PMID: 37613861 DOI: 10.1093/micmic/ozad067.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Tigran Simonian
- Advanced Microscopy Lab, CRANN & AMBER, Grand Canal Quay, Trinity College Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Ireland
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Michael Xu
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ida Sadeghi
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jack Van Sambeek
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kevin Ye
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Rafael Jaramillo
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - James M LeBeau
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Valeria Nicolosi
- Advanced Microscopy Lab, CRANN & AMBER, Grand Canal Quay, Trinity College Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Ireland
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6
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Asaro GA, Solazzo M, Suku M, Spurling D, Genoud K, Gonzalez JG, Brien FJO, Nicolosi V, Monaghan MG. MXene functionalized collagen biomaterials for cardiac tissue engineering driving iPSC-derived cardiomyocyte maturation. NPJ 2D Mater Appl 2023; 7:44. [PMID: 38665478 PMCID: PMC11041746 DOI: 10.1038/s41699-023-00409-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 06/15/2023] [Indexed: 04/28/2024]
Abstract
Electroconductive biomaterials are gaining significant consideration for regeneration in tissues where electrical functionality is of crucial importance, such as myocardium, neural, musculoskeletal, and bone tissue. In this work, conductive biohybrid platforms were engineered by blending collagen type I and 2D MXene (Ti3C2Tx) and afterwards covalently crosslinking; to harness the biofunctionality of the protein component and the increased stiffness and enhanced electrical conductivity (matching and even surpassing native tissues) that two-dimensional titanium carbide provides. These MXene platforms were highly biocompatible and resulted in increased proliferation and cell spreading when seeded with fibroblasts. Conversely, they limited bacterial attachment (Staphylococcus aureus) and proliferation. When neonatal rat cardiomyocytes (nrCMs) were cultured on the substrates increased spreading and viability up to day 7 were studied when compared to control collagen substrates. Human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) were seeded and stimulated using electric-field generation in a custom-made bioreactor. The combination of an electroconductive substrate with an external electrical field enhanced cell growth, and significantly increased cx43 expression. This in vitro study convincingly demonstrates the potential of this engineered conductive biohybrid platform for cardiac tissue regeneration.
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Affiliation(s)
- Giuseppe A. Asaro
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
| | - Matteo Solazzo
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
| | - Meenakshi Suku
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- CÚRAM, Centre for Research in Medical Devices, National University of Ireland, H91 W2TY Galway, Ireland
| | - Dahnan Spurling
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- School of Chemistry, Trinity College Dublin, Dublin, 2 Ireland
| | - Katelyn Genoud
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, 2 Ireland
| | - Javier Gutierrez Gonzalez
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, 2 Ireland
| | - Fergal J. O’ Brien
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, 2 Ireland
| | - Valeria Nicolosi
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- School of Chemistry, Trinity College Dublin, Dublin, 2 Ireland
| | - Michael G. Monaghan
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- Advanced Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin, 2 Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, 2 Ireland
- CÚRAM, Centre for Research in Medical Devices, National University of Ireland, H91 W2TY Galway, Ireland
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7
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Tyndall D, Gannon L, Hughes L, Carolan J, Pinilla S, Jaśkaniec S, Spurling D, Ronan O, McGuinness C, McEvoy N, Nicolosi V, Browne MP. Understanding the effect of MXene in a TMO/MXene hybrid catalyst for the oxygen evolution reaction. NPJ 2D Mater Appl 2023; 7:15. [PMID: 38665479 PMCID: PMC11041736 DOI: 10.1038/s41699-023-00377-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 02/24/2023] [Indexed: 04/28/2024]
Abstract
Very recently, it has been reported that mixed transition metal oxide (TMO)/MXene catalysts show improved performance over TMO only catalysts for the oxygen evolution reaction (OER). However, the reasoning behind this observation is unknown. In this work mixed Co(OH)2/Ti3C2Tx were prepared and characterized for the OER using ex situ and operando spectroscopy techniques in order to initiate the understanding of why mixed TMO/MXene materials show better performances compared to TMO only catalysts. This work shows that the improved electrocatalysis for the composite material compared to the TMO only catalyst is due to the presence of higher Co oxide oxidation states at lower OER overpotentials for the mixed TMO/MXene catalysts. Furthermore, the presence of the MXene allows for a more mechanically robust film during OER, making the film more stable. Finally, our results show that small amounts of MXene are more advantageous for the OER during long-term stability measurements, which is linked to the formation of TiO2. The sensitivity of MXene oxidation ultimately limits TMO/MXene composites under alkaline OER conditions, meaning mass fractions must be carefully considered when designing such a catalyst to minimize the residual TiO2 formed during its lifetime.
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Affiliation(s)
- Daire Tyndall
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Lee Gannon
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Physics, Trinity College Dublin, Dublin, Ireland
| | - Lucia Hughes
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Julian Carolan
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Sergio Pinilla
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Sonia Jaśkaniec
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Dahnan Spurling
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Oskar Ronan
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Cormac McGuinness
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Physics, Trinity College Dublin, Dublin, Ireland
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
- I-Form Research Center, Trinity College Dublin, Dublin, Ireland
| | - Michelle Philippa Browne
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
- Helmholtz-Zentrum Berlin fur Materialien und Energie, 14109 Berlin, Germany
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8
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Maglia M, Quattropani MC, Polosa R, Panassidi A, Caruso M, Mangione M, Nicolosi V, Mazzeppi SD, Lenzo V, Sardella A, Caponnetto P. Qualitative study on the perception of combustible cigarettes, e-cigarettes and heated tobacco cigarettes among pregnant women. J Addict Dis 2023:1-11. [PMID: 36892131 DOI: 10.1080/10550887.2023.2184302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
The research proposes to investigate the psychological reasons that may explain women's addiction to smoking during pregnancy and the perception of combustible cigarettes, electronic cigarettes and heated tobacco cigarettes. The sample included 30 participants who smoke or people who previously smoked who chose to quit or continue smoking during pregnancy. The data was gathered via a semi-structured interview and developed from three research questions: feelings, opinions and perceptions of pregnant women toward e-cigarettes, heated tobacco cigarettes, and combustible cigarettes. The study used thematic qualitative analysis for the methodological formulation of the results. The Standards for Reporting Qualitative Research Standards (QRRS) checklist was used. In this qualitative research, three psychological reasons for the onset of smoking were found and analyzed: feelings of stress, nervousness, and loneliness. According to the results: 40.91% of the women who smoked combustible cigarettes decided to keep on smoking and 59.09% decided to quit, 16.67% of participants who use heated tobacco cigarette decided to continue during pregnancy and the remaining 83.33% decide to stop; lastly, there is a condition of fairness for adults who use e-cigarette, 50% decided to continue smoking during pregnancy and the other 50% decided to stop smoking. The data indicate that those who continue to smoke during pregnancy are participants who smoke combustible cigarettes, stating that they reduce the amount of smoke inhaled. Meanwhile, participants who use heated tobacco cigarettes or e-cigarettes are certain that they pose less risk than combustible cigarettes; nevertheless, most of them decide to quit smoking during pregnancy. Another important aspect that has been noted is that of formal abandonment treatments, as quite unexpectedly, there has been a unanimous recognition of strong distrust toward the possible risks to the unborn child. There is a lot of distrust and little knowledge of official smoking cessation therapies, and because of this, participants stated that they can quit smoking whenever they want and only with their own willpower. Five categories and related themes emerged from the thematic analysis, such as reasons for starting with themes such as stress, irritation, loneliness, adolescence and integration; reasons for attachment to topics such as habit and carelessness about one's health; perceptions of traditional cigarettes compared to e-cigarettes and heated cigarettes with related topics such as sensory experiences and side effects; feelings and use of official smoking cessation therapies with issues as willpower and knowledge; information on the effects of smoke during pregnancy and breastfeeding, including risk information.
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Affiliation(s)
- Marilena Maglia
- Department of Educational Sciences, Section of Psychology, University of Catania, Catania, Italy
- Center of Excellence for the Acceleration of Harm Reduction (COEHAR), University of Catania, Catania, Italy
- CTA-Villa Chiara Psychiatric Rehabilitation Clinic and Research, Mascalucia, Italy
| | - Maria C Quattropani
- Department of Educational Sciences, Section of Psychology, University of Catania, Catania, Italy
| | - Riccardo Polosa
- Center of Excellence for the Acceleration of Harm Reduction (COEHAR), University of Catania, Catania, Italy
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Alessia Panassidi
- Department of Educational Sciences, Section of Psychology, University of Catania, Catania, Italy
| | - Manuela Caruso
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Marta Mangione
- ECLAT Srl, Spin-Off of the University of Catania, Catania, Italy
| | - Valeria Nicolosi
- ECLAT Srl, Spin-Off of the University of Catania, Catania, Italy
| | | | - Vittorio Lenzo
- Department of Educational Sciences, Section of Psychology, University of Catania, Catania, Italy
| | - Alberto Sardella
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Pasquale Caponnetto
- Department of Educational Sciences, Section of Psychology, University of Catania, Catania, Italy
- Center of Excellence for the Acceleration of Harm Reduction (COEHAR), University of Catania, Catania, Italy
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9
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Ryan S, Browne MP, Zhussupbekova A, Spurling D, McKeown L, Douglas-Henry D, Prendeville L, Vaesen S, Schmitt W, Shvets I, Nicolosi V. Single walled carbon nanotube functionalisation in printed supercapacitor devices and shielding effect of Tin(II) Oxide. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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10
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Tyndall D, Craig MJ, Gannon L, McGuinness C, McEvoy N, Roy A, García-Melchor M, Browne MP, Nicolosi V. Demonstrating the source of inherent instability in NiFe LDH-based OER electrocatalysts. J Mater Chem A Mater 2023; 11:4067-4077. [PMID: 36846496 PMCID: PMC9942694 DOI: 10.1039/d2ta07261k] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/16/2023] [Indexed: 06/01/2023]
Abstract
Nickel-iron layered double hydroxides are known to be one of the most highly active catalysts for the oxygen evolution reaction in alkaline conditions. The high electrocatalytic activity of the material however cannot be sustained within the active voltage window on timescales consistent with commercial requirements. The goal of this work is to identify and prove the source of inherent catalyst instability by tracking changes in the material during OER activity. By combining in situ and ex situ Raman analyses we elucidate long-term effects on the catalyst performance from a changing crystallographic phase. In particular, we attribute electrochemically stimulated compositional degradation at active sites as the principal cause of the sharp loss of activity from NiFe LDHs shortly after the alkaline cell is turned on. EDX, XPS, and EELS analyses performed after OER also reveal noticeable leaching of Fe metals compared to Ni, principally from highly active edge sites. In addition, post-cycle analysis identified a ferrihydrite by-product formed from the leached Fe. Density functional theory calculations shed light on the thermodynamic driving force for the leaching of Fe metals and propose a dissolution pathway which involves [FeO4]2- removal at relevant OER potentials.
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Affiliation(s)
- Daire Tyndall
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Michael John Craig
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Lee Gannon
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
- School of Physics, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Cormac McGuinness
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
- School of Physics, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Niall McEvoy
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Ahin Roy
- Materials Science Centre, Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Max García-Melchor
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
| | - Michelle P Browne
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
- Helmholtz-Zentrum Berlin für Materialien und Energie Berlin 14109 Germany
| | - Valeria Nicolosi
- School of Chemistry, Trinity College Dublin, College Green Dublin 2 Ireland
- CRANN and AMBER Research Centres, Trinity College Dublin, College Green Dublin 2 Ireland
- I-Form Research, Trinity College Dublin Ireland
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11
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Ronan O, Roy A, Ryan S, Hughes L, Downing C, Jones L, Nicolosi V. Templated Synthesis of SiO 2 Nanotubes for Lithium-Ion Battery Applications: An In Situ (Scanning) Transmission Electron Microscopy Study. ACS Omega 2023; 8:925-933. [PMID: 36643545 PMCID: PMC9835544 DOI: 10.1021/acsomega.2c06298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
One of the weaknesses of silicon-based batteries is the rapid deterioration of the charge-storage capacity with increasing cycle numbers. Pure silicon anodes tend to suffer from poor cycling ability due to the pulverization of the crystal structure after repeated charge and discharge cycles. In this work, we present the synthesis of a hollow nanostructured SiO2 material for lithium-ion anode applications to counter this drawback. To improve the understanding of the synthesis route, the crucial synthesis step of removing the ZnO template core is shown using an in situ closed gas-cell sample holder for transmission electron microscopy. A direct visual observation of the removal of the ZnO template from the SiO2 shell is yet to be reported in the literature and is a critical step in understanding the mechanism by which these hollow nanostructures form from their core-shell precursors for future electrode material design. Using this unique technique, observation of dynamic phenomena at the individual particle scale is possible with simultaneous heating in a reactive gas environment. The electrochemical benefits of the hollow morphology are demonstrated with exceptional cycling performance, with capacity increasing with subsequent charge-discharge cycles. This demonstrates the criticality of nanostructured battery materials for the development of next-generation Li+-ion batteries.
