1
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Saladino GM, Brodin B, Kakadiya R, Toprak MS, Hertz HM. Iterative nanoparticle bioengineering enabled by x-ray fluorescence imaging. SCIENCE ADVANCES 2024; 10:eadl2267. [PMID: 38517973 DOI: 10.1126/sciadv.adl2267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/16/2024] [Indexed: 03/24/2024]
Abstract
Nanoparticles (NPs) are currently developed for drug delivery and molecular imaging. However, they often get intercepted before reaching their target, leading to low targeting efficacy and signal-to-noise ratio. They tend to accumulate in organs like lungs, liver, kidneys, and spleen. The remedy is to iteratively engineer NP surface properties and administration strategies, presently a time-consuming process that includes organ dissection at different time points. To improve this, we propose a rapid iterative approach using whole-animal x-ray fluorescence (XRF) imaging to systematically evaluate NP distribution in vivo. We applied this method to molybdenum-based NPs and clodronate liposomes for tumor targeting with transient macrophage depletion, leading to reduced accumulations in lungs and liver and eventual tumor detection. XRF computed tomography (XFCT) provided 3D insight into NP distribution within the tumor. We validated the results using a multiscale imaging approach with dye-doped NPs and gene expression analysis for nanotoxicological profiling. XRF imaging holds potential for advancing therapeutics and diagnostics in preclinical pharmacokinetic studies.
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Affiliation(s)
- Giovanni M Saladino
- Department of Applied Physics, Biomedical and X-Ray Physics, KTH Royal Institute of Technology, SE 10691, Stockholm, Sweden
| | - Bertha Brodin
- Department of Applied Physics, Biomedical and X-Ray Physics, KTH Royal Institute of Technology, SE 10691, Stockholm, Sweden
| | - Ronak Kakadiya
- Department of Applied Physics, Biomedical and X-Ray Physics, KTH Royal Institute of Technology, SE 10691, Stockholm, Sweden
| | - Muhammet S Toprak
- Department of Applied Physics, Biomedical and X-Ray Physics, KTH Royal Institute of Technology, SE 10691, Stockholm, Sweden
| | - Hans M Hertz
- Department of Applied Physics, Biomedical and X-Ray Physics, KTH Royal Institute of Technology, SE 10691, Stockholm, Sweden
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2
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Grote L, Zito CA, Frank K, Dippel AC, Reisbeck P, Pitala K, Kvashnina KO, Bauters S, Detlefs B, Ivashko O, Pandit P, Rebber M, Harouna-Mayer SY, Nickel B, Koziej D. X-ray studies bridge the molecular and macro length scales during the emergence of CoO assemblies. Nat Commun 2021; 12:4429. [PMID: 34285227 PMCID: PMC8292528 DOI: 10.1038/s41467-021-24557-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/24/2021] [Indexed: 11/09/2022] Open
Abstract
The key to fabricating complex, hierarchical materials is the control of chemical reactions at various length scales. To this end, the classical model of nucleation and growth fails to provide sufficient information. Here, we illustrate how modern X-ray spectroscopic and scattering in situ studies bridge the molecular- and macro- length scales for assemblies of polyhedrally shaped CoO nanocrystals. Utilizing high energy-resolution fluorescence-detected X-ray absorption spectroscopy, we directly access the molecular level of the nanomaterial synthesis. We reveal that initially Co(acac)3 rapidly reduces to square-planar Co(acac)2 and coordinates to two solvent molecules. Combining atomic pair distribution functions and small-angle X-ray scattering we observe that, unlike a classical nucleation and growth mechanism, nuclei as small as 2 nm assemble into superstructures of 20 nm. The individual nanoparticles and assemblies continue growing at a similar pace. The final spherical assemblies are smaller than 100 nm, while the nanoparticles reach a size of 6 nm and adopt various polyhedral, edgy shapes. Our work thus provides a comprehensive perspective on the emergence of nano-assemblies in solution.
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Affiliation(s)
- Lukas Grote
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Cecilia A Zito
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- São Paulo State University UNESP, São José do Rio Preto, Brazil
| | - Kilian Frank
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | | | - Patrick Reisbeck
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Krzysztof Pitala
- AGH, University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
- Academic Center for Materials and Nanotechnology, AGH University of Science and Technology, Krakow, Poland
| | - Kristina O Kvashnina
- The Rossendorf Beamline at the European Synchrotron Radiation Facility ESRF, Grenoble, France
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Dresden, Germany
| | - Stephen Bauters
- The Rossendorf Beamline at the European Synchrotron Radiation Facility ESRF, Grenoble, France
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Dresden, Germany
| | - Blanka Detlefs
- European Synchrotron Radiation Facility ESRF, Grenoble, France
| | - Oleh Ivashko
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | | | - Matthias Rebber
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Sani Y Harouna-Mayer
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Bert Nickel
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Dorota Koziej
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany.
