1
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Corletto A, Myagmarsereejid P, Wang S, Yan W, Balendhran S, Liu H, Zhong YL, Crozier KB, Batmunkh M, Bullock J. Scalable Fabrication of Black Phosphorous Films for Infrared Photodetector Arrays. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403182. [PMID: 39033543 DOI: 10.1002/advs.202403182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 06/19/2024] [Indexed: 07/23/2024]
Abstract
Bulk black phosphorous (bP) exhibits excellent infrared (IR) optoelectronic properties, but most reported bP IR photodetectors are fabricated from single exfoliated flakes with lateral sizes of < 100 µm. Here, scalable thin films of bP suitable for IR photodetector arrays are realized through a tailored solution-deposition method. The properties of the bP film and their protective capping layers are optimized to fabricate bP IR photoconductors exhibiting specific detectivities up to 4.0 × 108 cm Hz1/2 W-1 with fast 30/60 µs rise/fall times under λ = 2.2 µm illumination. The scalability of the bP thin film fabrication is demonstrated by fabricating a linear array of 25 bP photodetectors and obtaining 25 × 25 pixel IR images at ≈203 ppi with good spatial fidelity. This research demonstrates a commercially viable method of fabricating scalable bP thin films for optoelectronic devices including room temperature-operable IR photodetector arrays.
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Affiliation(s)
- Alexander Corletto
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Purevlkham Myagmarsereejid
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Griffith University, Nathan Campus, Brisbane, Queensland, 4111, Australia
| | - Shifan Wang
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Wei Yan
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Sivacarendran Balendhran
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Huan Liu
- School of Physics, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Yu Lin Zhong
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Griffith University, Nathan Campus, Brisbane, Queensland, 4111, Australia
| | - Kenneth B Crozier
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
- School of Physics, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
- ARC Centre of Excellence for Transformative Meta-Optical Systems, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
| | - Munkhbayar Batmunkh
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Griffith University, Nathan Campus, Brisbane, Queensland, 4111, Australia
| | - James Bullock
- Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, Melbourne, Victoria, 3010, Australia
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Martínez-Jódar A, Villar-Rodil S, Munuera JM, Castro-Muñiz A, Coleman JN, Raymundo-Piñero E, Paredes JI. Two-Dimensional MoS 2 Nanosheets Derived from Cathodic Exfoliation for Lithium Storage Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:932. [PMID: 38869557 PMCID: PMC11173767 DOI: 10.3390/nano14110932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/14/2024]
Abstract
The preparation of 2H-phase MoS2 thin nanosheets by electrochemical delamination remains a challenge, despite numerous efforts in this direction. In this work, by choosing appropriate intercalating cations for cathodic delamination, the insertion process was facilitated, leading to a higher degree of exfoliation while maintaining the original 2H-phase of the starting bulk MoS2 material. Specifically, trimethylalkylammonium cations were tested as electrolytes, outperforming their bulkier tetraalkylammonium counterparts, which have been the focus of past studies. The performance of novel electrochemically derived 2H-phase MoS2 nanosheets as electrode material for electrochemical energy storage in lithium-ion batteries was investigated. The lower thickness and thus higher flexibility of cathodically exfoliated MoS2 promoted better electrochemical performance compared to liquid-phase and ultrasonically assisted exfoliated MoS2, both in terms of capacity (447 vs. 371 mA·h·g-1 at 0.2 A·g-1) and rate capability (30% vs. 8% capacity retained when the current density was increased from 0.2 A·g-1 to 5 A·g-1), as well as cycle life (44% vs. 17% capacity retention at 0.2 A·g-1 after 580 cycles). Overall, the present work provides a convenient route for obtaining MoS2 thin nanosheets for their advantageous use as anode material for lithium storage.
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Affiliation(s)
- Alberto Martínez-Jódar
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain; (A.M.-J.); (A.C.-M.)
- CEMHTI UPR3079, University of Orléans, CNRS, 1D avenue de la Recherche Scientifique, 45071 Orléans, France;
| | - Silvia Villar-Rodil
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain; (A.M.-J.); (A.C.-M.)
| | - José M. Munuera
- Department of Physics, Faculty of Sciences, University of Oviedo, C/ Leopoldo Calvo Sotelo, 18, 33007 Oviedo, Spain;
- School of Physics, CRANN and AMBER Research Centre, Trinity College Dublin, D02 E8C0 Dublin, Ireland;
| | - Alberto Castro-Muñiz
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain; (A.M.-J.); (A.C.-M.)
| | - Jonathan N. Coleman
- School of Physics, CRANN and AMBER Research Centre, Trinity College Dublin, D02 E8C0 Dublin, Ireland;
| | | | - Juan I. Paredes
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain; (A.M.-J.); (A.C.-M.)