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Affiliation(s)
- Oskar Ronan
- Centre
for Research on Adaptive Nanostructures and Nanodevices (CRANN) and
Advanced Materials and Bioengineering Research (AMBER), School of
Chemistry, Trinity College Dublin, DublinDublin 2, Ireland
| | - Ahin Roy
- Materials
Science Centre, Indian Institute of Technology, Kharagpur721302, West Bengal, India
| | - Sean Ryan
- Centre
for Research on Adaptive Nanostructures and Nanodevices (CRANN) and
Advanced Materials and Bioengineering Research (AMBER), School of
Chemistry, Trinity College Dublin, DublinDublin 2, Ireland
| | - Lucia Hughes
- Centre
for Research on Adaptive Nanostructures and Nanodevices (CRANN) and
Advanced Materials and Bioengineering Research (AMBER), School of
Chemistry, Trinity College Dublin, DublinDublin 2, Ireland
| | - Clive Downing
- Advanced
Microscopy Laboratory (AML), and Advanced Materials and Bioengineering
Research (AMBER), Trinity College Dublin, DublinDublin 2, Ireland
| | - Lewys Jones
- School
of Physics, Advanced Microscopy Laboratory (AML), and Advanced Materials
and Bioengineering Research (AMBER), Trinity
College Dublin, DublinDublin 2, Ireland
| | - Valeria Nicolosi
- Centre
for Research on Adaptive Nanostructures and Nanodevices (CRANN) and
Advanced Materials and Bioengineering Research (AMBER), School of
Chemistry, Trinity College Dublin, DublinDublin 2, Ireland
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12
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Konkena B, Kaur H, Tian R, Gabbett C, McCrystall M, Horvath DV, Synnatschke K, Roy A, Smith R, Nicolosi V, Scanlon MD, Coleman JN. Liquid Processing of Interfacially Grown Iron-Oxide Flowers into 2D-Platelets Yields Lithium-Ion Battery Anodes with Capacities of Twice the Theoretical Value. Small 2022; 18:e2203918. [PMID: 36047959 DOI: 10.1002/smll.202203918] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Iron oxide (Fe2 O3 ) is an abundant and potentially low-cost material for fabricating lithium-ion battery anodes. Here, the growth of α-Fe2 O3 nano-flowers at an electrified liquid-liquid interface is demonstrated. Sonication is used to convert these flowers into quasi-2D platelets with lateral sizes in the range of hundreds of nanometers and thicknesses in the range of tens of nanometers. These nanoplatelets can be combined with carbon nanotubes to form porous, conductive composites which can be used as electrodes in lithium-ion batteries. Using a standard activation process, these anodes display good cycling stability, reasonable rate performance and low-rate capacities approaching 1500 mAh g-1 , consistent with the current state-of-the-art for Fe2 O3 . However, by using an extended activation process, it is found that the morphology of these composites can be significantly changed, rendering the iron oxide amorphous and significantly increasing the porosity and internal surface area. These morphological changes yield anodes with very good cycling stability and low-rate capacity exceeding 2000 mAh g-1 , which is competitive with the best anode materials in the literature. However, the data implies that, after activation, the iron oxide displays a reduced solid-state lithium-ion diffusion coefficient resulting in somewhat degraded rate performance.
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Affiliation(s)
- Bharathi Konkena
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Harneet Kaur
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Ruiyuan Tian
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Cian Gabbett
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Mark McCrystall
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Dominik Valter Horvath
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Kevin Synnatschke
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Ahin Roy
- School of Chemistry, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Ross Smith
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Valeria Nicolosi
- School of Chemistry, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Micheál D Scanlon
- The Bernal Institute and Department of Chemical Sciences, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Jonathan N Coleman
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D02 PN40, Ireland
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13
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Garcia A, Biswas S, McNulty D, Roy A, Raha S, Trabesinger S, Nicolosi V, Singha A, Holmes JD. One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes. ACS Appl Energy Mater 2022; 5:1922-1932. [PMID: 35252775 PMCID: PMC8889535 DOI: 10.1021/acsaem.1c03404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/05/2022] [Indexed: 05/12/2023]
Abstract
Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a very simple, one-pot solvothermal-like growth of carbonaceous germanium (C-Ge) nanowires in a supercritical solvent. C-Ge nanowires are grown just by heating (380-490 °C) a commercially sourced Ge precursor, diphenylgermane (DPG), in supercritical toluene, without any external catalysts or surfactants. The self-seeded nanowires are highly crystalline and very thin, with an average diameter between 11 and 19 nm. The amorphous carbonaceous layer coating on Ge nanowires is formed from the polymerization and condensation of light carbon compounds generated from the decomposition of DPG during the growth process. These carbonaceous Ge nanowires demonstrate impressive electrochemical performance as an anode material for Li-ion batteries with high specific charge values (>1200 mAh g-1 after 500 cycles), greater than most of the previously reported for other "binder-free" Ge nanowire anode materials, and exceptionally stable capacity retention. The high specific charge values and impressively stable capacity are due to the unique morphology and composition of the nanowires.
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Affiliation(s)
- Adrià Garcia
- School
of Chemistry & Tyndall National Institute, University College Cork, Cork T12 YN60, Ireland
- AMBER
Centre, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - Subhajit Biswas
- School
of Chemistry & Tyndall National Institute, University College Cork, Cork T12 YN60, Ireland
- AMBER
Centre, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
- . Tel: +353 (0)21 4905143
| | - David McNulty
- Battery
Electrodes and Cells, Electrochemistry Laboratory, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
- Bernal
Institute & Chemical Sciences Department, University of Limerick, Limerick V94 T9PX, Ireland
| | - Ahin Roy
- School
of Chemistry and CRANN, AMBER Centre, Trinity
College Dublin, Dublin 2, Ireland
| | - Sreyan Raha
- Department
of Physics, Bose Institute, 93/1, A.P.C. Road, Kolkata 700009, India
| | - Sigita Trabesinger
- Battery
Electrodes and Cells, Electrochemistry Laboratory, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Valeria Nicolosi
- School
of Chemistry and CRANN, AMBER Centre, Trinity
College Dublin, Dublin 2, Ireland
| | - Achintya Singha
- Department
of Physics, Bose Institute, 93/1, A.P.C. Road, Kolkata 700009, India
| | - Justin D. Holmes
- School
of Chemistry & Tyndall National Institute, University College Cork, Cork T12 YN60, Ireland
- AMBER
Centre, Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
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14
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Garcia-Gil A, Biswas S, Roy A, Saladukh D, Raha S, Blon T, Conroy M, Nicolosi V, Singha A, Lacroix LM, Holmes JD. Growth and analysis of the tetragonal (ST12) germanium nanowires. Nanoscale 2022; 14:2030-2040. [PMID: 35076045 DOI: 10.1039/d1nr07669h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
New semiconducting materials, such as state-of-the-art alloys, engineered composites and allotropes of well-established materials can demonstrate unique physical properties and generate wide possibilities for a vast range of applications. Here we demonstrate, for the first time, the fabrication of a metastable allotrope of Ge, tetragonal germanium (ST12-Ge), in nanowire form. Nanowires were grown in a solvothermal-like single-pot method using supercritical toluene as a solvent, at moderate temperatures (290-330 °C) and a pressure of ∼48 bar. One-dimensional (1D) nanostructures of ST12-Ge were achieved via a self-seeded vapour-liquid-solid (VLS)-like paradigm, with the aid of an in situ formed amorphous carbonaceous layer. The ST12 phase of Ge nanowires is governed by the formation of this carbonaceous structure on the surface of the nanowires and the creation of Ge-C bonds. The crystalline phase and structure of the ST12-Ge nanowires were confirmed by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy. The nanowires produced displayed a high aspect ratio, with a very narrow mean diameter of 9.0 ± 1.4 nm, and lengths beyond 4 μm. The ST12-Ge nanowire allotrope was found to have a profound effect on the intensity of the light emission and the directness of the bandgap, as confirmed by a temperature-dependent photoluminescence study.
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Affiliation(s)
- Adrià Garcia-Gil
- School of Chemistry & Tyndall National Institute, University College Cork, Cork, T12 YN60, Ireland.
- AMBER Centre, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
| | - Subhajit Biswas
- School of Chemistry & Tyndall National Institute, University College Cork, Cork, T12 YN60, Ireland.
- AMBER Centre, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
| | - Ahin Roy
- School of Chemistry and CRANN & AMBER Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Dzianis Saladukh
- Department of Photonics, Tyndall National Institute, University College Cork, Cork, Ireland
| | - Sreyan Raha
- Department of Physics, Bose Institute, 93/1, A.P.C Road, Kolkata, 700009, India
| | - Thomas Blon
- Université de Toulouse, UMR 5215 INSA, CNRS, UPS, Laboratoire de Physique et Chimie des Nano-Objets, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France
| | - Michele Conroy
- Department of Materials, Royal School of Mines, Imperial College London, UK
- TEMUL, Department of Physics, Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Valeria Nicolosi
- School of Chemistry and CRANN & AMBER Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Achintya Singha
- Department of Physics, Bose Institute, 93/1, A.P.C Road, Kolkata, 700009, India
| | - Lise-Marie Lacroix
- Université de Toulouse, UMR 5215 INSA, CNRS, UPS, Laboratoire de Physique et Chimie des Nano-Objets, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France
| | - Justin D Holmes
- School of Chemistry & Tyndall National Institute, University College Cork, Cork, T12 YN60, Ireland.
- AMBER Centre, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
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15
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Moore K, O’Connell EN, Griffin SM, Downing C, Colfer L, Schmidt M, Nicolosi V, Bangert U, Keeney L, Conroy M. Charged Domain Wall and Polar Vortex Topologies in a Room-Temperature Magnetoelectric Multiferroic Thin Film. ACS Appl Mater Interfaces 2022; 14:5525-5536. [PMID: 35044754 PMCID: PMC8815039 DOI: 10.1021/acsami.1c17383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
Multiferroic topologies are an emerging solution for future low-power magnetic nanoelectronics due to their combined tuneable functionality and mobility. Here, we show that in addition to being magnetoelectric multiferroic at room temperature, thin-film Aurivillius phase Bi6TixFeyMnzO18 is an ideal material platform for both domain wall and vortex topology-based nanoelectronic devices. Utilizing atomic-resolution electron microscopy, we reveal the presence and structure of 180°-type charged head-to-head and tail-to-tail domain walls passing throughout the thin film. Theoretical calculations confirm the subunit cell cation site preference and charged domain wall energetics for Bi6TixFeyMnzO18. Finally, we show that polar vortex-type topologies also form at out-of-phase boundaries of stacking faults when internal strain and electrostatic energy gradients are altered. This study could pave the way for controlled polar vortex topology formation via strain engineering in other multiferroic thin films. Moreover, these results confirm that the subunit cell topological features play an important role in controlling the charge and spin state of Aurivillius phase films and other multiferroic heterostructures.
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Affiliation(s)
- Kalani Moore
- Department
of Physics, Bernal Institute, School of Natural Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Eoghan N. O’Connell
- Department
of Physics, Bernal Institute, School of Natural Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Sinéad M. Griffin
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Clive Downing
- Advanced
Microscopy Laboratory & AMBER, Trinity
College Dublin, Dublin D02 PN40, Ireland
| | - Louise Colfer
- Tyndall
National Institute, University College Cork, Cork T12 R5CP, Ireland
| | - Michael Schmidt
- Tyndall
National Institute, University College Cork, Cork T12 R5CP, Ireland
| | - Valeria Nicolosi
- Advanced
Microscopy Laboratory & AMBER, Trinity
College Dublin, Dublin D02 PN40, Ireland
- School of
Chemistry, Trinity College Dublin, Dublin D02 PN40, Ireland
| | - Ursel Bangert
- Department
of Physics, Bernal Institute, School of Natural Sciences, University of Limerick, Limerick V94 T9PX, Ireland
| | - Lynette Keeney
- Tyndall
National Institute, University College Cork, Cork T12 R5CP, Ireland
| | - Michele Conroy
- Department
of Physics, Bernal Institute, School of Natural Sciences, University of Limerick, Limerick V94 T9PX, Ireland
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- London
Centre for Nanotechnology, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
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16
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Ronan O, Downing C, Nicolosi V. Inhibition of vacuum sublimation artefacts for (Scanning) Transmission Electron Microscopy ((S)TEM) of sulphur samples via encapsulation. Open Res Eur 2022; 2:1. [PMID: 37645285 PMCID: PMC10445806 DOI: 10.12688/openreseurope.14378.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/27/2022] [Indexed: 08/31/2023]
Abstract
Lithium-sulfur battery is one of promising candidates for next-generation energy storage device due to the sulfur cathode material with low cost and nontoxicity, and super high theoretical energy density (nearly 2600Wh kg -1) and specific energy (2567Wh kg -1). Sulphur, however, poses a few interesting challenges before it can gain widespread utilisation. The biggest issue is known as the polysulphide shuttling effect which contributes to rapid capacity loss after cycling. Accurate characterisation of sulphur cathodic materials becomes critical to our understanding polysulphide shuttling effect in the quest of finding mitigating solutions. Electron microscopy is playing a crucial role in battery research in determining structure-property-function relations. However, sulphur undergoes sublimation at a point above the typical pressures found in the column of a transmission electron microscope (TEM) at room temperature. This makes the imaging and characterisation of any sort of nanostructured sulphur samples challenging, as the material will be modified or even disappear rapidly as soon as it is inserted into the TEM vacuum. As a result, materials characterised by such methods are prone to deviation from normal conditions to a great extent. To prevent this, a novel method of encapsulating sulphur particles between silicon nitride (SiN x) membranes is demonstrated in this work.