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany.
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3
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Pesesse A, Carenco S. Influence of the copper precursor on the catalytic transformation of oleylamine during Cu nanoparticle synthesis. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00639h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper nanoparticles prepared from copper acetylacetonate complex or acetate complex show significant differences in terms of reaction mechanism and further catalytic transformation of oleylamine.
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Affiliation(s)
- Antoine Pesesse
- Sorbonne Université
- CNRS
- Collège de France
- Laboratoire de Chimie de la Matière Condensée de Paris
- 75005 Paris
| | - Sophie Carenco
- Sorbonne Université
- CNRS
- Collège de France
- Laboratoire de Chimie de la Matière Condensée de Paris
- 75005 Paris
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4
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Christiansen TL, Cooper SR, Jensen KMØ. There's no place like real-space: elucidating size-dependent atomic structure of nanomaterials using pair distribution function analysis. NANOSCALE ADVANCES 2020; 2:2234-2254. [PMID: 36133369 PMCID: PMC9418950 DOI: 10.1039/d0na00120a] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/05/2020] [Indexed: 05/25/2023]
Abstract
The development of new functional materials builds on an understanding of the intricate relationship between material structure and properties, and structural characterization is a crucial part of materials chemistry. However, elucidating the atomic structure of nanomaterials remains a challenge using conventional diffraction techniques due to the lack of long-range atomic order. Over the past decade, Pair Distribution Function (PDF) analysis of X-ray or neutron total scattering data has become a mature and well-established method capable of giving insight into the atomic structure in nanomaterials. Here, we review the use of PDF analysis and modelling in characterization of a range of different nanomaterials that exhibit unique atomic structure compared to the corresponding bulk materials. A brief introduction to PDF analysis and modelling is given, followed by examples of how essential structural information can be extracted from PDFs using both model-free and advanced modelling methods. We put an emphasis on how the intuitive nature of the PDF can be used for understanding important structural motifs, and on the diversity of applications of PDF analysis to nanostructure problems.
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Affiliation(s)
| | - Susan R Cooper
- Department of Chemistry and Nanoscience Center, University of Copenhagen 2100 Copenhagen Ø Denmark
| | - Kirsten M Ø Jensen
- Department of Chemistry and Nanoscience Center, University of Copenhagen 2100 Copenhagen Ø Denmark
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5
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Highly Crystalline TiO2-MoO3 Composite Materials Synthesized via a Template-Assisted Microwave Method for Electrochemical Application. CRYSTALS 2020. [DOI: 10.3390/cryst10060493] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
TiO2-MoO3 composite systems were successfully prepared using a template-assisted microwave method at molar ratios TiO2:MoO3 = 8:2, 5:5 and 2:8. The synthesized material systems were comprehensively characterized, in terms of their crystalline structure (XRD and Raman spectroscopy), morphology (SEM, TEM and HRTEM analysis) and parameters of the porous structure (low-temperature N2 sorption). The materials exhibited highly crystalline phases: anatase and hexagonal molybdenum trioxide. Moreover, TEM analysis revealed hexagonal prism particles of MoO3 and nanocrystalline particles of TiO2. The proposed template-assisted microwave synthesis enabled the incorporation of TiO2 particles on the surface of hexagonal particles of MoO3, which resulted in a stable junction between titania and molybdenum trioxide. The values of BET surface area were 57, 29 and 11 m2/g for samples obtained at molar ratios TiO2:MoO3 = 8:2, 5:5 and 2:8 respectively. In electrochemical applications, titanium dioxide plays a crucial role as an intercalation intensifier, in which MoO3 is responsible for current conduction. Taking account of the potential electrochemical applications, the best system was obtained at the molar ratio TiO2:MoO3 = 5:5. The anode could maintain a capacity of 400 mAh/g at current densities in the range 100–1000 mA/g at potential values ranging from 1.00 to 3.30 V vs. Li/Li+. X-ray photoelectron spectroscopy (XPS) confirmed the effective intercalation of lithium ions into the TiO2-MoO3 composite materials.