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3
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Aggarwal R, Saini D, Mitra R, Sonkar SK, Sonker AK, Westman G. From Bulk Molybdenum Disulfide (MoS 2) to Suspensions of Exfoliated MoS 2 in an Aqueous Medium and Their Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9855-9872. [PMID: 38687994 DOI: 10.1021/acs.langmuir.3c03116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Two-dimensional (2D) layered materials like graphene, transition-metal dichalcogenides (TMDs), boron nitrides, etc., exhibit unique and fascinating properties, such as high surface-to-volume ratio, inherent mechanical flexibility and robustness, tunable bandgap, and high carrier mobility, which makes them an apt candidate for flexible electronics with low consumption of power. Because of these properties, they are in tremendous demand for advancement in energy, environmental, and biomedical sectors developed through various technologies. The production and scalability of these materials must be sustainable and ecofriendly to utilize these unique properties in the real world. Here, in this current review, we review molybdenum disulfide (MoS2 nanosheets) in detail, focusing on exfoliated MoS2 in water and the applicability of aqueous MoS2 suspensions in various fields. The exfoliation of MoS2 results in the formation of single or few-layered MoS2. Therefore, this Review focuses on the few layers of exfoliated MoS2 that have the additional properties of 2D layered materials and higher excellent compatibility for integration than existing conventional Si tools. Hence, a few layers of exfoliated MoS2 are widely explored in biosensing, gas sensing, catalysis, photodetectors, energy storage devices, a light-emitting diode (LED), adsorption, etc. This review covers the numerous methodologies to exfoliate MoS2, focusing on the various published methodologies to obtain nanosheets of MoS2 from water solutions and their use.
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Affiliation(s)
- Ruchi Aggarwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Richa Mitra
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
- Low Temperature Laboratory, Department of Applied Physics, Aalto University, Espoo 02150, Finland
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Amit Kumar Sonker
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
- Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, Gothenburg, 41296, Sweden
- BA5409 cellulose films and coatings, VTT Technical Research Center of Finland, Tietotie 4E, Espoo 02150, Finland
| | - Gunnar Westman
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
- Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, Gothenburg, 41296, Sweden
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4
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Yang J, Zhang Y, Ge Y, Tang S, Li J, Zhang H, Shi X, Wang Z, Tian X. Interlayer Engineering of Layered Materials for Efficient Ion Separation and Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311141. [PMID: 38306408 DOI: 10.1002/adma.202311141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/19/2024] [Indexed: 02/04/2024]
Abstract
Layered materials are characterized by strong in-plane covalent chemical bonds within each atomic layer and weak out-of-plane van der Waals (vdW) interactions between adjacent layers. The non-bonding nature between neighboring layers naturally results in a vdW gap, which enables the insertion of guest species into the interlayer gap. Rational design and regulation of interlayer nanochannels are crucial for converting these layered materials and their 2D derivatives into ion separation membranes or battery electrodes. Herein, based on the latest progress in layered materials and their derivative nanosheets, various interlayer engineering methods are briefly introduced, along with the effects of intercalated species on the crystal structure and interlayer coupling of the host layered materials. Their applications in the ion separation and energy storage fields are then summarized, with a focus on interlayer engineering to improve selective ion transport and ion storage performance. Finally, future research opportunities and challenges in this emerging field are comprehensively discussed.
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Affiliation(s)
- Jinlin Yang
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Yu Zhang
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Yanzeng Ge
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Si Tang
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Jing Li
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Hui Zhang
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Xiaodong Shi
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Zhitong Wang
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Xinlong Tian
- School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
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5
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Zhao M, Casiraghi C, Parvez K. Electrochemical exfoliation of 2D materials beyond graphene. Chem Soc Rev 2024; 53:3036-3064. [PMID: 38362717 DOI: 10.1039/d3cs00815k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
After the discovery of graphene in 2004, the field of atomically thin crystals has exploded with the discovery of thousands of 2-dimensional materials (2DMs) with unique electronic and optical properties, by making them very attractive for a broad range of applications, from electronics to energy storage and harvesting, and from sensing to biomedical applications. In order to integrate 2DMs into practical applications, it is crucial to develop mass scalable techniques providing crystals of high quality and in large yield. Electrochemical exfoliation is one of the most promising methods for producing 2DMs, as it enables quick and large-scale production of solution processable nanosheets with a thickness well below 10 layers and lateral size above 1 μm. Originally, this technique was developed for the production of graphene; however, in the last few years, this approach has been successfully extended to other 2DMs, such as transition metal dichalcogenides, black phosphorous, hexagonal boron nitride, MXenes and many other emerging 2D materials. This review first provides an introduction to the fundamentals of electrochemical exfoliation and then it discusses the production of each class of 2DMs, by introducing their properties and giving examples of applications. Finally, a summary and perspective are given to address some of the challenges in this research area.