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Affiliation(s)
- Oskar Ronan
- Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Clive Downing
- Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
- Advanced Microscopy Laboratory, Trinity College Dublin, Dublin, Ireland
| | - Valeria Nicolosi
- Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
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17
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Liu J, Mckeon L, Garcia J, Pinilla S, Barwich S, Möbius M, Stamenov P, Coleman JN, Nicolosi V. Additive Manufacturing of Ti 3 C 2 -MXene-Functionalized Conductive Polymer Hydrogels for Electromagnetic-Interference Shielding. Adv Mater 2022; 34:e2106253. [PMID: 34784072 DOI: 10.1002/adma.202106253] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/27/2021] [Indexed: 06/13/2023]
Abstract
The ongoing miniaturization of devices and development of wireless and implantable technologies demand electromagnetic interference (EMI)-shielding materials with customizability. Additive manufacturing of conductive polymer hydrogels with favorable conductivity and biocompatibility can offer new opportunities for EMI-shielding applications. However, simultaneously achieving high conductivity, design freedom, and shape fidelity in 3D printing of conductive polymer hydrogels is still very challenging. Here, an aqueous Ti3 C2 -MXene-functionalized poly(3,4-ethylenedioxythiophene):polystyrene sulfonate ink is developed for extrusion printing to create 3D objects with arbitrary geometries, and a freeze-thawing protocol is proposed to transform the printed objects directly into highly conductive and robust hydrogels with high shape fidelity on both the macro- and microscale. The as-obtained hydrogel exhibits a high conductivity of 1525.8 S m-1 at water content up to 96.6 wt% and also satisfactory mechanical properties with flexibility, stretchability, and fatigue resistance. Furthermore, the use of the printed hydrogel for customizable EMI-shielding applications is demonstrated. The proposed easy-to-manufacture approach, along with the highlighted superior properties, expands the potential of conductive polymer hydrogels in future customizable applications and represents a real breakthrough from the current state of the art.
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Affiliation(s)
- Ji Liu
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Lorcan Mckeon
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - James Garcia
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Sergio Pinilla
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Sebastian Barwich
- School of Physics, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Matthias Möbius
- School of Physics, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Plamen Stamenov
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Jonathan N Coleman
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
- I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Dublin, D02 PN40, Ireland
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18
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Kuai X, Li K, Chen J, Wang H, Yao J, Chiang CL, Liu T, Ye H, Zhao J, Lin YG, Zhang L, Nicolosi V, Gao L. Interfacial Engineered Vanadium Oxide Nanoheterostructures Synchronizing High-Energy and Long-Term Potassium-Ion Storage. ACS Nano 2022; 16:1502-1510. [PMID: 35012309 PMCID: PMC8793133 DOI: 10.1021/acsnano.1c09935] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Potassium ion hybrid capacitors (KICs) have drawn tremendous attention for large-scale energy storage applications because of their high energy and power densities and the abundance of potassium sources. However, achieving KICs with high capacity and long lifespan remains challenging because the large size of potassium ions causes sluggish kinetics and fast structural pulverization of electrodes. Here, we report a composite anode of VO2-V2O5 nanoheterostructures captured by a 3D N-doped carbon network (VO2-V2O5/NC) that exhibits a reversible capacity of 252 mAh g-1 at 1 A g-1 over 1600 cycles and a rate performance with 108 mAh g-1 at 10 A g-1. Quantitative kinetics analyses demonstrate that such great rate capability and cyclability are enabled by the capacitive-dominated potassium storage mechanism in the interfacial engineered VO2-V2O5 nanoheterostructures. The further fabricated full KIC cell consisting of a VO2-V2O5/NC anode and an active carbon cathode delivers a high operating voltage window of 4.0 V and energy and power densities up to 154 Wh kg-1 and 10 000 W kg-1, respectively, surpassing most state-of-the-art KICs.
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Affiliation(s)
- Xiaoxiao Kuai
- Soochow
Institute for Energy and Materials Innovations & Key Laboratory
of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu
Province, College of Energy, Soochow University, Suzhou 215006, China
| | - Ke Li
- School
of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices
(CRANN) & Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Jianmei Chen
- College
of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Hao Wang
- Research
Institute of Superconductor Electronics, School of Electronic Science
and Engineering, Nanjing University, Nanjing 210023, China
| | - Junyi Yao
- Soochow
Institute for Energy and Materials Innovations & Key Laboratory
of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu
Province, College of Energy, Soochow University, Suzhou 215006, China
| | - Chao-Lung Chiang
- National
Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Tingting Liu
- School
of Environmental Science and Engineering& Jiangsu Key Laboratory
of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215001, China
| | - Hanzhang Ye
- School
of Environmental Science and Engineering& Jiangsu Key Laboratory
of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215001, China
| | - Jianqing Zhao
- Soochow
Institute for Energy and Materials Innovations & Key Laboratory
of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu
Province, College of Energy, Soochow University, Suzhou 215006, China
| | - Yan-Gu Lin
- National
Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Labao Zhang
- Research
Institute of Superconductor Electronics, School of Electronic Science
and Engineering, Nanjing University, Nanjing 210023, China
| | - Valeria Nicolosi
- School
of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices
(CRANN) & Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Lijun Gao
- Soochow
Institute for Energy and Materials Innovations & Key Laboratory
of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu
Province, College of Energy, Soochow University, Suzhou 215006, China
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19
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Thakur P, Alam K, Roy A, Downing C, Nicolosi V, Sen P, Narayanan TN. Extending the Cyclability of Alkaline Zinc-Air Batteries: Synergistic Roles of Li + and K + Ions in Electrodics. ACS Appl Mater Interfaces 2021; 13:33112-33122. [PMID: 34247478 DOI: 10.1021/acsami.1c08300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tweaking the electrolyte of the anode compartment of zinc-air battery (ZAB) system is shown to be extending the charge-discharge cyclability of the cell. An alkaline zinc (Zn)-air cell working for ∼32 h (192 cycles) without failure is extended to >55 h (>330 cycles) by modifying the anode compartment with a mixture electrolyte of KOH and LiOH. The cell containing the mixture electrolyte has a low overpotential for charging along with high discharge capacity. The role of Li+ ions in tuning the electrode morphology and electrodics is studied both theoretically and experimentally. The synergistic effect of Li+ and K+ ions in the electrolyte on improved ZAB performance is proven. This study can pave new ways for the commercial implementation of ZAB, where it has already proven its potential in low-cost, high energy density, and mobility applications.
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Affiliation(s)
- Pallavi Thakur
- Tata Institute of Fundamental Research-Hyderabad, Hyderabad, Telangana 500046, India
| | - Khorsed Alam
- Harish-Chandra Research Institute, HBNI, Allahabad, Uttar Pradesh 211019, India
| | - Ahin Roy
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin D02 PN40, Ireland
| | - Clive Downing
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin D02 PN40, Ireland
| | - Valeria Nicolosi
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin D02 PN40, Ireland
| | - Prasenjit Sen
- Harish-Chandra Research Institute, HBNI, Allahabad, Uttar Pradesh 211019, India
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20
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Taurisano N, Bravetti G, Carallo S, Liang M, Ronan O, Spurling D, Coelho J, Nicolosi V, Colella S, Gigli G, Listorti A, Rizzo A. Inclusion of 2D Transition Metal Dichalcogenides in Perovskite Inks and Their Influence on Solar Cell Performance. Nanomaterials (Basel) 2021; 11:nano11071706. [PMID: 34209511 PMCID: PMC8308140 DOI: 10.3390/nano11071706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
Organic–inorganic hybrid perovskite materials have raised great interest in recent years due to their excellent optoelectronic properties, which promise stunning improvements in photovoltaic technologies. Moreover, two-dimensional layered materials such as graphene, its derivatives, and transition metal dichalcogenides have been extensively investigated for a wide range of electronic and optoelectronic applications and have recently shown a synergistic effect in combination with hybrid perovskite materials. Here, we report on the inclusion of liquid-phase exfoliated molybdenum disulfide nanosheets into different perovskite precursor solutions, exploring their influence on final device performance. We compared the effect of such additives upon the growth of diverse perovskites, namely CH3NH3PbI3 (MAPbI3) and triple-cation with mixed halides Csx (MA0.17FA0.83)(1−x)Pb (I0.83Br0.17)3 perovskite. We show how for the referential MAPbI3 materials the addition of the MoS2 additive leads to the formation of larger, highly crystalline grains, which result in a remarkable 15% relative improvement in power conversion efficiency. On the other hand, for the mixed cation–halide perovskite no improvements were observed, confirming that the nucleation process for the two materials is differently influenced by the presence of MoS2.
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Affiliation(s)
- Nicola Taurisano
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
| | - Gianluca Bravetti
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
| | - Sonia Carallo
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
| | - Meiying Liang
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Oskar Ronan
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Dahnan Spurling
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - João Coelho
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
- CENIMAT|i3N, Departamento de Ciência de Materiais, Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus da Caparica, 2829-516 Caparica, Portugal
| | - Valeria Nicolosi
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Silvia Colella
- CNR NANOTEC, c/o Department of Chemistry, Institute of Nanotechnology, University of Bari ‘Aldo Moro’, Via Orabona 4, 70126 Bari, Italy;
| | - Giuseppe Gigli
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
| | - Andrea Listorti
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70126 Bari, Italy
- Correspondence:
| | - Aurora Rizzo
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
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21
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Kaur H, Tian R, Roy A, McCrystall M, Horvath DV, Onrubia GL, Smith R, Ruether M, Griffin A, Backes C, Nicolosi V, Coleman JN. Correction to Production of Quasi-2D Platelets of Nonlayered Iron Pyrite (FeS 2) by Liquid-Phase Exfoliation for High Performance Battery Electrodes. ACS Nano 2021; 15:9196. [PMID: 33950685 DOI: 10.1021/acsnano.1c03538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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22
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Ippolito S, Kelly AG, Furlan de Oliveira R, Stoeckel MA, Iglesias D, Roy A, Downing C, Bian Z, Lombardi L, Samad YA, Nicolosi V, Ferrari AC, Coleman JN, Samorì P. Covalently interconnected transition metal dichalcogenide networks via defect engineering for high-performance electronic devices. Nat Nanotechnol 2021; 16:592-598. [PMID: 33633405 DOI: 10.1038/s41565-021-00857-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Solution-processed semiconducting transition metal dichalcogenides are at the centre of an ever-increasing research effort in printed (opto)electronics. However, device performance is limited by structural defects resulting from the exfoliation process and poor inter-flake electronic connectivity. Here, we report a new molecular strategy to boost the electrical performance of transition metal dichalcogenide-based devices via the use of dithiolated conjugated molecules, to simultaneously heal sulfur vacancies in solution-processed transition metal disulfides and covalently bridge adjacent flakes, thereby promoting percolation pathways for the charge transport. We achieve a reproducible increase by one order of magnitude in field-effect mobility (µFE), current ratio (ION/IOFF) and switching time (τS) for liquid-gated transistors, reaching 10-2 cm2 V-1 s-1, 104 and 18 ms, respectively. Our functionalization strategy is a universal route to simultaneously enhance the electronic connectivity in transition metal disulfide networks and tailor on demand their physicochemical properties according to the envisioned applications.
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Affiliation(s)
- Stefano Ippolito
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France
| | - Adam G Kelly
- School of Physics, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | | | | | - Daniel Iglesias
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France
| | - Ahin Roy
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Clive Downing
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Zan Bian
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Lucia Lombardi
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Yarjan Abdul Samad
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Valeria Nicolosi
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Andrea C Ferrari
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Jonathan N Coleman
- School of Physics, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France.