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6
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Fattakhova ZA, Zakharova GZ. МоО2/С Composites: Synthesis, Properties, and Formation Mechanism. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620040051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Abstract
Abstract
Niobium pentoxides are promising acid catalysts for the conversion of biomass into fuels and chemicals. Developing new synthesis routes is essential for designing niobium pentoxide catalysts with improved activity for specific practical processes. Here we show a synthesis approach in acetophenone, which produces nanostructured niobium pentoxides with varying structure and acidity that act as efficient acid catalysts. The oxides have orthorhombic structures with different extents of distortions and coordinatively unsaturated metal atoms. A strong dependence is observed between the type and strength of the acid sites and specific structural motifs. Ultrasmall niobium pentoxide nanoparticles, which have strong Brønsted acidity, as well as Lewis acidity, give product yields of 96% (3 h, 140 °C, 100% conversion), 85% (3 h, 140 °C, 86% conversion), and 100% (3 h, 110 °C, 100% conversion) in the reactions of furfuryl alcohol, 5-(hydroxymethyl)furfural, and α-angelica lactone with ethanol, respectively.
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8
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Building nanoparticle-stacking MoO2-CDs via in-situ carbon dots reduction as high-performance anode material for lithium ion and sodium ion batteries. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.07.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Christiansen TL, Bøjesen ED, Juelsholt M, Etheridge J, Jensen KMØ. Size Induced Structural Changes in Molybdenum Oxide Nanoparticles. ACS NANO 2019; 13:8725-8735. [PMID: 31361462 DOI: 10.1021/acsnano.9b01367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanosizing of metal oxide particles is a common strategy for improving materials properties; however, small particles often take structures different from the bulk material. MoO2 nanoparticles show a structure that is distinct from the bulk distorted rutile structure and which has not yet been determined. Here, we present a model for nanostructured MoO2 obtained through detailed atomic pair distribution function analysis combined with high-resolution electron microscopy. Defects occur in the arrangement of [MoO6] octahedra, in both large (40-100 nm) nanoparticles, where the overall distorted rutile structure is preserved, and in small nanoparticles (<5 nm), where a new nanostructure is formed. The study provides a piece in the puzzle of understanding the structure/properties relationship of molybdenum oxides and further our understanding of the origin of structural changes taking place upon nanosizing in oxide materials.
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Affiliation(s)
| | | | - Mikkel Juelsholt
- Department of Chemistry and Nanoscience Center , University of Copenhagen , 2100 Copenhagen Ø , Denmark
| | | | - Kirsten M Ø Jensen
- Department of Chemistry and Nanoscience Center , University of Copenhagen , 2100 Copenhagen Ø , Denmark
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10
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Deshmukh R, Niederberger M. Mechanistic Aspects in the Formation, Growth and Surface Functionalization of Metal Oxide Nanoparticles in Organic Solvents. Chemistry 2017; 23:8542-8570. [DOI: 10.1002/chem.201605957] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Rupali Deshmukh
- Laboratory for Multifunctional Materials, Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Markus Niederberger
- Laboratory for Multifunctional Materials, Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
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11
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Wu D, Shen R, Yang R, Ji W, Jiang M, Ding W, Peng L. Mixed Molybdenum Oxides with Superior Performances as an Advanced Anode Material for Lithium-Ion Batteries. Sci Rep 2017; 7:44697. [PMID: 28294179 PMCID: PMC5353649 DOI: 10.1038/srep44697] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 02/13/2017] [Indexed: 12/13/2022] Open
Abstract
A simple and effective carbon-free strategy is carried out to prepare mixed molybdenum oxides as an advanced anode material for lithium-ion batteries. The new material shows a high specific capacity up to 930.6 mAh·g−1, long cycle-life (>200 cycles) and high rate capability. 1D and 2D solid-state NMR, as well as XRD data on lithiated sample (after discharge) show that the material is associated with both insertion/extraction and conversion reaction mechanisms for lithium storage. The well mixed molybdenum oxides at the microscale and the involvement of both mechanisms are considered as the key to the better electrochemical properties. The strategy can be applied to other transition metal oxides to enhance their performance as electrode materials.