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Affiliation(s)
- Minghao Zhao
- Department of Chemistry, University of Manchester, M13 9PL Manchester, UK.
| | - Cinzia Casiraghi
- Department of Chemistry, University of Manchester, M13 9PL Manchester, UK.
| | - Khaled Parvez
- Department of Chemistry, University of Manchester, M13 9PL Manchester, UK.
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6
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Janardhanan JC, Padmanabhan NT, Jandas PJ, Nayar NV, Manoj N, Pillai SC, John H. Directed morphology engineering of 2D MoS 2 nanosheets to 1D nanoscrolls with enhanced hydrogen evolution and specific capacitance. J Colloid Interface Sci 2023; 652:240-249. [PMID: 37595441 DOI: 10.1016/j.jcis.2023.08.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
1D-molybdenum disulfide (MoS2) nanoscrolls displayed enhanced electrochemical properties compared to 2D-MoS2 nanosheet counterparts. Rolling of nanosheets is the main fabrication route to nanoscrolls. However, owing to the conflict between chemical stability and multiple bending, the morphology transition from nanosheets to nanoscrolls is quite challenging. Herein we describe a reversible morphology transition from nanosheets to nanoscrolls by utilizing non-covalent interactions between MoS2 nanosheets and phenothiazine based organic dye. Interestingly, nanoscrolls can easily be opened back into nanosheets by destroying the non-covalent interactions with organic solvents. The prepared nanoscrolls exhibited enhanced electrochemical properties than nanosheets. Compared to nanosheets, nanoscrolls exhibited comparatively lower overpotential with a Tafel slope of 141 mV dec-1 and high specific capacitance of 1868 F g-1. Hydrogen evolution by the Volmer-Heyrovsky mechanism being superior for the nanoscrolls is envisaged by the relatively increased availability of Hads sites at MoS2 edges induced by scrolling. Whereas the high specific capacitance value of nanoscrolls is ascribed to the enhanced electrical double-layer capacitance mediated charge storage, which arises due to the synergistic effect of both scrolled structure and the electron-rich phenothiazine-based dye.
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Affiliation(s)
- Jith C Janardhanan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nisha T Padmanabhan
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - P J Jandas
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nabendu V Nayar
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Narayanapillai Manoj
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Suresh C Pillai
- Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, School of Science, Atlantic Technological University, Sligo, Ash Lane, Sligo F91YW50, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India.
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7
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Saliba M, Atanas JP, Howayek TM, Habchi R. Molybdenum disulfide, exfoliation methods and applications to photocatalysis: a review. NANOSCALE ADVANCES 2023; 5:6787-6803. [PMID: 38059039 PMCID: PMC10696921 DOI: 10.1039/d3na00741c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023]
Abstract
This review provides a deep analysis of the mechanical and optoelectronic characteristics of MoS2. It offers a comprehensive assessment of diverse exfoliation methods, encompassing chemical, liquid-phase, mechanical, and microwave-driven techniques. The review also explores MoS2's versatile applications across various domains and meticulously examines its significance as a photocatalyst. Notably, it highlights key factors influencing the photocatalytic process. Indeed, the enhanced visible light responsiveness of materials like MoS2 holds immense potential across a wide range of applications. MoS2's remarkable photocatalytic response to visible light, coupled with its notable stability, opens up numerous possibilities in various fields. This unique combination makes MoS2 a promising candidate for applications that require efficient and stable photocatalytic processes, such as environmental remediation, water purification, and energy generation. Its attributes contribute significantly to addressing contemporary challenges and advancing sustainable technologies.