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23
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Zhu Y, Liu J, Guo T, Wang JJ, Tang X, Nicolosi V. Multifunctional Ti 3C 2T x MXene Composite Hydrogels with Strain Sensitivity toward Absorption-Dominated Electromagnetic-Interference Shielding. ACS Nano 2021; 15:1465-1474. [PMID: 33397098 DOI: 10.1021/acsnano.0c08830] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The fast development of terahertz technologies demands high-performance electromagnetic interference (EMI) shielding materials to create safe electromagnetic environments. Despite tremendous breakthroughs in achieving superb shielding efficiency (SE), conventional shielding materials have high reflectivity and cannot be re-edited or recycled once formed, resulting in detrimental secondary electromagnetic pollution and poor adaptability. Herein, a hydrogel-type shielding material incorporating MXene and poly(acrylic acid) is fabricated through a biomineralization-inspired assembly route. The composite hydrogel exhibits excellent stretchability and recyclability, favorable shape adaptability and adhesiveness, and fast self-healing capability, demonstrating great application flexibility and reliability. More interestingly, the shielding performance of the hydrogel shows absorption-dominated feature due to the combination of the porous structure, moderate conductivity, and internal water-rich environment. High EMI SE of 45.3 dB and broad effective absorption bandwidth (0.2-2.0 THz) with excellent refection loss of 23.2 dB can be simultaneously achieved in an extremely thin hydrogel (0.13 mm). Furthermore, such hydrogel demonstrates sensitive deformation responses and can be used as an on-skin sensor. This work provides not only an alternative strategy for designing next-generation EMI shielding material but also a highly efficient and convenient method for fabricating MXene composite on macroscopic scales.
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Affiliation(s)
- Yunyi Zhu
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Ji Liu
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan 410082, China
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin, Dublin 2, Ireland
- I-Form Research Centre, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Tong Guo
- School of Aeronautics and Astronautics, Central South University, Changsha, Hunan 410083, China
| | - Jing Jing Wang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Xiuzhi Tang
- School of Aeronautics and Astronautics, Central South University, Changsha, Hunan 410083, China
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin, Dublin 2, Ireland
- I-Form Research Centre, Trinity College Dublin, Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, Dublin 2, Ireland
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24
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Wang H, Li J, Li K, Lin Y, Chen J, Gao L, Nicolosi V, Xiao X, Lee JM. Transition metal nitrides for electrochemical energy applications. Chem Soc Rev 2021; 50:1354-1390. [DOI: 10.1039/d0cs00415d] [Citation(s) in RCA: 295] [Impact Index Per Article: 98.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review comprehensively summarizes the progress on the structural and electronic modulation of transition metal nitrides for electrochemical energy applications.
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Affiliation(s)
- Hao Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University
- Singapore 637459
- Singapore
| | - Jianmin Li
- State Key Laboratory of Electronic Thin Film and Integrated Devices
- School of Electronic Science and Engineering
- University of Electronic Science and Technology of China
- Chengdu
- China
| | - Ke Li
- School of Chemistry
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio-Engineering Research Centre (AMBER)
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Yanping Lin
- College of Energy, Soochow Institute for Energy and Materials Innovations, & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University
- Suzhou 215006
- China
| | - Jianmei Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University
- Suzhou 215123
- China
| | - Lijun Gao
- College of Energy, Soochow Institute for Energy and Materials Innovations, & Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University
- Suzhou 215006
- China
| | - Valeria Nicolosi
- School of Chemistry
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio-Engineering Research Centre (AMBER)
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Xu Xiao
- State Key Laboratory of Electronic Thin Film and Integrated Devices
- School of Electronic Science and Engineering
- University of Electronic Science and Technology of China
- Chengdu
- China
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering, Nanyang Technological University
- Singapore 637459
- Singapore
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25
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Costard LS, Kelly DC, Power RN, Hobbs C, Jaskaniec S, Nicolosi V, Cavanagh BL, Curtin CM, O’Brien FJ. Layered Double Hydroxide as a Potent Non-viral Vector for Nucleic Acid Delivery Using Gene-Activated Scaffolds for Tissue Regeneration Applications. Pharmaceutics 2020; 12:pharmaceutics12121219. [PMID: 33339452 PMCID: PMC7765978 DOI: 10.3390/pharmaceutics12121219] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/02/2020] [Accepted: 12/10/2020] [Indexed: 02/04/2023] Open
Abstract
Nonviral vectors offer a safe alternative to viral vectors for gene therapy applications, albeit typically exhibiting lower transfection efficiencies. As a result, there remains a significant need for the development of a nonviral delivery system with low cytotoxicity and high transfection efficacy as a tool for safe and transient gene delivery. This study assesses MgAl-NO3 layered double hydroxide (LDH) as a nonviral vector to deliver nucleic acids (pDNA, miRNA and siRNA) to mesenchymal stromal cells (MSCs) in 2D culture and using a 3D tissue engineering scaffold approach. Nanoparticles were formulated by complexing LDH with pDNA, microRNA (miRNA) mimics and inhibitors, and siRNA at varying mass ratios of LDH:nucleic acid. In 2D monolayer, pDNA delivery demonstrated significant cytotoxicity issues, and low cellular transfection was deemed to be a result of the poor physicochemical properties of the LDH–pDNA nanoparticles. However, the lower mass ratios required to successfully complex with miRNA and siRNA cargo allowed for efficient delivery to MSCs. Furthermore, incorporation of LDH–miRNA nanoparticles into collagen-nanohydroxyapatite scaffolds resulted in successful overexpression of miRNA in MSCs, demonstrating the development of an efficacious miRNA delivery platform for gene therapy applications in regenerative medicine.
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Affiliation(s)
- Lara S. Costard
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, D02 YN77 Dublin, Ireland; (L.S.C.); (D.C.K.); (R.N.P.)
| | - Domhnall C. Kelly
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, D02 YN77 Dublin, Ireland; (L.S.C.); (D.C.K.); (R.N.P.)
- Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland, Galway (NUI, Galway), H91 TK33 Galway, Ireland
| | - Rachael N. Power
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, D02 YN77 Dublin, Ireland; (L.S.C.); (D.C.K.); (R.N.P.)
| | - Christopher Hobbs
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and Trinity College Dublin (TCD), College Green, D02 PN40 Dublin, Ireland; (C.H.); (S.J.); (V.N.)
- School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, D02 PN40 Dublin, Ireland
| | - Sonia Jaskaniec
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and Trinity College Dublin (TCD), College Green, D02 PN40 Dublin, Ireland; (C.H.); (S.J.); (V.N.)
- School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, D02 PN40 Dublin, Ireland
| | - Valeria Nicolosi
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and Trinity College Dublin (TCD), College Green, D02 PN40 Dublin, Ireland; (C.H.); (S.J.); (V.N.)
- School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, College Green, D02 PN40 Dublin, Ireland
| | - Brenton L. Cavanagh
- Cellular and Molecular Imaging Core, RCSI, 123 St Stephen’s Green, D02 YN77 Dublin, Ireland;
| | - Caroline M. Curtin
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, D02 YN77 Dublin, Ireland; (L.S.C.); (D.C.K.); (R.N.P.)
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and Trinity College Dublin (TCD), College Green, D02 PN40 Dublin, Ireland; (C.H.); (S.J.); (V.N.)
- Trinity Centre for BioMedical Engineering, Trinity Biomedical Sciences Institute, TCD, College Green, D02 PN40 Dublin, Ireland
- Correspondence: (C.M.C.); (F.J.O.); Tel.: +353-1-4028620 (C.M.C.); +353-1-4028533 (F.J.O.)
| | - Fergal J. O’Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, D02 YN77 Dublin, Ireland; (L.S.C.); (D.C.K.); (R.N.P.)
- Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland, Galway (NUI, Galway), H91 TK33 Galway, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and Trinity College Dublin (TCD), College Green, D02 PN40 Dublin, Ireland; (C.H.); (S.J.); (V.N.)
- Trinity Centre for BioMedical Engineering, Trinity Biomedical Sciences Institute, TCD, College Green, D02 PN40 Dublin, Ireland
- Correspondence: (C.M.C.); (F.J.O.); Tel.: +353-1-4028620 (C.M.C.); +353-1-4028533 (F.J.O.)
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26
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Kaur H, Tian R, Roy A, McCrystall M, Horvath DV, Lozano Onrubia G, Smith R, Ruether M, Griffin A, Backes C, Nicolosi V, Coleman JN. Production of Quasi-2D Platelets of Nonlayered Iron Pyrite (FeS 2) by Liquid-Phase Exfoliation for High Performance Battery Electrodes. ACS Nano 2020; 14:13418-13432. [PMID: 32960568 DOI: 10.1021/acsnano.0c05292] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Over the past 15 years, two-dimensional (2D) materials have been studied and exploited for many applications. In many cases, 2D materials are formed by the exfoliation of layered crystals such as transition-metal disulfides. However, it has recently become clear that it is possible to exfoliate nonlayered materials so long as they have a nonisotropic bonding arrangement. Here, we report the synthesis of 2D-platelets from the earth-abundant, nonlayered metal sulfide, iron pyrite (FeS2), using liquid-phase exfoliation. The resultant 2D platelets exhibit the same crystal structure as bulk pyrite but are surface passivated with a density of 14 × 1018 groups/m2. They form stable suspensions in common solvents and can be size-selected and liquid processed. Although the platelets have relatively low aspect ratios (∼5), this is in line with the anisotropic cleavage energy of bulk FeS2. We observe size-dependent changes to optical properties leading to spectroscopic metrics that can be used to estimate the dimensions of platelets. These platelets can be used to produce lithium ion battery anodes with capacities approaching 1000 mAh/g.
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Affiliation(s)
- Harneet Kaur
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Ruiyuan Tian
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Ahin Roy
- School of Chemistry, Trinity College Dublin, Dublin, D2, Ireland
| | - Mark McCrystall
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Dominik Valter Horvath
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Guillermo Lozano Onrubia
- Chair of Applied Physical Chemistry, Ruprecht-Karls University Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Ross Smith
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Manuel Ruether
- School of Chemistry, Trinity College Dublin, Dublin, D2, Ireland
| | - Aideen Griffin
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
| | - Claudia Backes
- Chair of Applied Physical Chemistry, Ruprecht-Karls University Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Valeria Nicolosi
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin, D2, Ireland
| | - Jonathan N Coleman
- CRANN & AMBER Research Centres, Trinity College Dublin, Dublin, D2, Ireland
- School of Physics, Trinity College Dublin, Dublin, D2, Ireland
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27
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Mahon OR, Browe DC, Gonzalez-Fernandez T, Pitacco P, Whelan IT, Von Euw S, Hobbs C, Nicolosi V, Cunningham KT, Mills KH, Kelly DJ, Dunne A. Nano-particle mediated M2 macrophage polarization enhances bone formation and MSC osteogenesis in an IL-10 dependent manner. Biomaterials 2020; 239:119833. [DOI: 10.1016/j.biomaterials.2020.119833] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 01/24/2020] [Accepted: 01/26/2020] [Indexed: 12/22/2022]
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28
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Pinilla S, Park SH, Fontanez K, Márquez F, Nicolosi V, Morant C. 0D-1D Hybrid Silicon Nanocomposite as Lithium-Ion Batteries Anodes. Nanomaterials (Basel) 2020; 10:nano10030515. [PMID: 32178408 PMCID: PMC7153466 DOI: 10.3390/nano10030515] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 11/16/2022]
Abstract
Lithium ion batteries (LIBs) are the enabling technology for many of the societal changes that are expected to happen in the following years. Among all the challenges for which LIBs are the key, vehicle electrification is one of the most crucial. Current battery materials cannot provide the required power densities for such applications and therefore, it makes necessary to develop new materials. Silicon is one of the proposed as next generation battery materials, but still there are challenges to overcome. Poor capacity retention is one of those drawbacks, and because it is tightly related with its high capacity, it is a problem rather difficult to address with common and scalable fabrication processes. Here we show that combining 0D and 1D silicon nanostructures, high capacity and stability can be achieved even using standard electrode fabrication processes. Capacities as high as 1200 mAh/g for more than 500 cycles at high current densities (2 A/g) were achieved with the produced hybrid 0D/1D electrodes. In this research, it was shown that while 0D nanostructures provide good strain relaxation capabilities, 1D nanomaterials contribute with enhanced cohesion and conductive matrix integrity.