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Affiliation(s)
- Di Wu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Rui Shen
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Rong Yang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wenxu Ji
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Meng Jiang
- General Motors R&D, Warren, MI 48090, USA
| | - Weiping Ding
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Luming Peng
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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12
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Yang L, Li X, Ouyang Y, Gao Q, Ouyang L, Hu R, Liu J, Zhu M. Hierarchical MoO2/Mo2C/C Hybrid Nanowires as High-Rate and Long-Life Anodes for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19987-19993. [PMID: 27400758 DOI: 10.1021/acsami.6b05049] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hierarchical MoO2/Mo2C/C hybrid nanowires (MoO2/Mo2C/C HNWs) have been fabricated through facile calcination of Mo3O10(C6H5NH3)2·2H2O nanowires which serve as both precursors and self-templates. In the MoO2/Mo2C/C HNWs, nanoparticles dispersed in the nanowires are beneficial for Li(+) transportation due to the decreased diffusion paths. Moreover, hybridization with Mo2C and carbon facilitates the electron transfer and increases the structural stability without sacrifice of capacity. As anode materials for lithium-ion batteries, the MoO2/Mo2C/C HNWs exhibit a reversible capacity of 950 mA h g(-1) after 320 cycles at a current density of 200 mA g(-1). Even when cycled at 2000 mA g(-1), they maintained a reversible capacity of 602 mA h g(-1) after 500 cycles. By incorporation of Mo2C and C with MoO2, the MoO2/Mo2C/C HNWs show high-rate capability and long cycle life and can be a promising candidate for lithium-ion battery anodes.
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Affiliation(s)
- Lichun Yang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Xiang Li
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Yunpeng Ouyang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Qingsheng Gao
- Department of Chemistry, Jinan University , Guangzhou 510632, People's Republic of China
| | - Liuzhang Ouyang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Renzong Hu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Jun Liu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Min Zhu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology , Guangzhou 510641, People's Republic of China
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13
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Liu H, Hu H, Wang J, Niehoff P, He X, Paillard E, Eder D, Winter M, Li J. Hierarchical Ternary MoO2
/MoS2
/Heteroatom-Doped Carbon Hybrid Materials for High-Performance Lithium-Ion Storage. ChemElectroChem 2016. [DOI: 10.1002/celc.201600062] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Haidong Liu
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Huating Hu
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Jun Wang
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Philip Niehoff
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Xin He
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Elie Paillard
- Helmholtz Institute Münster - Forschungszentrum Jülich GmbH (IEK-12); Corrensstr. 46 48149 Münster Germany
| | - Dominik Eder
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
| | - Martin Winter
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
- Helmholtz Institute Münster - Forschungszentrum Jülich GmbH (IEK-12); Corrensstr. 46 48149 Münster Germany
| | - Jie Li
- MEET Battery Research Center; University of Muenster; Corrensstr. 46 48149 Muenster Germany
- Institute of Physical Chemistry; University of Muenster; Corrensstr. 28/30 48149 Muenster Germany
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14
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Guan B, Sun W, Wang Y. Carbon-Coated MnMoO4 Nanorod for High-Performance Lithium-Ion Batteries. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Systematic study on the influence of the morphology of α-MoO3 in the selective oxidation of propylene. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.04.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Tang W, Peng CX, Nai CT, Su J, Liu YP, Reddy MVV, Lin M, Loh KP. Ultrahigh Capacity Due to Multi-Electron Conversion Reaction in Reduced Graphene Oxide-Wrapped MoO2 Porous Nanobelts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:2446-2453. [PMID: 25620728 DOI: 10.1002/smll.201403018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 11/30/2014] [Indexed: 06/04/2023]
Abstract
Multivalent transition metal oxides (MOx ) containing redox centers which can theoretically accept more than one electron have been suggested as promising anode materials for high-performance lithium ion batteries (LIBs). The Li-storage mechanism of these oxides is suggested to involve an unusual conversion reaction leading to the formation of metallic nanograins and Li2 O; however, a full-scale conversion reaction is seldom observed in molybdenum dioxide (MoO2 ) at room temperature due to slow kinetics. Herein, a full-scale multi-electron conversion reaction, leading to a high reversible capacity (974 mA h g(-1) charging capacity at 60 mA g(-1) ) in LIBs, is realized in a hybrid consisting of reduced graphene oxide (rGO) sheet-wrapped MoO2 porous nanobelts (rGO/MoO2 NBs). The rGO wrapping layers stabilize the nanophase transition in MoO2 and alleviate volume swing effects during lithiation/delithiation processes. This enables the hybrid to exhibit great cycle stability (tested to around 1900 cycles) and ultrafast rate capability (tested up to 50 A g(-1) ).