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Affiliation(s)
- Michelle Saliba
- EC2M, Faculty of Sciences, Fanar, Lebanese University 2, Campus Pierre Gemayel 90656 Lebanon
| | - Jean Pierre Atanas
- University of Balamand Dubai, Department of Physics D. I. Park-1 Dubai United Arab Emirates
| | - Tia Maria Howayek
- EC2M, Faculty of Sciences, Fanar, Lebanese University 2, Campus Pierre Gemayel 90656 Lebanon
| | - Roland Habchi
- EC2M, Faculty of Sciences, Fanar, Lebanese University 2, Campus Pierre Gemayel 90656 Lebanon
- Functional Materials Group, Gulf University for Science and Technology Hawally Kuwait
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8
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Ramos MK, Martins G, Marcolino-Junior LH, Bergamini MF, Oliveira MM, Zarbin AJG. Nanoarchitected graphene/copper oxide nanoparticles/MoS 2 ternary thin films as highly efficient electrodes for aqueous sodium-ion batteries. MATERIALS HORIZONS 2023; 10:5521-5537. [PMID: 37791417 DOI: 10.1039/d3mh00982c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Sodium-ion batteries (SIBs) operating in aqueous electrolyte are an emerging technology that promises to be safer, cheaper, more sustainable and more efficient than their lithium-based counterparts. One of the great challenges associated with this technology is the development of advanced materials with high specific capacity to be used as electrodes. Herein, we describe an ingenious strategy to prepare unprecedented tri-component nanoarchitected thin films with superior performance when applied as anodes in aqueous SIBs. Taking advantage of the broadness and versatility of the liquid-liquid interfacial route, three transparent nanocomposite films comprising graphene, molybdenum sulphide and copper oxide nanoparticles have been prepared. The samples were characterized using several techniques, and the results demonstrated that depending on the specific experimental strategy, different nanoarchitectures are achieved, resulting in different and improved properties. An astonishing capacity of 1377 mA h g-1 at 0.1 A g-1 and a degree of recovery of 100% were observed for the film in which the interactions among the components were optimized. This is among the highest capacity values reported in the literature and demonstrates the potential of these tri-component materials to be used as anodes in aqueous sodium-ion batteries.
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Affiliation(s)
- Maria K Ramos
- Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, 81531-980, Curitiba, PR, Brazil.
| | - Gustavo Martins
- Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, 81531-980, Curitiba, PR, Brazil.
| | - Luiz H Marcolino-Junior
- Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, 81531-980, Curitiba, PR, Brazil.
| | - Márcio F Bergamini
- Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, 81531-980, Curitiba, PR, Brazil.
| | - Marcela M Oliveira
- Department of Chemistry and Biology, Technological Federal University of Paraná (UTFPR), Curitiba, PR, Brazil
| | - Aldo J G Zarbin
- Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, 81531-980, Curitiba, PR, Brazil.
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9
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Wong H, Li Y, Wang J, Tang TW, Cai Y, Xu M, Li H, Kim TH, Luo Z. Two-dimensional materials for high density, safe and robust metal anodes batteries. NANO CONVERGENCE 2023; 10:37. [PMID: 37561270 PMCID: PMC10415249 DOI: 10.1186/s40580-023-00384-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/18/2023] [Indexed: 08/11/2023]
Abstract
With a high specific capacity and low electrochemical potentials, metal anode batteries that use lithium, sodium and zinc metal anodes, have gained great research interest in recent years, as a potential candidate for high-energy-density storage systems. However, the uncontainable dendrite growth during the repeated charging process, deteriorates the battery performance, reduces the battery life and more importantly, raises safety concerns. With their unique properties, two-dimensional (2D) materials, can be used to modify various components in metal batteries, eventually mitigating the dendrite growth, enhancing the cycling stability and rate capability, thus leading to safe and robust metal anodes. In this paper, we review the recent advances of 2D materials and summarize current research progress of using 2D materials in the applications of (i) anode design, (ii) separator engineering, and (iii) electrolyte modifications by guiding metal ion nucleation, increasing ion conductivity, homogenizing the electric field and ion flux, and enhancing the mechanical strength for safe metal anodes. The 2D material modifications provide the ultimate solution for obtaining dendrite-free metal anodes, realizes the high energy storage application, and indicates the importance of 2D materials development. Finally, in-depth understandings of subsequent metal growth are lacking due to research limitations, while more advanced characterizations are welcome for investigating the metal deposition mechanism. The more facile and simplified preparation of 2D materials possess great prospects in high energy density metal anode batteries, and thus fulfils the development of EVs.