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Affiliation(s)
- Sergio Pinilla
- Department of Applied Physics, Laboratory of Coatings and Nanostructures and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain;
- School of Chemistry, CRANN & AMBER, Trinity College Dublin, 02 Dublin, Ireland;
| | - Sang-Hoon Park
- School of Chemistry, CRANN & AMBER, Trinity College Dublin, 02 Dublin, Ireland;
| | - Kenneth Fontanez
- Nanomaterials Research Group, Department of Chemistry, Universidad Ana G. Méndez-Gurabo Campus, 189 St Rd km 3.3, Gurabo, PR 00778, USA; (K.F.); (F.M.)
| | - Francisco Márquez
- Nanomaterials Research Group, Department of Chemistry, Universidad Ana G. Méndez-Gurabo Campus, 189 St Rd km 3.3, Gurabo, PR 00778, USA; (K.F.); (F.M.)
| | - Valeria Nicolosi
- School of Chemistry, CRANN & AMBER, Trinity College Dublin, 02 Dublin, Ireland;
- Correspondence: (V.N.); (C.M.); Tel.: +353-1-896-4408 (V.N.); +34-91-497-4924 (C.M.)
| | - Carmen Morant
- Department of Applied Physics, Laboratory of Coatings and Nanostructures and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain;
- Correspondence: (V.N.); (C.M.); Tel.: +353-1-896-4408 (V.N.); +34-91-497-4924 (C.M.)
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29
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Boccardi M, Nicolosi V, Festari C, Bianchetti A, Cappa S, Chiasserini D, Falini A, Guerra UP, Nobili F, Padovani A, Sancesario G, Morbelli S, Parnetti L, Tiraboschi P, Muscio C, Perani D, Pizzini FB, Beltramello A, Salvini Porro G, Ciaccio M, Schillaci O, Trabucchi M, Tagliavini F, Frisoni GB. Italian consensus recommendations for a biomarker-based aetiological diagnosis in mild cognitive impairment patients. Eur J Neurol 2019; 27:475-483. [PMID: 31692118 DOI: 10.1111/ene.14117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 11/04/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Biomarkers support the aetiological diagnosis of neurocognitive disorders in vivo. Incomplete evidence is available to drive clinical decisions; available diagnostic algorithms are generic and not very helpful in clinical practice. The aim was to develop a biomarker-based diagnostic algorithm for mild cognitive impairment patients, leveraging on knowledge from recognized national experts. METHODS With a Delphi procedure, experienced clinicians making variable use of biomarkers in clinical practice and representing five Italian scientific societies (neurology - Società Italiana di Neurologia per le Demenze; neuroradiology - Associazione Italiana di Neuroradiologia; biochemistry - Società Italiana di Biochimica Clinica; psychogeriatrics - Associazione Italiana di Psicogeriatria; nuclear medicine - Associazione Italiana di Medicina Nucleare) defined the theoretical framework, relevant literature, the diagnostic issues to be addressed and the diagnostic algorithm. An N-1 majority defined consensus achievement. RESULTS The panellists chose the 2011 National Institute on Aging and Alzheimer's Association diagnostic criteria as the reference theoretical framework and defined the algorithm in seven Delphi rounds. The algorithm includes baseline clinical and cognitive assessment, blood examination, and magnetic resonance imaging with exclusionary and inclusionary roles; dopamine transporter single-photon emission computed tomography (if no/unclear parkinsonism) or metaiodobenzylguanidine cardiac scintigraphy for suspected dementia with Lewy bodies with clear parkinsonism (round VII, votes (yes-no-abstained): 3-1-1); 18 F-fluorodeoxyglucose positron emission tomography for suspected frontotemporal lobar degeneration and low diagnostic confidence of Alzheimer's disease (round VII, 4-0-1); cerebrospinal fluid for suspected Alzheimer's disease (round IV, 4-1-0); and amyloid positron emission tomography if cerebrospinal fluid was not possible/accepted (round V, 4-1-0) or inconclusive (round VI, 5-0-0). CONCLUSIONS These consensus recommendations can guide clinicians in the biomarker-based aetiological diagnosis of mild cognitive impairment, whilst guidelines cannot be defined with evidence-to-decision procedures due to incomplete evidence.
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Affiliation(s)
- M Boccardi
- IRCCS Istituto Centro S.Giovanni di Dio-Fatebenefratelli, Brescia, Italy.,University of Geneva, Geneva, Switzerland
| | - V Nicolosi
- IRCCS Istituto Centro S.Giovanni di Dio-Fatebenefratelli, Brescia, Italy
| | - C Festari
- IRCCS Istituto Centro S.Giovanni di Dio-Fatebenefratelli, Brescia, Italy.,University of Brescia, Brescia, Italy
| | - A Bianchetti
- Istituto Clinico S. Anna, Brescia, Italy.,Italian Psychogeriatric Association (AIP), Brescia, Italy
| | - S Cappa
- IRCCS Istituto Centro S.Giovanni di Dio-Fatebenefratelli, Brescia, Italy.,University Institute of Higher Studies, Pavia, Italy.,Italian Society of Neurology for the Study of the Dementias (SINdem), Milan, Italy
| | - D Chiasserini
- University of Perugia, Perugia, Italy.,Italian Society of Clinical Biochemistry and Clinical Molecular Biology - Laboratory Medicine (SIBioC), Rimini, Italy
| | - A Falini
- IRCCS San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy.,Italian Association of Neuroradiology (AINR), Milan, Italy
| | - U P Guerra
- Poliambulanza Foundation, Brescia, Italy.,Italian Association of Nuclear Medicine (AIMN), Bari, Italy
| | - F Nobili
- Italian Association of Nuclear Medicine (AIMN), Bari, Italy.,University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - A Padovani
- Italian Society of Neurology for the Study of the Dementias (SINdem), Milan, Italy.,Brescia University Hospital, Brescia, Italy
| | - G Sancesario
- Italian Society of Clinical Biochemistry and Clinical Molecular Biology - Laboratory Medicine (SIBioC), Rimini, Italy.,IRCCS Santa Lucia Foundation, Neuroimmunology Unit Via Ardeatina 354, Rome, Italy
| | - S Morbelli
- University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - L Parnetti
- Ospedale S. Maria della Misericordia, University of Perugia, Perugia, Italy
| | | | - C Muscio
- IRCCS 'Carlo Besta', Milan, Italy
| | - D Perani
- IRCCS San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | | | - A Beltramello
- Verona University Hospital, Verona, Italy.,IRCCS 'Sacro Cuore-Don Calabria', Negrar, Verona, Italy
| | | | - M Ciaccio
- Italian Society of Clinical Biochemistry and Clinical Molecular Biology - Laboratory Medicine (SIBioC), Rimini, Italy.,University of Palermo, Palermo, Italy
| | - O Schillaci
- University Tor Vergata, Rome, Italy.,IRCCS-Neuromed, Pozzilli, Italy
| | - M Trabucchi
- Italian Psychogeriatric Association (AIP), Brescia, Italy.,University Tor Vergata, Rome, Italy
| | | | - G B Frisoni
- IRCCS Istituto Centro S.Giovanni di Dio-Fatebenefratelli, Brescia, Italy.,University of Geneva, Geneva, Switzerland
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30
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Solazzo M, O'Brien FJ, Nicolosi V, Monaghan MG. The rationale and emergence of electroconductive biomaterial scaffolds in cardiac tissue engineering. APL Bioeng 2019; 3:041501. [PMID: 31650097 PMCID: PMC6795503 DOI: 10.1063/1.5116579] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023] Open
Abstract
The human heart possesses minimal regenerative potential, which can often lead to chronic heart failure following myocardial infarction. Despite the successes of assistive support devices and pharmacological therapies, only a whole heart transplantation can sufficiently address heart failure. Engineered scaffolds, implantable patches, and injectable hydrogels are among the most promising solutions to restore cardiac function and coax regeneration; however, current biomaterials have yet to achieve ideal tissue regeneration and adequate integration due a mismatch of material physicochemical properties. Conductive fillers such as graphene, carbon nanotubes, metallic nanoparticles, and MXenes and conjugated polymers such as polyaniline, polypyrrole, and poly(3,4-ethylendioxythiophene) can possibly achieve optimal electrical conductivities for cardiac applications with appropriate suitability for tissue engineering approaches. Many studies have focused on the use of these materials in multiple fields, with promising effects on the regeneration of electrically active biological tissues such as orthopedic, neural, and cardiac tissue. In this review, we critically discuss the role of heart electrophysiology and the rationale toward the use of electroconductive biomaterials for cardiac tissue engineering. We present the emerging applications of these smart materials to create supportive platforms and discuss the crucial role that electrical stimulation has been shown to exert in maturation of cardiac progenitor cells.
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31
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Amorim Graf A, Large MJ, Ogilvie SP, Rong Y, Lynch PJ, Fratta G, Ray S, Shmeliov A, Nicolosi V, Arenal R, King AAK, Dalton AB. Sonochemical edge functionalisation of molybdenum disulfide. Nanoscale 2019; 11:15550-15560. [PMID: 31393511 DOI: 10.1039/c9nr04974f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Liquid-phase exfoliation (LPE) has been shown to be capable of producing large quantities of high-quality dispersions suitable for processing into subsequent applications. LPE typically requires surfactants for aqueous dispersions or organic solvents with high boiling point. However, they have major drawbacks such as toxicity, aggregation during solvent evaporation or the presence of residues. Here, dispersions of molybdenum disulfide in acetone are prepared and show much higher concentration and stability than predicted by Hansen parameter analysis. Aiming to understand these enhanced properties, the nanosheets were characterised using UV-visible spectroscopy, zeta potential measurements, atomic force microscopy, Raman spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and scanning transmission microscopy combined with spatially-resolved electron energy loss spectroscopy. Also, the performance of the MoS2 nanosheets exfoliated in acetone was compared to that of those exfoliated in isopropanol as a catalyst for the hydrogen evolution reaction. The conclusion from the chemical characterisation was that MoS2 nanosheets exfoliated in acetone have an oxygen edge functionalisation, in the form of molybdenum oxides, changing its interaction with solvents and explaining the observed high-quality and stability of the resulting dispersion in a low boiling point solvent. Exfoliation in acetone could potentially be applied as a pretreatment to modify the solubility of MoS2 by edge functionalisation.
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Affiliation(s)
| | | | | | | | | | | | - Santanu Ray
- Surface Analysis Laboratory, University of Brighton, Brighton, BN2 4GJ, UK
| | - Aleksey Shmeliov
- Trinity College Dublin, School of Chemistry, CRANN, AMBER & I-Form, Dublin 2, Dublin, Ireland
| | - Valeria Nicolosi
- Trinity College Dublin, School of Chemistry, CRANN, AMBER & I-Form, Dublin 2, Dublin, Ireland
| | - Raul Arenal
- Laboratorio de Microscopias Avanzadas, Instituto de Nanociencia de Aragón, Universidad de Zaragoza, 50018 Zaragoza, Spain and ARAID Foundation, 50018 Zaragoza, Spain and Instituto de Ciencias de Materiales de Aragon, CSIC-U, de Zaragoza, 50009 Zaragoza, Spain
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32
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Zhang CJ, McKeon L, Kremer MP, Park SH, Ronan O, Seral-Ascaso A, Barwich S, Coileáin CÓ, McEvoy N, Nerl HC, Anasori B, Coleman JN, Gogotsi Y, Nicolosi V. Additive-free MXene inks and direct printing of micro-supercapacitors. Nat Commun 2019; 10:1795. [PMID: 30996224 PMCID: PMC6470171 DOI: 10.1038/s41467-019-09398-1] [Citation(s) in RCA: 258] [Impact Index Per Article: 51.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/08/2019] [Indexed: 11/26/2022] Open
Abstract
Direct printing of functional inks is critical for applications in diverse areas including electrochemical energy storage, smart electronics and healthcare. However, the available printable ink formulations are far from ideal. Either surfactants/additives are typically involved or the ink concentration is low, which add complexity to the manufacturing and compromises the printing resolution. Here, we demonstrate two types of two-dimensional titanium carbide (Ti3C2Tx) MXene inks, aqueous and organic in the absence of any additive or binary-solvent systems, for extrusion printing and inkjet printing, respectively. We show examples of all-MXene-printed structures, such as micro-supercapacitors, conductive tracks and ohmic resistors on untreated plastic and paper substrates, with high printing resolution and spatial uniformity. The volumetric capacitance and energy density of the all-MXene-printed micro-supercapacitors are orders of magnitude greater than existing inkjet/extrusion-printed active materials. The versatile direct-ink-printing technique highlights the promise of additive-free MXene inks for scalable fabrication of easy-to-integrate components of printable electronics. Printing functional inks is attractive for applications in electrochemical energy storage and smart electronics, among others. Here the authors report highly concentrated, additive-free, aqueous and organic MXene-based inks that can be used for high-resolution extrusion and inkjet printing.