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Affiliation(s)
- Wei Tang
- Department of Chemistry, National University of Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS), Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, 117456, Singapore
| | - Cheng Xin Peng
- Department of Chemistry, National University of Singapore, 117543, Singapore
| | - Chang Tai Nai
- Department of Chemistry, National University of Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS), Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, 117456, Singapore
| | - Jie Su
- Department of Chemistry, National University of Singapore, 117543, Singapore
| | - Yan Peng Liu
- Department of Chemistry, National University of Singapore, 117543, Singapore
| | | | - Ming Lin
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 117602, Singapore
| | - Kian Ping Loh
- Department of Chemistry, National University of Singapore, 117543, Singapore
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17
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Wu L, Wang X, Sun Y, Liu Y, Li J. Flawed MoO2 belts transformed from MoO3 on a graphene template for the hydrogen evolution reaction. NANOSCALE 2015; 7:7040-7044. [PMID: 25644459 DOI: 10.1039/c4nr06624c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A simple and effective electrostatic method has been used to attach MoO3 belts onto a graphene template. The MoO3/graphene composite was annealed under a H2/Ar atmosphere; the obtained MoO2 maintained its original structure and exhibited microstructures such as flaws, etc. We investigated the electrocatalytic behavior of the MoO2/graphene composite towards the hydrogen evolution reaction.
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Affiliation(s)
- Longfei Wu
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China.
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18
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Hu X, Zhang W, Liu X, Mei Y, Huang Y. Nanostructured Mo-based electrode materials for electrochemical energy storage. Chem Soc Rev 2015; 44:2376-404. [DOI: 10.1039/c4cs00350k] [Citation(s) in RCA: 522] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review focuses on the recent progress in nanostructured Mo-based electrode materials for rechargeable lithium/sodium-ion batteries, Mg batteries, and supercapacitors.
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Affiliation(s)
- Xianluo Hu
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Wei Zhang
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Xiaoxiao Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Yueni Mei
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Yunhui Huang
- State Key Laboratory of Materials Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
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Staniuk M, Zindel D, van Beek W, Hirsch O, Kränzlin N, Niederberger M, Koziej D. Matching the organic and inorganic counterparts during nucleation and growth of copper-based nanoparticles – in situ spectroscopic studies. CrystEngComm 2015. [DOI: 10.1039/c5ce00454c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Closing the loop: initially, the reactivity of benzyl alcohol determines the nucleation of Cu nanoparticles, but as soon as they start to form they begin to catalyze the condensation of benzyl alcohol to dibenzylether.
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Affiliation(s)
- Malwina Staniuk
- Laboratory for Multifunctional Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich, Switzerland
| | - Daniel Zindel
- Laboratory of Physical Chemistry
- ETH Zurich
- 8093 Zurich, Switzerland
| | - Wouter van Beek
- Swiss-Norwegian Beamlines at European Synchrotron Research Facility
- 38043 Grenoble, France
| | - Ofer Hirsch
- Laboratory for Multifunctional Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich, Switzerland
| | - Niklaus Kränzlin
- Laboratory for Multifunctional Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich, Switzerland
| | - Markus Niederberger
- Laboratory for Multifunctional Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich, Switzerland
| | - Dorota Koziej
- Laboratory for Multifunctional Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich, Switzerland
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20
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Song G, Shen J, Jiang F, Hu R, Li W, An L, Zou R, Chen Z, Qin Z, Hu J. Hydrophilic molybdenum oxide nanomaterials with controlled morphology and strong plasmonic absorption for photothermal ablation of cancer cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3915-3922. [PMID: 24564332 DOI: 10.1021/am4050184] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The molybdenum oxide nanosheets have shown strong localized surface plasmon resonance (LSPR) absorption in the near-infrared (NIR) region. However, the long alky chains of ligands made them hydrophobic and less biocompatible. To meet the requirements of molybdenum based nanomaterials for use as a future photothermal therapy, a simple hydrothermal route has been developed for hydrophilic molybdenum oxide nanospheres and nanoribbons using a molybdenum precursor and poly(ethylene glycol) (PEG). First, molybdenum oxide nanomaterials prepared in the presence of PEG exhibit strong localized surface plasmon resonance (LSPR) absorption in near-infrared (NIR) region, compared with that of no PEG. Second, elevation of synthetic temperature leads to a gradual transformation of molybdenum oxide nanospheres into nanoribbons, entailing the evolution of an intense LSPR absorption in the NIR region. Third, as-prepared molybdenum oxide nanomaterials coated with PEG possess a hydrophilic property and thus can be directly used for biological applications without additional post treatments. Moreover, molybdenum oxide nanoribbons as a model of photothermal materials can efficiently convert the 980 nm wavelength laser energy into heat energy, and this localized hyperthermia produces the effective thermal ablation of cancer cells, meaning a potential photothermal material.