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Affiliation(s)
- Hoilun Wong
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yuyin Li
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jun Wang
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Tsz Wing Tang
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yuting Cai
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Mengyang Xu
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Hongliang Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering and William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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10
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Carrasco D, García-Dalí S, Villar-Rodil S, Munuera JM, Raymundo-Piñero E, Paredes JI. NbSe 2 Nanosheets/Nanorolls Obtained via Fast and Direct Aqueous Electrochemical Exfoliation for High-Capacity Lithium Storage. ACS APPLIED ENERGY MATERIALS 2023; 6:7180-7193. [PMID: 37448979 PMCID: PMC10337822 DOI: 10.1021/acsaem.3c00893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/03/2023] [Indexed: 07/18/2023]
Abstract
Layered transition-metal dichalcogenides (LTMDs) in two-dimensional (2D) form are attractive for electrochemical energy storage, but research efforts in this realm have so far largely focused on the best-known members of such a family of materials, mainly MoS2, MoSe2, and WS2. To exploit the potential of further, currently less-studied 2D LTMDs, targeted methods for their production, preferably by cost-effective and sustainable means, as well as control over their nanomorphology, are highly desirable. Here, we report a quick and straightforward route for the preparation of 2D NbSe2 and other metallic 2D LTMDs that relies on delaminating their bulk parent solid under aqueous cathodic conditions. Unlike typical electrochemical exfoliation methods for 2D materials, which generally require an additional processing step (e.g., sonication) to complete delamination, the present electrolytic strategy yielded directly exfoliated nano-objects in a very short time (1-2 min) and with significant yields (∼16 wt %). Moreover, the dominant morphology of the exfoliated 2D NbSe2 products could be tuned between rolled-up nanosheets (nanorolls) and unfolded nanosheets, depending on the solvent where the nano-objects were dispersed (water or isopropanol). This rather unusual delamination behavior of NbSe2 was explored and concluded to occur via a redox mechanism that involves some degree of hydrolytic oxidation of the material triggered by the cathodic treatment. The delamination strategy could be extended to other metallic LTMDs, such as NbS2 and VSe2. When tested toward electrochemical lithium storage, electrodes based on the exfoliated NbSe2 products delivered very high capacity values, up to 750-800 mA h g-1 at 0.5 A g-1, where the positive effect of the nanoroll morphology, associated to increased accessibility of the lithium storage sites, was made apparent. Overall, these results are expected to expand the availability of fit-for-purpose 2D LTMDs by resorting to simple and expeditious production strategies of low environmental impact.
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Affiliation(s)
- Daniel
F. Carrasco
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - Sergio García-Dalí
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
- CNRS,
CEMHTI UPR3079, Univ. Orléans, 1D Avenue de la Recherche Scientifique, Orléans 45071, France
| | - Silvia Villar-Rodil
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - José M. Munuera
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | | | - Juan I. Paredes
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
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11
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Rodríguez-da-Silva S, El-Hachimi AG, López-de-Luzuriaga JM, Rodríguez-Castillo M, Monge M. Boosting the Catalytic Performance of AuAg Alloyed Nanoparticles Grafted on MoS 2 Nanoflowers through NIR-Induced Light-to-Thermal Energy Conversion. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1074. [PMID: 36985968 PMCID: PMC10058585 DOI: 10.3390/nano13061074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
MoS2 nanoflowers (NFs) obtained through a hydrothermal approach were used as the substrate for the deposition of tiny spherical bimetallic AuAg or monometallic Au nanoparticles (NPs), leading to novel photothermal-assisted catalysts with different hybrid nanostructures and showing improved catalytic performance under NIR laser irradiation. The catalytic reduction of pollutant 4-nitrophenol (4-NF) to the valuable product 4-aminophenol (4-AF) was evaluated. The hydrothermal synthesis of MoS2 NFs provides a material with a broad absorption in the Vis-NIR region of the electromagnetic spectrum. The in situ grafting of alloyed AuAg and Au NPs of very small size (2.0-2.5 nm) was possible through the decomposition of organometallic complexes [Au2Ag2(C6F5)4(OEt2)2]n and [Au(C6F5)(tht)] (tht = tetrahydrothiophene) using triisopropilsilane as reducing agent, leading to nanohybrids 1-4. The new nanohybrid materials display photothermal properties arising from NIR light absorption of the MoS2 NFs component. The AuAg-MoS2 nanohybrid 2 showed excellent photothermal-assisted catalytic activity for the reduction of 4-NF, which is better than that of the monometallic Au-MoS2 nanohybrid 4. The obtained nanohybrids were characterised by transmission electron microscopy (TEM), High Angle Annular Dark Field-Scanning Transmission Electron Microscopy-Energy Dispersive X-ray Spectroscopy (HAADF-STEM-EDS), X-ray photoelectron spectroscopy and UV-Vis-NIR spectroscopy.