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Affiliation(s)
- Chuanfang John Zhang
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
| | - Lorcan McKeon
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Matthias P Kremer
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.,I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Sang-Hoon Park
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Oskar Ronan
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Andrés Seral-Ascaso
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sebastian Barwich
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Cormac Ó Coileáin
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Niall McEvoy
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Hannah C Nerl
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Babak Anasori
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Jonathan N Coleman
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA.
| | - Valeria Nicolosi
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland. .,I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Ireland.
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33
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Boland JB, Harvey A, Tian R, Hanlon D, Vega-Mayoral V, Szydlowska B, Griffin A, Stimpel-Lindner T, Jaskaniec S, Nicolosi V, Duesberg G, Coleman JN. Liquid phase exfoliation of MoO 2 nanosheets for lithium ion battery applications. Nanoscale Adv 2019; 1:1560-1570. [PMID: 36132600 PMCID: PMC9419613 DOI: 10.1039/c8na00241j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/02/2019] [Indexed: 05/10/2023]
Abstract
Molybdenum dioxide (MoO2) is a layered material which shows promise for a number of applications in the electrochemical energy storage arena. Mostly studied as a bulk layered material, MoO2 has not previously been exfoliated in large quantities. Here we demonstrate the liquid phase exfoliation of MoO2 in the solvent isopropanol, yielding reasonable amounts of good quality nanosheets. However, we found that, when dispersed in isopropanol under ambient conditions, MoO2 nanosheets are gradually oxidized to higher oxides such as MoO3 over a period of days. Conversely, if the nanosheets are processed into dried films immediately after exfoliation, and before oxidation has had a chance to progress, the nanosheets are relatively stable under ambient conditions, remaining unoxidised unless the films are heated. We also found that MoO2 nanosheets can be size selected by controlled centrifugation and show size-dependent optical properties. This allows us to propose spectroscopic metrics which allow concentration- and size-estimation from extinction spectra. Finally, we found that liquid-exfoliated MoO2 nanosheets could be used to produce lithium ion battery anodes with capacities of up to 1140 mA h g-1.
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Affiliation(s)
- John B Boland
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Andrew Harvey
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Ruiyuan Tian
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Damien Hanlon
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Victor Vega-Mayoral
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Beata Szydlowska
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Aideen Griffin
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
| | - Tanja Stimpel-Lindner
- Universität der Bundeswehr München Werner-Heisenberg-Weg 39 München D-85577 Neubiberg Germany
| | - Sonia Jaskaniec
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Chemistry, Trinity College Dublin Dublin 2 Ireland
| | - Valeria Nicolosi
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Chemistry, Trinity College Dublin Dublin 2 Ireland
| | - Georg Duesberg
- Universität der Bundeswehr München Werner-Heisenberg-Weg 39 München D-85577 Neubiberg Germany
| | - Jonathan N Coleman
- CRANN & AMBER Research Centers, Trinity College Dublin Dublin 2 Ireland
- School of Physics, Trinity College Dublin Dublin 2 Ireland
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Gonzalez-Fernandez T, Rathan S, Hobbs C, Pitacco P, Freeman FE, Cunniffe GM, Dunne NJ, McCarthy HO, Nicolosi V, O'Brien FJ, Kelly DJ. Pore-forming bioinks to enable spatio-temporally defined gene delivery in bioprinted tissues. J Control Release 2019; 301:13-27. [PMID: 30853527 DOI: 10.1016/j.jconrel.2019.03.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/02/2019] [Accepted: 03/06/2019] [Indexed: 12/17/2022]
Abstract
The regeneration of complex tissues and organs remains a major clinical challenge. With a view towards bioprinting such tissues, we developed a new class of pore-forming bioink to spatially and temporally control the presentation of therapeutic genes within bioprinted tissues. By blending sacrificial and stable hydrogels, we were able to produce bioinks whose porosity increased with time following printing. When combined with amphipathic peptide-based plasmid DNA delivery, these bioinks supported enhanced non-viral gene transfer to stem cells in vitro. By modulating the porosity of these bioinks, it was possible to direct either rapid and transient (pore-forming bioinks), or slower and more sustained (solid bioinks) transfection of host or transplanted cells in vivo. To demonstrate the utility of these bioinks for the bioprinting of spatially complex tissues, they were next used to zonally position stem cells and plasmids encoding for either osteogenic (BMP2) or chondrogenic (combination of TGF-β3, BMP2 and SOX9) genes within networks of 3D printed thermoplastic fibers to produce mechanically reinforced, gene activated constructs. In vivo, these bioprinted tissues supported the development of a vascularised, bony tissue overlaid by a layer of stable cartilage. When combined with multiple-tool biofabrication strategies, these gene activated bioinks can enable the bioprinting of a wide range of spatially complex tissues.
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Affiliation(s)
- T Gonzalez-Fernandez
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland
| | - S Rathan
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - C Hobbs
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; School of Physics, Trinity College Dublin, Ireland; Centre for Research of Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Ireland
| | - P Pitacco
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - F E Freeman
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - G M Cunniffe
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - N J Dunne
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Ireland; School of Mechanical and Manufacturing Engineering, Dublin City University, Ireland; School of Pharmacy, Queen's University Belfast, UK
| | - H O McCarthy
- School of Pharmacy, Queen's University Belfast, UK
| | - V Nicolosi
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; School of Physics, Trinity College Dublin, Ireland; Centre for Research of Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Ireland
| | - F J O'Brien
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in, Ireland
| | - D J Kelly
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in, Ireland.
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35
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Zhang CJ, Park SH, Seral-Ascaso A, Barwich S, McEvoy N, Boland CS, Coleman JN, Gogotsi Y, Nicolosi V. High capacity silicon anodes enabled by MXene viscous aqueous ink. Nat Commun 2019; 10:849. [PMID: 30787274 PMCID: PMC6382913 DOI: 10.1038/s41467-019-08383-y] [Citation(s) in RCA: 194] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 12/20/2018] [Indexed: 11/26/2022] Open
Abstract
The ever-increasing demands for advanced lithium-ion batteries have greatly stimulated the quest for robust electrodes with a high areal capacity. Producing thick electrodes from a high-performance active material would maximize this parameter. However, above a critical thickness, solution-processed films typically encounter electrical/mechanical problems, limiting the achievable areal capacity and rate performance as a result. Herein, we show that two-dimensional titanium carbide or carbonitride nanosheets, known as MXenes, can be used as a conductive binder for silicon electrodes produced by a simple and scalable slurry-casting technique without the need of any other additives. The nanosheets form a continuous metallic network, enable fast charge transport and provide good mechanical reinforcement for the thick electrode (up to 450 µm). Consequently, very high areal capacity anodes (up to 23.3 mAh cm−2) have been demonstrated. Developing thick electrodes could enable high-energy-density Li-ion batteries, however, above a critical thickness, the mass transport issues become dominating. Here the authors show that MXene can serve as a conductive binder leading to thick silicon anodes (up to 450 µm) with high areal capacity.
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Affiliation(s)
- Chuanfang John Zhang
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
| | - Sang-Hoon Park
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Andrés Seral-Ascaso
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sebastian Barwich
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Niall McEvoy
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Conor S Boland
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland.,School of Mathematical and Physical Sciences, University of Sussex, Sussex, BN1 9QH, UK
| | - Jonathan N Coleman
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Physics, Trinity College Dublin, Dublin 2, Ireland.
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA.
| | - Valeria Nicolosi
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
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Chiappiniello A, Tarducci R, Muscio C, Frisoni G, Bruzzone M, Bozzali M, Perani D, Tiraboschi P, Nigri A, Ambrosi C, Caulo M, Chipi E, Chiti S, Fainardi E, Ferraro S, Festari C, Gasparotti R, Ginestroni A, Giulietti G, Mascaro L, Navarra R, Nicolosi V, Parnetti L, Rosazza C, Serra L, Tagliavini F, Jovicich J. 22. Multicentric test-retest reproducibility of human hippocampal volumes with FreeSurfer 6.0: A comparison between standard and longitudinal hippocampal subfields segmentation streams applied to 3D T1, 3D FLAIR and high-resolution 2D T2 neuroimaging. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Tang H, Li W, Pan L, Cullen CP, Liu Y, Pakdel A, Long D, Yang J, McEvoy N, Duesberg GS, Nicolosi V, Zhang C(J. In Situ Formed Protective Barrier Enabled by Sulfur@Titanium Carbide (MXene) Ink for Achieving High-Capacity, Long Lifetime Li-S Batteries. Adv Sci (Weinh) 2018; 5:1800502. [PMID: 30250792 PMCID: PMC6145260 DOI: 10.1002/advs.201800502] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 04/23/2018] [Indexed: 05/22/2023]
Abstract
Sulfur (S) is an attractive cathode material with advantages including high theoretical capacity and low cost. However, issues such as the lithium polysulfide shuttle effect and its insulating properties greatly limit the future applications of lithium-sulfur (Li-S) batteries. Here, a viscous aqueous ink with nanoscale S uniformly decorated on the polar, metallically conductive titanium carbide MXene nanosheets (S@Ti3C2T x ) is reported to address these issues. Importantly, it is observed that the conductive Ti3C2T x mediator efficiently chemisorbs the soluble polysulfides and converts them into thiosulfate/sulfate. The in situ formed sulfate complex layer acts as a thick protective barrier, which significantly retards the shuttling of polysulfides upon cycling and improves the sulfur utilization. Consequently, the binder-free, robust, highly electrically conductive composite film exhibits outstanding electrochemical performance, including high capacities (1244-1350 mAh g-1), excellent rate handling, and impressive cycling stability (0.035-0.048% capacity loss per cycle), surpassing the best MXene-S batteries known. The fabrication of a pouch cell based on the freestanding S@Ti3C2T x film is also reported. The prototype device showcases high capacities and excellent mechanical flexibility. Considering the broad family of MXenes and their unique roles in immobilizing the polysulfides, various S@MXene composites can be similarly fabricated with promising Li+ storage capability and long lifetime performance.
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Affiliation(s)
- Huan Tang
- College of Materials Science and Engineering, and Jiangsu Collaborative Innovation Center for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing210009P. R. China
| | - Wenlong Li
- College of Materials Science and Engineering, and Jiangsu Collaborative Innovation Center for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing210009P. R. China
| | - Limei Pan
- College of Materials Science and Engineering, and Jiangsu Collaborative Innovation Center for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing210009P. R. China
| | - Conor P. Cullen
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
| | - Yu Liu
- School of Chemical EngineeringEast China University of Science and TechnologyShanghai200237P. R. China
| | - Amir Pakdel
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
| | - Donghui Long
- School of Chemical EngineeringEast China University of Science and TechnologyShanghai200237P. R. China
| | - Jian Yang
- College of Materials Science and Engineering, and Jiangsu Collaborative Innovation Center for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing210009P. R. China
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
| | - Georg S. Duesberg
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
- Institute of PhysicsEIT 2Faculty of Electrical Engineering and Information TechnologyUniversität der BundeswehrWerner‐Heisenberg‐Weg 39MünchenNeubiberg85577Germany
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
| | - Chuanfang (John) Zhang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio‐Engineering Research Centre (AMBER)School of ChemistryTrinity College DublinDublin 2Ireland
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Rydzek G, Pakdel A, Witecka A, Awang Shri DN, Gaudière F, Nicolosi V, Mokarian-Tabari P, Schaaf P, Boulmedais F, Ariga K. pH-Responsive Saloplastics Based on Weak Polyelectrolytes: From Molecular Processes to Material Scale Properties. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00609] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gaulthier Rydzek
- World Premier International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Amir Pakdel
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Agnieszka Witecka
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | | | - Fabien Gaudière
- CNRS, Institut Charles Sadron UPR 22, Université de Strasbourg, F-67000 Strasbourg, France
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Parvaneh Mokarian-Tabari
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), School of Chemistry, Trinity College Dublin, Dublin, Ireland
| | - Pierre Schaaf
- UMR-S 1121, Biomatériaux et Bioingénierie, Institut National de la Santé et de la Recherche Médicale, 11 rue Humann, Cedex 67085 Strasbourg, France
| | - Fouzia Boulmedais
- CNRS, Institut Charles Sadron UPR 22, Université de Strasbourg, F-67000 Strasbourg, France
| | - Katsuhiko Ariga
- World Premier International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-0827, Japan
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Canavan M, Daly D, Rummel A, McCarthy EK, McAuley C, Nicolosi V. Novel in-situ lamella fabrication technique for in-situ TEM. Ultramicroscopy 2018; 190:21-29. [PMID: 29660687 DOI: 10.1016/j.ultramic.2018.03.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 03/22/2018] [Accepted: 03/28/2018] [Indexed: 11/19/2022]
Abstract
In-situ transmission electron microscopy is rapidly emerging as the premier technique for characterising materials in a dynamic state on the atomic scale. The most important aspect of in-situ studies is specimen preparation. Specimens must be electron transparent and representative of the material in its operational state, amongst others. Here, a novel fabrication technique for the facile preparation of lamellae for in-situ transmission electron microscopy experimentation using focused ion beam milling is developed. This method involves the use of rotating microgrippers during the lift-out procedure, as opposed to the traditional micromanipulator needle and platinum weld. Using rotating grippers, and a unique adhesive substance, lamellae are mounted onto a MEMS device for in-situ TEM annealing experiments. We demonstrate how this technique can be used to avoid platinum deposition as well as minimising damage to the MEMS device during the thinning process. Our technique is both a cost effective and readily implementable alternative to the current generation of preparation methods for in-situ liquid, electrical, mechanical and thermal experimentation within the TEM as well as traditional cross-sectional lamella preparation.