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Affiliation(s)
- Guosheng Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, China
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21
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Lv W, He W, Wang X, Niu Y, Cao H, Dickerson JH, Wang Z. Understanding the oriented-attachment growth of nanocrystals from an energy point of view: a review. NANOSCALE 2014; 6:2531-2547. [PMID: 24481078 DOI: 10.1039/c3nr04717b] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Since Penn et al. first discovered the oriented attachment growth of crystals, the oriented attachment mechanism has now become a major research focus in the crystal field, and extensive efforts have been carried out over the past decade to systematically investigate the growth mechanism and the statistical kinetic models. However, most of the work mainly focuses on the experimental results on the oriented attachment growth. In contrast to the previous reviews, our review provides an overview of the recent theoretical advances in oriented attachment kinetics combined with experimental evidences. After a brief introduction to the van der Waals interaction and Coulombic interaction in a colloidal system, the correlation between the kinetic models of oriented attachment growth and the interactions is then our focus. The impact of in situ experimental observation techniques on the study of oriented attachment growth is examined with insightful examples. In addition, the advances in theoretical simulations mainly investigating the thermodynamic origin of these interactions at the atomic level are reviewed. This review seeks to understand the oriented attachment crystal growth from a kinetic point of view and provide a quantitative methodology to rationally design an oriented attachment system with pre-evaluated crystal growth parameters.
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Affiliation(s)
- Weiqiang Lv
- School of Energy Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, PR China.
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22
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Koziej D, Lauria A, Niederberger M. 25th anniversary article: metal oxide particles in materials science: addressing all length scales. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:235-257. [PMID: 24254990 DOI: 10.1002/adma.201303161] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/08/2013] [Indexed: 06/02/2023]
Abstract
The fundamental mission of materials science is the description of matter over all length scales. In this review, we apply this concept to particle research. Based on metal oxides, we show that every size range offers its specific features, and every size range had its era, when it was in the center of the research activities. In the first part of the review, we discuss on three metal oxides as examples, how and why the research focus changed its targeted size regime from the micrometer to the nanometer scale and back to the macroscopic world. Next, we present the distinct advantages of using nanoparticles over micrometer-sized particles in selected devices and we point out how such a shift in the size regime opens up new research directions. Finally, we exemplify the methods to introduce nanoparticles into macroscopic objects to make functional ceramics.
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Affiliation(s)
- Dorota Koziej
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093, Zürich, Switzerland
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23
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Besnardiere J, Petrissans X, Surcin C, Buissette V, Le Mercier T, Morcrette M, Portehault D, Cassaignon S. Sustainable one-pot aqueous route to hierarchical carbon–MoO2 electrodes for Li-ion batteries. RSC Adv 2014. [DOI: 10.1039/c4ra03231d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Olliges-Stadler I, Rossell MD, Süess MJ, Ludi B, Bunk O, Pedersen JS, Birkedal H, Niederberger M. A comprehensive study of the crystallization mechanism involved in the nonaqueous formation of tungstite. NANOSCALE 2013; 5:8517-8525. [PMID: 23863978 DOI: 10.1039/c3nr02020g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We present a detailed study on the nonaqueous synthesis of tungstite nanostructures with the focus on crystallization processes and the evolution of particle morphology. Time-dependent transmission electron microscopy (TEM) revealed a complex, particle-based crystallization mechanism involving first the formation of spherical and single-crystalline primary particles of 2-8 nm, which are cross-linked to large and unordered agglomerates, followed by their organization into rod-like structures of 40 × 200-400 nm. These rods undergo an internal ordering process, during which crystallographically oriented stacks of platelets develop. In situ small angle X-ray scattering (SAXS) experiments confirm this pathway of particle formation. The scattering intensity is dominated by the fast formation of rod-like particles, which cause an inter-platelet peak in the SAXS pattern with ongoing internal ordering. With continuous reaction time, the platelet stacks start to fall apart forming shorter assemblies of just a few platelets or even single platelets.
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Affiliation(s)
- Inga Olliges-Stadler
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
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25
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Koziej D, Floryan C, Sperling RA, Ehrlicher AJ, Issadore D, Westervelt R, Weitz DA. Microwave dielectric heating of non-aqueous droplets in a microfluidic device for nanoparticle synthesis. NANOSCALE 2013; 5:5468-75. [PMID: 23670701 DOI: 10.1039/c3nr00500c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We describe a microfluidic device with an integrated microwave heater specifically designed to dielectrically heat non-aqueous droplets using time-varying electrical fields with the frequency range between 700 and 900 MHz. The precise control of frequency, power, temperature and duration of the applied field opens up new vistas for experiments not attainable by conventional microwave heating. We use a non-contact temperature measurement system based on fluorescence to directly determine the temperature inside a single droplet. The maximum temperature achieved of the droplets is 50 °C in 15 ms which represents an increase of about 25 °C above the base temperature of the continuous phase. In addition we use an infrared camera to monitor the thermal characteristics of the device allowing us to ensure that heating is exclusively due to the dielectric heating and not due to other effects like non-dielectric losses due to electrode or contact imperfection. This is crucial for illustrating the potential of dielectric heating of benzyl alcohol droplets for the synthesis of metal oxides. We demonstrate the utility of this technology for metal oxide nanoparticle synthesis, achieving crystallization of tungsten oxide nanoparticles and remarkable microstructure, with a reaction time of 64 ms, a substantial improvement over conventional heating methods.