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12
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The phenomenon of increasing capacitance induced by 1T/2H-MoS2 surface modification with Pt particles – Influence on composition and energy storage mechanism. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Pan X, Sarhan RM, Kochovski Z, Chen G, Taubert A, Mei S, Lu Y. Template synthesis of dual-functional porous MoS 2 nanoparticles with photothermal conversion and catalytic properties. NANOSCALE 2022; 14:6888-6901. [PMID: 35446331 DOI: 10.1039/d2nr01040b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Advanced catalysis triggered by photothermal conversion effects has aroused increasing interest due to its huge potential in environmental purification. In this work, we developed a novel approach to the fast degradation of 4-nitrophenol (4-Nip) using porous MoS2 nanoparticles as catalysts, which integrate the intrinsic catalytic property of MoS2 with its photothermal conversion capability. Using assembled polystyrene-b-poly(2-vinylpyridine) block copolymers as soft templates, various MoS2 particles were prepared, which exhibited tailored morphologies (e.g., pomegranate-like, hollow, and open porous structures). The photothermal conversion performance of these featured particles was compared under near-infrared (NIR) light irradiation. Intriguingly, when these porous MoS2 particles were further employed as catalysts for the reduction of 4-Nip, the reaction rate constant was increased by a factor of 1.5 under NIR illumination. We attribute this catalytic enhancement to the open porous architecture and light-to-heat conversion performance of the MoS2 particles. This contribution offers new opportunities for efficient photothermal-assisted catalysis.
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Affiliation(s)
- Xuefeng Pan
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany.
- Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
| | - Radwan M Sarhan
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany.
| | - Zdravko Kochovski
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany.
| | - Guosong Chen
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
| | - Shilin Mei
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany.
| | - Yan Lu
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany.
- Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
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14
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de Freitas N, Florindo BR, Freitas VMS, Piazzetta MHDO, Ospina CA, Bettini J, Strauss M, Leite ER, Gobbi AL, Lima RS, Santhiago M. Fast and efficient electrochemical thinning of ultra-large supported and free-standing MoS 2 layers on gold surfaces. NANOSCALE 2022; 14:6811-6821. [PMID: 35388391 DOI: 10.1039/d2nr00491g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Molybdenum disulfide (MoS2) is a very promising layered material for electrical, optical, and electrochemical applications because of its unique and outstanding properties. To unlock its full potential, among different preparation routes, electrochemistry has gain interest due to its simple, fast, scalable and simple instrumentation. However, obtaining large-area monolayer MoS2 that will enable the fabrication of novel electronic and electrochemical devices is still challenging. In this work, we reported a simple and fast electrochemical thinning process that results in ultra-large MoS2 down to monolayer on Au surfaces. The high affinity of MoS2 by Au surfaces enables the removal of bulk layers while preserving the first layer attached to the electrode. With a proper choice of the applied potential, more than 90% of the bulk regions can be removed from large-area MoS2 crystals, as confirmed by atomic force microscopy, photoluminescence, and Raman spectroscopy. We further address a set of contributions that are helpful to elucidate the features of MoS2, namely, the hyphenation of electrochemistry and optical microscopy for real-time observation of the thinning process that was revealed to occur from the edges to the center of the flake, an image treatment to estimate the thinning area and thinning rate, and the preparation of free-standing MoS2 layers by electrochemically thinning bulk flakes on microhole-structured Ni/Au meshes.
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Affiliation(s)
- Nicolli de Freitas
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Bianca R Florindo
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Vitória M S Freitas
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Maria H de O Piazzetta
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Carlos A Ospina
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Jefferson Bettini
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Edson R Leite
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
| | - Angelo L Gobbi
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
| | - Renato S Lima
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
| | - Murilo Santhiago
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
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15
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Chen F, Luo Y, Liu X, Zheng Y, Han Y, Yang D, Wu S. 2D Molybdenum Sulfide-Based Materials for Photo-Excited Antibacterial Application. Adv Healthc Mater 2022; 11:e2200360. [PMID: 35385610 DOI: 10.1002/adhm.202200360] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Indexed: 01/01/2023]
Abstract
Bacterial infections have seriously threatened human health and the abuse of natural or artificial antibiotics leads to bacterial resistance, so development of a new generation of antibacterial agents and treatment methods is urgent. 2D molybdenum sulfide (MoS2 ) has good biocompatibility, high specific surface area to facilitate surface modification and drug loading, adjustable energy bandgap, and high near-infrared photothermal conversion efficiency (PCE), so it is often used for antibacterial application through its photothermal or photodynamic effects. This review comprehensively summarizes and discusses the fabrication processes, structural characteristics, antibacterial performance, and the corresponding mechanisms of MoS2 -based materials as well as their representative antibacterial applications. In addition, the outlooks on the remaining challenges that should be addressed in the field of MoS2 are also proposed.