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Affiliation(s)
- Megan Canavan
- School of Physics, Trinity College, Dublin, Ireland; CRANN, TCD - Trinity College, Dublin, Ireland; AMBER, TCD - Trinity College, Dublin, Ireland
| | - Dermot Daly
- CRANN, TCD - Trinity College, Dublin, Ireland; AMBER, TCD - Trinity College, Dublin, Ireland
| | | | - Eoin K McCarthy
- CRANN, TCD - Trinity College, Dublin, Ireland; AMBER, TCD - Trinity College, Dublin, Ireland
| | - Cathal McAuley
- CRANN, TCD - Trinity College, Dublin, Ireland; AMBER, TCD - Trinity College, Dublin, Ireland
| | - Valeria Nicolosi
- CRANN, TCD - Trinity College, Dublin, Ireland; AMBER, TCD - Trinity College, Dublin, Ireland; School of Chemistry, Trinity College, Dublin, Ireland.
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40
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Jaśkaniec S, Hobbs C, Seral-Ascaso A, Coelho J, Browne MP, Tyndall D, Sasaki T, Nicolosi V. Low-temperature synthesis and investigation into the formation mechanism of high quality Ni-Fe layered double hydroxides hexagonal platelets. Sci Rep 2018; 8:4179. [PMID: 29520108 PMCID: PMC5843585 DOI: 10.1038/s41598-018-22630-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 02/26/2018] [Indexed: 11/21/2022] Open
Abstract
This paper describes the wet-chemistry synthesis of highly crystalline hexagonal flakes of Ni-Fe layered double hydroxide (LDH) produced at temperature as low as 100 °C. The flakes with diameter in the range of 0.5-1.5 μm and the thickness between 15 and 20 nm were obtained by homogeneous precipitation method with the use of triethanolamine (TEA) and urea. By analyzing the intermediate products, it is suggested that, differently from previous reports, a thermodynamically metastable iron oxyhydroxide and Ni-TEA complex are firstly formed at room temperature. Subsequently, when the mixture is heated to 100 °C and the pH increases due to the thermal decomposition of urea, Ni2+ and Fe3+ are slowly released and then recombine, thus leading to formation of pure, highly-crystalline Ni-Fe LDH flakes. This material showed promising results as an electrocatalyst in oxygen evolution reaction (OER) providing an overpotential value of 0.36 V.
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Affiliation(s)
- Sonia Jaśkaniec
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland
| | - Christopher Hobbs
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland
- School of Physics, Trinity College Dublin, Dublin, Ireland
| | - Andrés Seral-Ascaso
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland
- School of Physics, Trinity College Dublin, Dublin, Ireland
| | - João Coelho
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland
| | - Michelle P Browne
- School of Chemistry and Chemical Engineering, Queens University Belfast, Belfast, United Kingdom
| | - Daire Tyndall
- School of Chemistry, Trinity College Dublin, Dublin, Ireland
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland
| | | | - Valeria Nicolosi
- School of Chemistry, Trinity College Dublin, Dublin, Ireland.
- CRANN&AMBER, Trinity College Dublin, Dublin, Ireland.
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Jadwiszczak J, O’Callaghan C, Zhou Y, Fox DS, Weitz E, Keane D, Cullen CP, O’Reilly I, Downing C, Shmeliov A, Maguire P, Gough JJ, McGuinness C, Ferreira MS, Bradley AL, Boland JJ, Duesberg GS, Nicolosi V, Zhang H. Oxide-mediated recovery of field-effect mobility in plasma-treated MoS 2. Sci Adv 2018; 4:eaao5031. [PMID: 29511736 PMCID: PMC5837433 DOI: 10.1126/sciadv.aao5031] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 01/24/2018] [Indexed: 05/22/2023]
Abstract
Precise tunability of electronic properties of two-dimensional (2D) nanomaterials is a key goal of current research in this field of materials science. Chemical modification of layered transition metal dichalcogenides leads to the creation of heterostructures of low-dimensional variants of these materials. In particular, the effect of oxygen-containing plasma treatment on molybdenum disulfide (MoS2) has long been thought to be detrimental to the electrical performance of the material. We show that the mobility and conductivity of MoS2 can be precisely controlled and improved by systematic exposure to oxygen/argon plasma and characterize the material using advanced spectroscopy and microscopy. Through complementary theoretical modeling, which confirms conductivity enhancement, we infer the role of a transient 2D substoichiometric phase of molybdenum trioxide (2D-MoO x ) in modulating the electronic behavior of the material. Deduction of the beneficial role of MoO x will serve to open the field to new approaches with regard to the tunability of 2D semiconductors by their low-dimensional oxides in nano-modified heterostructures.
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Affiliation(s)
- Jakub Jadwiszczak
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Colin O’Callaghan
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Yangbo Zhou
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Materials Science and Engineering, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Daniel S. Fox
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Eamonn Weitz
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Darragh Keane
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Conor P. Cullen
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Ian O’Reilly
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Clive Downing
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Aleksey Shmeliov
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Pierce Maguire
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - John J. Gough
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
| | - Cormac McGuinness
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
| | - Mauro S. Ferreira
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - A. Louise Bradley
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
| | - John J. Boland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Georg S. Duesberg
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Hongzhou Zhang
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre, Trinity College Dublin, Dublin 2, Ireland
- Corresponding author.
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Szczerba W, Żukrowski J, Przybylski M, Sikora M, Safonova O, Shmeliov A, Nicolosi V, Schneider M, Granath T, Oppmann M, Straßer M, Mandel K. Pushing up the magnetisation values for iron oxide nanoparticles via zinc doping: X-ray studies on the particle's sub-nano structure of different synthesis routes. Phys Chem Chem Phys 2018; 18:25221-25229. [PMID: 27711457 DOI: 10.1039/c6cp04221j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The maximum magnetisation (saturation magnetisation) obtainable for iron oxide nanoparticles can be increased by doping the nanocrystals with non-magnetic elements such as zinc. Herein, we closely study how only slightly different synthesis approaches towards such doped nanoparticles strongly influence the resulting sub-nano/atomic structure. We compare two co-precipitation approaches, where we only vary the base (NaOH versus NH3), and a thermal decomposition route. These methods are the most commonly applied ones for synthesising doped iron oxide nanoparticles. The measurable magnetisation change upon zinc doping is about the same for all systems. However, the sub-nano structure, which we studied with Mössbauer and X-ray absorption near edge spectroscopy, differs tremendously. We found evidence that a much more complex picture has to be drawn regarding what happens upon Zn doping compared to what textbooks tell us about the mechanism. Our work demonstrates that it is crucial to study the obtained structures very precisely when "playing" with the atomic order in iron oxide nanocrystals.
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Affiliation(s)
- Wojciech Szczerba
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany. and Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Jan Żukrowski
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Marek Przybylski
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland and Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Marcin Sikora
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Olga Safonova
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Aleksey Shmeliov
- Trinity College Dublin, School of Chemistry, School of Physics & CRANN, Dublin 2, Ireland
| | - Valeria Nicolosi
- Trinity College Dublin, School of Chemistry, School of Physics & CRANN, Dublin 2, Ireland
| | - Michael Schneider
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany. and Department of Chemical Technology of Materials Synthesis, University of Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Tim Granath
- Department of Chemical Technology of Materials Synthesis, University of Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany
| | - Maximilian Oppmann
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Translational Center "Regenerative Therapies for Oncology and Musculoskeletal Diseases", Roentgenring 11, 97070 Wuerzburg, Germany
| | - Marion Straßer
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany.
| | - Karl Mandel
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Wuerzburg, Germany. and Department of Chemical Technology of Materials Synthesis, University of Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany
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Mahon OR, O'Hanlon S, Cunningham CC, McCarthy GM, Hobbs C, Nicolosi V, Kelly DJ, Dunne A. Orthopaedic implant materials drive M1 macrophage polarization in a spleen tyrosine kinase- and mitogen-activated protein kinase-dependent manner. Acta Biomater 2018; 65:426-435. [PMID: 29104084 DOI: 10.1016/j.actbio.2017.10.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/25/2017] [Accepted: 10/27/2017] [Indexed: 12/17/2022]
Abstract
Total joint replacements (TJR) are costly procedures required to relieve pain and restore function in patients suffering from end-stage arthritis. Despite great progress in the development and durability of TJRs, the generation of prosthesis-associated wear particles over time leads to an inflammatory cascade which culminates in periprosthetic osteolysis. Studies suggest that wear particles drive the polarization/differentiation of immature macrophages towards a pro-inflammatory M1 phenotype rather than an anti-inflammatory M2 phenotype associated with normal bone and wound healing. This, in turn, contributes to the initiation of peri-implant inflammation. As a result, modulating M1 macrophage cytokine production has been recognised as a viable therapeutic option. The aim of this study was to examine the impact of hydroxyapatite (HA) and poly(methyl methacrylate) (PMMA) particles on human macrophage polarization by comparing their effect on M1/M2-associated gene expression using real-time PCR. Furthermore, using immunoblotting to assess kinase activation, we sought to identify the intracellular signalling molecules activated by PMMA/HA particles and to determine whether pharmacological blockade of these molecules impacts on macrophage phenotype and cytokine production as measured by ELISA. We report that wear particles preferentially polarize macrophages towards an M1 phenotype, an effect that is dependent on activation of the membrane proximal kinase, Syk and members of the mitogen-activated protein kinase (MAPK) family of signalling molecules. Pre-treatment of macrophages with Syk inhibitors (R788/piceatannol) or MAPK inhibitors (SB203580 and PD98059), not only prevents M1 polarization, but also attenuates production of key pro-inflammatory mediators that have been specifically implicated in periprosthetic osteolysis and osteoclast differentiation. STATEMENT OF SIGNIFICANCE It is now well established that wear-debris particles from implanted materials drive deleterious inflammatory responses which can eventually lead to implant loosening. In this study, we provide further insight into the specific cellular pathways activated by wear particles in primary human immune cells. We demonstrate that PMMA bone cement and hydroxyapatite, a commonly used biomaterial, drive the polarization of macrophages towards an inflammatory phenotype and identify the specific signalling molecules that are activated in this process. Pre-treatment of macrophages with pharmacological inhibitors of these molecules in turn prevents macrophage polarization and dampens inflammatory cytokine production. Hence these signalling molecules represent potential therapeutic targets to treat or possibly prevent particulate induced osteolysis.
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Pinilla S, Machín A, Park SH, Arango JC, Nicolosi V, Márquez-Linares F, Morant C. TiO 2-Based Nanomaterials for the Production of Hydrogen and the Development of Lithium-Ion Batteries. J Phys Chem B 2017; 122:972-983. [PMID: 29058914 DOI: 10.1021/acs.jpcb.7b07130] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The photocatalytic activity of different titanium oxide nanowires containing gold (Au@TiO2NWs), and gold-graphene (Au@TiO2NWs-graphene), was evaluated by studying the reaction of hydrogen production by water splitting under UV-vis light. The composites showed high surface areas, with values above 300 m2 per gram, even after the incorporation of gold and graphene on the surface of titanium oxide nanowires. The highest hydrogen production of Au@TiO2NWs was 1436 μmol h-1 g-1, under irradiation at 400 nm, and with a gold loading of 10 wt %. This photocatalytic activity was 11.5 times greater than that shown by the unmodified TiO2NWs. For the Au@TiO2NWs-graphene composites, the highest hydrogen amount obtained was 1689 μmol h-1 g-1, at loadings of 10 and 1 wt % of gold and graphene, respectively. The photocatalytic activity of the gold-graphene compounds was 1.2 times greater than that shown by the titanium oxide catalysts and 13.5 times higher than the bare TiO2NWs. Even at wavelengths greater than 500 nm, the compounds exhibited yields of hydrogen above 1000 μmol h-1 g-1, demonstrating the high catalytic activity of the compounds. In addition, TiO2-based materials are of great interest for energy storage and conversion devices, in particular for rechargeable lithium ion batteries. TiO2 has a significant advantage due to its low volume change (<4%) during the Li ion insertion/desertion process, short paths for fast lithium ion diffusion, and large exposed surface, offering more lithium insertion channels. However, the relatively low theoretical capacity and electrical conductivity of TiO2 greatly hamper its practical application. In this work, free-standing electrodes composed by TiO2NWs and carbon nanotubes, CNT@TiO2NWs, were used as anode materials for Li-ion batteries. As a result, the electronic conductivity and mechanical properties of the composite were greatly improved and a good cycling performance was obtained in these batteries. This research shows the potential of TiO2-based materials for the development of new catalysts for hydrogen production and energy storage systems.