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Affiliation(s)
- Dorota Koziej
- School of Engineering and Applied Sciences, Department of Physics, Harvard University, Cambridge, MA 02138, USA.
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26
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Jin Y, Yi Q, Ren Y, Wang X, Ye Z. Molecular mechanism of monodisperse colloidal tin-doped indium oxide nanocrystals by a hot-injection approach. NANOSCALE RESEARCH LETTERS 2013; 8:153. [PMID: 23547801 PMCID: PMC3626570 DOI: 10.1186/1556-276x-8-153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 03/11/2013] [Indexed: 05/25/2023]
Abstract
Molecular mechanisms and precursor conversion pathways associated with the reactions that generate colloidal nanocrystals are crucial for the development of rational synthetic protocols. In this study, Fourier transform infrared spectroscopy technique was employed to explore the molecular mechanism associated with the formation of tin-doped indium oxide (ITO) nanocrystals. We found that the reaction pathways of the indium precursor were not consistent with simple ligand replacements proposed in the literature. The resulting understanding inspired us to design a hot-injection approach to separate the ligand replacements of indium acetate and the aminolysis processes, generating quality ITO nanocrystals with decent size distributions. The hot-injection approach was readily applied to the synthesis of ITO nanocrystals with a broad range of tin doping. Structural, chemical, and optical analyses revealed effective doping of Sn4+ ions into the host lattices, leading to characteristic and tunable near-infrared surface plasmon resonance peaks. The size control of ITO nanocrystals by multiple hot-injections of metal precursors was also demonstrated.
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Affiliation(s)
- Yizheng Jin
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
- Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University Hangzhou, Zhejiang, 310027, People's Republic of China
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province, 325027, People's Republic of China
| | - Qing Yi
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yuping Ren
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Xin Wang
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Zhizhen Ye
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
- Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University Hangzhou, Zhejiang, 310027, People's Republic of China
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27
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Chen A, Li C, Tang R, Yin L, Qi Y. MoO2–ordered mesoporous carbon hybrids as anode materials with highly improved rate capability and reversible capacity for lithium-ion battery. Phys Chem Chem Phys 2013; 15:13601-10. [DOI: 10.1039/c3cp51255j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Chen Y, Di X, Ma C, Zhu C, Gao P, Li J, Sun C, Ouyang Q. Graphene–MoO2 hierarchical nanoarchitectures: in situ reduction synthesis and high rate cycling performance as lithium-ion battery anodes. RSC Adv 2013. [DOI: 10.1039/c3ra42319k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Saji VS, Lee CW. Molybdenum, molybdenum oxides, and their electrochemistry. CHEMSUSCHEM 2012; 5:1146-1161. [PMID: 22693154 DOI: 10.1002/cssc.201100660] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Revised: 01/03/2012] [Indexed: 05/27/2023]
Abstract
The electrochemical behaviors of molybdenum and its oxides, both in bulk and thin film dimensions, are critical because of their widespread applications in steels, electrocatalysts, electrochromic materials, batteries, sensors, and solar cells. An important area of current interest is electrodeposited CIGS-based solar cells where a molybdenum/glass electrode forms the back contact. Surprisingly, the basic electrochemistry of molybdenum and its oxides has not been reviewed with due attention. In this Review, we assess the scattered information. The potential and pH dependent active, passive, and transpassive behaviors of molybdenum in aqueous media are explained. The major surface oxide species observed, reversible redox transitions of the surface oxides, pseudocapacitance and catalytic reduction are discussed along with carefully conducted experimental results on a typical molybdenum glass back contact employed in CIGS-based solar cells. The applications of molybdenum oxides and the electrodeposition of molybdenum are briefly reviewed.
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Affiliation(s)
- Viswanathan S Saji
- Department of Advanced Materials Chemistry, Korea University, Jochiwon, Sejong 339-700, Korea.