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Affiliation(s)
- Fangqian Chen
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Yue Luo
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Xiangmei Liu
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Yufeng Zheng
- School of Materials Science & Engineering Peking University Beijing 100871 China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering Xi'an Jiaotong University Xi'an Shanxi 710049 China
| | - Dapeng Yang
- College of Chemical Engineering and Materials Science Quanzhou Normal University Quanzhou Fujian Province 362000 China
| | - Shuilin Wu
- School of Materials Science & Engineering Peking University Beijing 100871 China
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16
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Zheng X, Cong H, Yang T, Ji K, Wang C, Chen M. High-efficiency 2D nanosheet exfoliation by a solid suspension-improving method. NANOTECHNOLOGY 2022; 33:185602. [PMID: 35030544 DOI: 10.1088/1361-6528/ac4b7c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) materials with mono or few layers have wide application prospects, including electronic, optoelectronic, and interface functional coatings in addition to energy conversion and storage applications. However, the exfoliation of such materials is still challenging due to their low yield, high cost, and poor ecological safety in preparation. Herein, a safe and efficient solid suspension-improving method was proposed to exfoliate hexagonal boron nitride nanosheets (hBNNSs) in a large yield. The method entails adding a permeation barrier layer in the solvothermal kettle, thus prolonging the contact time between the solvent and hexagonal boron nitride (hBN) nanosheet and improving the stripping efficiency without the need for mechanical agitation. In addition, the proposed method selectively utilizes a matching solvent that can reduce the stripping energy of the material and employs a high-temperature steam shearing process. Compared with other methods, the exfoliating yield ofhBNNSs is up to 42.3% at 150 °C for 12 h, and the strategy is applicable to other 2D materials. In application, the ionic conductivity of a PEO/hBNNSs composite electrolytes reached 2.18 × 10-4S cm-1at 60 °C. Overall, a versatile and effective method for stripping 2D materials in addition to a new safe energy management strategy were provided.
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Affiliation(s)
- Xuewen Zheng
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Haifeng Cong
- School of Chemical Engineering and Technology Tianjin University, Tianjin 300072, People's Republic of China
| | - Ting Yang
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Kemeng Ji
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Chengyang Wang
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Mingming Chen
- Key Laboratory for Green Chemical Technology of MOE, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
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17
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Le K, Zhang X, Zhao Q, Liu Y, Yi P, Xu S, Liu W. Controllably Doping Nitrogen into 1T/2H MoS 2 Heterostructure Nanosheets for Enhanced Supercapacitive and Electrocatalytic Performance by Low-Power N 2 Plasma. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44427-44439. [PMID: 34506106 DOI: 10.1021/acsami.1c12973] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Molybdenum disulfide (MoS2) is a promising candidate for use as a supercapacitor electrode material and non-noble-metal electrocatalyst owing to its relatively high theoretical specific capacitance, Pt-like electronic feature, and graphene-like structure. However, insufficient electrochemically active sites along with poor conductivity significantly hinder its practical application. Heteroatom doping and phase engineering have been regarded as effective ways to overcome the inherent limitations of MoS2 and enhance its ion storage and electrocatalytic performance. In this study, a plasma-assisted nitrogen-doped 1T/2H MoS2 heterostructure has been proposed for the first time, resulting in excellent supercapacitor performance and hydrogen evolution reaction activity. XPS, Raman, and TEM analysis results indicate that N atoms have been successfully doped into MoS2 nanosheets via room-temperature low-power N2 plasma, and the 1T/2H hybrid phase is maintained. As expected, the 1T/2H MoS2 heterostructure after a 10 min plasma treatment displayed a much boosted supercapacitive performance with a high specific capacitance of 410 F g-1 at 1 A g-1 and an excellent hydrogen evolution property with a low overpotential of 131 mV vs RHE at 10 mA cm-2 for hydrogen evolution reaction. The excellent performance is superior to most of the recently reported outstanding MoS2-based electrode and electrocatalytic materials. Moreover, the as-assembled flexible symmetric supercapacitor shows a high specific capacitance of 84.8 F g-1 and superior mechanical robustness with 84.5% capacity retention after 2000 bending cycles.