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Affiliation(s)
- Sergio Pinilla
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid , 28049 Madrid, Spain
| | - Abniel Machín
- School of Natural Sciences and Technology, Universidad del Turabo , Gurabo, Puerto Rico PR00778, United States
| | - Sang-Hoon Park
- CRANN and AMBER Research Centers, Trinity College Dublin , Dublin 2, Ireland
| | - Juan C Arango
- School of Natural Sciences and Technology, Universidad del Turabo , Gurabo, Puerto Rico PR00778, United States
| | - Valeria Nicolosi
- CRANN and AMBER Research Centers, Trinity College Dublin , Dublin 2, Ireland
| | - Francisco Márquez-Linares
- School of Natural Sciences and Technology, Universidad del Turabo , Gurabo, Puerto Rico PR00778, United States
| | - Carmen Morant
- Department of Applied Physics and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid , 28049 Madrid, Spain
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Zhang CJ, Anasori B, Seral-Ascaso A, Park SH, McEvoy N, Shmeliov A, Duesberg GS, Coleman JN, Gogotsi Y, Nicolosi V. Transparent, Flexible, and Conductive 2D Titanium Carbide (MXene) Films with High Volumetric Capacitance. Adv Mater 2017; 29:1702678. [PMID: 28741695 DOI: 10.1002/adma.201702678] [Citation(s) in RCA: 292] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 06/11/2017] [Indexed: 05/21/2023]
Abstract
2D transition-metal carbides and nitrides, known as MXenes, have displayed promising properties in numerous applications, such as energy storage, electromagnetic interference shielding, and catalysis. Titanium carbide MXene (Ti3 C2 Tx ), in particular, has shown significant energy-storage capability. However, previously, only micrometer-thick, nontransparent films were studied. Here, highly transparent and conductive Ti3 C2 Tx films and their application as transparent, solid-state supercapacitors are reported. Transparent films are fabricated via spin-casting of Ti3 C2 Tx nanosheet colloidal solutions, followed by vacuum annealing at 200 °C. Films with transmittance of 93% (≈4 nm) and 29% (≈88 nm) demonstrate DC conductivity of ≈5736 and ≈9880 S cm-1 , respectively. Such highly transparent, conductive Ti3 C2 Tx films display impressive volumetric capacitance (676 F cm-3 ) combined with fast response. Transparent solid-state, asymmetric supercapacitors (72% transmittance) based on Ti3 C2 Tx and single-walled carbon nanotube (SWCNT) films are also fabricated. These electrodes exhibit high capacitance (1.6 mF cm-2 ) and energy density (0.05 µW h cm-2 ), and long lifetime (no capacitance decay over 20 000 cycles), exceeding that of graphene or SWCNT-based transparent supercapacitor devices. Collectively, the Ti3 C2 Tx films are among the state-of-the-art for future transparent, conductive, capacitive electrodes, and translate into technologically viable devices for next-generation wearable, portable electronics.
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Affiliation(s)
- Chuanfang John Zhang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Babak Anasori
- Department of Materials Science and Engineering, A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - Andrés Seral-Ascaso
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sang-Hoon Park
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Aleksey Shmeliov
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Georg S Duesberg
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr, 85577, Neubiberg, München, Germany
| | - Jonathan N Coleman
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Yury Gogotsi
- Department of Materials Science and Engineering, A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
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Zhang CJ, Park SH, Ronan O, Harvey A, Seral-Ascaso A, Lin Z, McEvoy N, Boland CS, Berner NC, Duesberg GS, Rozier P, Coleman JN, Nicolosi V. Enabling Flexible Heterostructures for Li-Ion Battery Anodes Based on Nanotube and Liquid-Phase Exfoliated 2D Gallium Chalcogenide Nanosheet Colloidal Solutions. Small 2017; 13:1701677. [PMID: 28692755 DOI: 10.1002/smll.201701677] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Indexed: 05/23/2023]
Abstract
2D metal chalcogenide (MC) nanosheets (NS) have displayed high capacities as lithium-ion battery (LiB) anodes. Nevertheless, their complicated synthesis routes coupled with low electronic conductivity greatly limit them as promising LiB electrode material. Here, this work reports a facile single-walled carbon nanotube (SWCNT) percolating strategy for efficiently maximizing the electrochemical performances of gallium chalcogenide (GaX, X = S or Se). Multiscaled flexible GaX NS/SWCNT heterostructures with abundant voids for Li+ diffusion are fabricated by embedding the liquid-exfoliated GaX NS matrix within a SWCNT-percolated network; the latter improves the electron transport and ion diffusion kinetics as well as maintains the mechanical flexibility. Consequently, high capacities (i.e., 838 mAh g-1 per gallium (II) sulfide (GaS) NS/SWCNT mass and 1107 mAh g-1 per GaS mass; the latter is close to the theoretical value) and good rate capabilities are achieved, which can be majorly attributed to the alloying processes of disordered Ga formed after the first irreversible GaX conversion reaction, as monitored by in situ X-ray diffraction. The presented approach, colloidal solution processing of SWCNT and liquid-exfoliated MC NS to produce flexible paper-based electrode, could be generalized for wearable energy storage devices with promising performances.
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Affiliation(s)
- Chuanfang John Zhang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sang-Hoon Park
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Oskar Ronan
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Andrew Harvey
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Andrés Seral-Ascaso
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Zifeng Lin
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 118, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Conor S Boland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Nina C Berner
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Georg S Duesberg
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Patrick Rozier
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 118, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Jonathan N Coleman
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Valeria Nicolosi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
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Coelho J, Pokle A, Park SH, McEvoy N, Berner NC, Duesberg GS, Nicolosi V. Lithium Titanate/Carbon Nanotubes Composites Processed by Ultrasound Irradiation as Anodes for Lithium Ion Batteries. Sci Rep 2017; 7:7614. [PMID: 28790388 PMCID: PMC5548767 DOI: 10.1038/s41598-017-06908-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 06/20/2017] [Indexed: 11/09/2022] Open
Abstract
In this work, lithium titanate nanoparticles (nLTO)/single wall carbon nanotubes (SWCNT) composite electrodes are prepared by the combination of an ultrasound irradiation and ultrasonic spray deposition methods. It was found that a mass fraction of 15% carbon nanotubes optimizes the electrochemical performance of nLTO electrodes. These present capacities as high as 173, 130, 110 and 70 mAh.g-1 at 0.1C, 1C, 10C and 100C, respectively. Moreover, after 1000 cycles at 1C, the nLTO/SWCNT composites present a capacity loss of just 9% and a Coulombic efficiency of 99.8%. Therefore, the presented methodology might be extended to other suitable active materials in order to manufacture binder free electrodes with optimal energy storage capabilities.
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Affiliation(s)
- João Coelho
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Anuj Pokle
- School of Physics/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Sang-Hoon Park
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Niall McEvoy
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Nina C Berner
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Georg S Duesberg
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.,Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Werner-Heisenberg-Weg 39, 85577, Neubiberg, Germany
| | - Valeria Nicolosi
- School of Chemistry/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland. .,School of Physics/CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
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Gonzalez-Fernandez T, Sathy B, Hobbs C, Cunniffe G, McCarthy H, Dunne N, Nicolosi V, O'Brien F, Kelly D. Mesenchymal stem cell fate following non-viral gene transfection strongly depends on the choice of delivery vector. Acta Biomater 2017; 55:226-238. [PMID: 28363788 DOI: 10.1016/j.actbio.2017.03.044] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/06/2017] [Accepted: 03/27/2017] [Indexed: 12/22/2022]
Abstract
Controlling the phenotype of mesenchymal stem cells (MSCs) through the delivery of regulatory genes is a promising strategy in tissue engineering (TE). Essential to effective gene delivery is the choice of gene carrier. Non-viral delivery vectors have been extensively used in TE, however their intrinsic effects on MSC differentiation remain poorly understood. The objective of this study was to investigate the influence of three different classes of non-viral gene delivery vectors: (1) cationic polymers (polyethylenimine, PEI), (2) inorganic nanoparticles (nanohydroxyapatite, nHA) and (3) amphipathic peptides (RALA peptide) on modulating stem cell fate after reporter and therapeutic gene delivery. Despite facilitating similar reporter gene transfection efficiencies, these nanoparticle-based vectors had dramatically different effects on MSC viability, cytoskeletal morphology and differentiation. After reporter gene delivery (pGFP or pLUC), the nHA and RALA vectors supported an elongated MSC morphology, actin stress fibre formation and the development of mature focal adhesions, while cells appeared rounded and less tense following PEI transfection. These changes in MSC morphology correlated with enhanced osteogenesis following nHA and RALA transfection and adipogenesis following PEI transfection. When therapeutic genes encoding for transforming growth factor beta 3 (TGF-β3) and/or bone morphogenic protein 2 (BMP2) were delivered to MSCs, nHA promoted osteogenesis in 2D culture and the development of an endochondral phenotype in 3D culture, while RALA was less osteogenic and appeared to promote a more stable hyaline cartilage-like phenotype. In contrast, PEI failed to induce robust osteogenesis or chondrogenesis of MSCs, despite effective therapeutic protein production. Taken together, these results demonstrate that the differentiation of MSCs through the application of non-viral gene delivery strategies depends not only on the gene delivered, but also on the gene carrier itself. STATEMENT OF SIGNIFICANCE Nanoparticle-based non-viral gene delivery vectors have been extensively used in regenerative medicine, however their intrinsic effects on mesenchymal stem cell (MSC) differentiation remain poorly understood. This paper demonstrates that different classes of commonly used non-viral vectors are not inert and they have a strong effect on cell morphology, stress fiber formation and gene transcription in MSCs, which in turn modulates their capacity to differentiate towards osteogenic, adipogenic and chondrogenic lineages. These results also point to the need for careful and tissue-specific selection of nanoparticle-based delivery vectors to prevent undesired phenotypic changes and off-target effects when delivering therapeutic genes to damaged or diseased tissues.
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Zeng X, Hirwa H, Ortel M, Nerl HC, Nicolosi V, Wagner V. Growth of large sized two-dimensional MoS 2 flakes in aqueous solution. Nanoscale 2017; 9:6575-6580. [PMID: 28474725 DOI: 10.1039/c7nr00701a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A large lateral size and low dimensions are prerequisites for next generation electronics. Since the first single layer MoS2 transistor reported by Kis's group in 2011, layered transition metal dichalcogenides (TMDs) have been demonstrated to be the ideal candidate for next generation electronics. However, the development of large scale and low cost growth techniques is a crucial step towards TMDs' inclusion in modern electronics and photoelectronics. In this work we develop a cheap, wet chemical, and environment friendly deposition process for two dimensional MoS2 flakes with extended size. For our deposition process, ammonium tetrathiomolybdate (ATTM) dissolved in deionized water was used as precursor solution and was deposited on a SiO2/Si substrate through a Langmuir-Blodgett like deposition process. To our knowledge, this is the first time MoS2 flakes have been grown in an aqueous solution. Large-sized MoS2 flakes exceeding 150 μm in lateral size were obtained after thermal decomposition. Thicknesses ranging from a monolayer to 5 monolayers were confirmed by AFM and Raman spectroscopy. Further investigations revealed that the quality of the produced flakes strongly depends on the post growth thermal treatment and its atmosphere. This simple and nontoxic deposition method is suitable for the preparation of large (hybrid) transition metal dichalcogenide nanostructures for applications in next generation electronics.
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Affiliation(s)
- Xiaoling Zeng
- Department of Physics & Earth Science, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
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50
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Kelly AG, Hallam T, Backes C, Harvey A, Esmaeily AS, Godwin I, Coelho J, Nicolosi V, Lauth J, Kulkarni A, Kinge S, Siebbeles LDA, Duesberg GS, Coleman JN. All-printed thin-film transistors from networks of liquid-exfoliated nanosheets. Science 2017; 356:69-73. [DOI: 10.1126/science.aal4062] [Citation(s) in RCA: 305] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/13/2017] [Indexed: 01/18/2023]
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