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30
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Ludi B, Süess MJ, Werner IA, Niederberger M. Mechanistic aspects of molecular formation and crystallization of zinc oxide nanoparticles in benzyl alcohol. NANOSCALE 2012; 4:1982-1995. [PMID: 22159429 DOI: 10.1039/c1nr11557j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Zinc oxide nanostructures are known to exist in a great variety of morphologies. However, the underlying mechanisms leading to these architectures are far from being fully understood. Here, we present a time dependent study of the generation of zinc oxide nanorods, which arrange into bundles with a fan- or bouquet-like structure, using the benzyl alcohol route. The structural evolution of the nanoparticles was monitored by electron microscopy techniques, whereas the progress of the chemical reaction was followed by quantification of the organic by-products using gas chromatography. With this study we give a detailed insight into the formation of the zinc oxide structures, which involves a complex pathway based on many in parallel occurring processes such as crystallization of primary particles, their oriented attachment and surface reconstruction inside the nanoparticulate agglomerates. However, in spite of such an intricate growth behavior, the ZnO nanostructures are surprisingly uniform in size and shape.
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Affiliation(s)
- Bettina Ludi
- Laboratory of Multifunctional Materials, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
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31
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Fang X, Guo B, Shi Y, Li B, Hua C, Yao C, Zhang Y, Hu YS, Wang Z, Stucky GD, Chen L. Enhanced Li storage performance of ordered mesoporous MoO2 via tungsten doping. NANOSCALE 2012; 4:1541-1544. [PMID: 22294160 DOI: 10.1039/c2nr12017h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Ordered mesoporous tungsten-doped MoO(2) was synthesized by a nanocasting method. The Li storage performance of mesoporous MoO(2) is significantly improved by tungsten doping, which exhibits a reversible capacity of 700 mA h g(-1), better cycling and rate performance. This material combines the advantages of the high theoretical capacity of MoO(2) and the better electroactivity of WO(2).
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Affiliation(s)
- Xiangpeng Fang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100080, China
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32
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Olliges-Stadler I, Stötzel J, Koziej D, Rossell MD, Grunwaldt JD, Nachtegaal M, Frahm R, Niederberger M. Study of the Chemical Mechanism Involved in the Formation of Tungstite in Benzyl Alcohol by the Advanced QEXAFS Technique. Chemistry 2012; 18:2305-12. [DOI: 10.1002/chem.201101514] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Indexed: 11/11/2022]
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33
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Debecker DP, Mutin PH. Non-hydrolytic sol–gel routes to heterogeneous catalysts. Chem Soc Rev 2012; 41:3624-50. [DOI: 10.1039/c2cs15330k] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Yang L, Liu L, Zhu Y, Wang X, Wu Y. Preparation of carbon coated MoO2 nanobelts and their high performance as anode materials for lithium ion batteries. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31364b] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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35
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Seng KH, Du GD, Li L, Chen ZX, Liu HK, Guo ZP. Facile synthesis of graphene–molybdenum dioxide and its lithium storage properties. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32822d] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Sun Y, Hu X, Luo W, Huang Y. Ultrafine MoO2nanoparticles embedded in a carbon matrix as a high-capacity and long-life anode for lithium-ion batteries. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14701c] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Sun Y, Hu X, Luo W, Huang Y. Self-assembled hierarchical MoO2/graphene nanoarchitectures and their application as a high-performance anode material for lithium-ion batteries. ACS NANO 2011; 5:7100-7. [PMID: 21823572 DOI: 10.1021/nn201802c] [Citation(s) in RCA: 192] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Self-assembled hierarchical MoO(2)/graphene nanoarchitectures have been fabricated on a large scale through a facile solution-phase process and subsequent reduction of the Mo-precursor/graphene composite. The as-formed MoO(2)/graphene nanohybrid as an anode material for lithium-ion batteries exhibits not only a highly reversible capacity but also an excellent cycling performance as well as good rate capability. Results show that the hierarchical rods made of primary MoO(2) nanocrystals are uniformly encapsulated within the graphene sheets. The synergistic effect of the hierarchical nanoarchitecture and the conducting graphene support may contribute to the enhanced electrochemical performances of the hybrid MoO(2)/graphene electrode. This work presents a facile synthetic strategy that is potentially competitive for scaling-up industrial production. Besides, the MoO(2)/graphene hybrids with a well-defined hierarchical topology not only provide flexible building blocks for advanced functional devices, but are also ideal candidates for studying their nanoarchitecture-dependent performances in catalytic and electronic applications.
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Affiliation(s)
- Yongming Sun
- State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
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