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Affiliation(s)
- Kai Le
- The State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Qingdao Center of Resource Chemistry & New Materials, Qingdao 266071, China
| | - Xiang Zhang
- State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
| | - Qi Zhao
- The State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China
| | - Yuzhen Liu
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Peng Yi
- The State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China
| | - Shusheng Xu
- The State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Qingdao Center of Resource Chemistry & New Materials, Qingdao 266071, China
| | - Weimin Liu
- The State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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18
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Schmidt A, Ramos MK, Ferreira CM, Braz BA, Zarbin AJ. Molybdenum-based materials/carbon nanotubes nanocomposites prepared as thin and transparent films for aqueous K-ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138500] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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García-Dalí S, Paredes JI, Villar-Rodil S, Martínez-Jódar A, Martínez-Alonso A, Tascón JMD. Molecular Functionalization of 2H-Phase MoS 2 Nanosheets via an Electrolytic Route for Enhanced Catalytic Performance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33157-33171. [PMID: 34251180 PMCID: PMC8397248 DOI: 10.1021/acsami.1c08850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
The molecular functionalization of two-dimensional MoS2 is of practical relevance with a view to, for example, facilitating its liquid-phase processing or enhancing its performance in target applications. While derivatization of metallic 1T-phase MoS2 nanosheets has been relatively well studied, progress involving their thermodynamically stable, 2H-phase counterpart has been more limited due to the lower chemical reactivity of the latter. Here, we report a simple electrolytic strategy to functionalize 2H-phase MoS2 nanosheets with molecular groups derived from organoiodides. Upon cathodic treatment of a pre-expanded MoS2 crystal in an electrolyte containing the organoiodide, water-dispersible nanosheets derivatized with acetic acid or aniline moieties (∼0.10 molecular groups inserted per surface sulfur atom) were obtained. Analysis of the functionalization process indicated it to be enabled by the external supply of electrons from the cathodic potential, although they could also be sourced from a proper reducing agent, as well as by the presence of intrinsic defects in the 2H-phase MoS2 lattice (e.g., sulfur vacancies), where the molecular groups can bind. The acetic acid-functionalized nanosheets were tested as a non-noble metal-based catalyst for nitroarene and organic dye reduction, which is of practical utility in environmental remediation and chemical synthesis, and exhibited a markedly enhanced activity, surpassing that of other (1T- or 2H-phase) MoS2 materials and most non-noble metal catalysts previously reported for this application. The reduction kinetics (reaction order) was seen to correlate with the net electric charge of the nitroarene/dye molecules, which was ascribed to the distinct abilities of the latter to diffuse to the catalyst surface. The functionalized MoS2 catalyst also worked efficiently at realistic (i.e., high) reactant concentrations, as well as with binary and ternary mixtures of the reactants, and could be immobilized on a polymeric scaffold to expedite its manipulation and reuse.
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20
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A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2515-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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21
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Han W, Wang S, Li X, Ma B, Du M, Zhou L, Yang Y, Zhang Y, Ge H. Effect of Fe, Co and Ni promoters on MoS 2 based catalysts for chemoselective hydrogenation of nitroarenes. RSC Adv 2020; 10:8055-8065. [PMID: 35497838 PMCID: PMC9049892 DOI: 10.1039/d0ra00320d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/17/2020] [Indexed: 12/17/2022] Open
Abstract
The effect of Fe, Co and Ni promoters on supported MoS2 catalysts for hydrogenation of nitroarenes were systematically investigated via experiment, characterization and DFT calculation. It was found that the addition of promoters remarkably improved the reaction activity in a sequence of Ni > Co > Fe > Mo. Meanwhile Ni promoted catalyst with the best performance showed good recyclability and chemoselectivity for a wide substrate scope. The characterization results revealed that the addition of promoters decreased the interaction between Mo and support and facilitated the reductive sulfidation of Mo species to produce more coordinated unsaturated sites (CUS). DFT calculations showed that the addition of promoters increased the formation of CUS, and enhanced the adsorption of hydrogen. The influence degree of promoters followed the sequence Ni > Co > Fe > Mo, which was consistent with those of the activities. Nitrobenzene hydrogenation and hydrogen activation occurred at the S and Mo edge, respectively. The adsorbed hydrogen diffused from the Mo edge to the S edge to participate in the hydrogenation reaction. Mechanism investigation showed that the main reason for increased activity by the addition of promoters was the increase of amounts of CUS and the secondary reason was the augmentation of intrinsic activity of CUS. The present studies give a new understanding for promoter modified MoS2 catalysts applied for hydrogenation of nitroarenes. The addition of promoters remarkably improved the activity for hydrogenation of nitroarenes in a sequence of Ni > Co > Fe > Mo and the amount of CUS active center was supposed to be the main reason to influence the reaction activity.![]()
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Affiliation(s)
- Wenpeng Han
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China.,University of Chinese Academy of Sciences Beijing 100049 China
| | - Shanmin Wang
- Department of Physics, Southern University of Science & Technology Shenzhen Guangdong 518055 China
| | - Xuekuan Li
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Ben Ma
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Mingxian Du
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Ligong Zhou
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Ying Yang
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Ye Zhang
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Hui Ge
- Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
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