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Xu Z, Liu X, Yao K, Ren Y, Li J, Shen X, Li Z. 1T MoS 2growth from exfoliated MoS 2nucleation as high rate anode for sodium storage. NANOTECHNOLOGY 2021; 33:025602. [PMID: 34610583 DOI: 10.1088/1361-6528/ac2d09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
Recently, metallic 1T MoS2has been investigated due to its excellent performance in electrocatalysts, photocatalysts, supercapacitors and secondary batteries. However, there are only a few fabrication methods to synthesize stable 1T MoS2. In this work, exfoliated MoS2is employed as seed crystals for the nucleation and growth of a stable 1T MoS2grains by an epitaxial growth strategy. The 1T MoS2displays a large interlayer spacing around 0.95 nm, excellent hydrophilia and more electrochemically active sites along the basal plane, which contribute an efficient ion/electron transport pathway and structural stability. When employed as the anode material for sodium ion batteries, the 1T MoS2electrodes can survive 500 full charge/discharge cycles with a minimum capacity loss of 0.40 mAh g-1cycle-1tested at a current density of 1.0 A g-1, and the capacity degradation is as low as 0.39 mAh g-1cycle-1at a current density of 2.0 A g-1.
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Affiliation(s)
- Zhanwei Xu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Xinyue Liu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Kai Yao
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Yuchuan Ren
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Jiayin Li
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Xuetao Shen
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Zhi Li
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
- University of Alberta, Chemical and Materials Engineering, Edmonton, Alberta, T6G 2V4, Canada
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Mateti S, Rahman MM, Cizek P, Chen Y. In situ production of a two-dimensional molybdenum disulfide/graphene hybrid nanosheet anode for lithium-ion batteries. RSC Adv 2020; 10:12754-12758. [PMID: 35492087 PMCID: PMC9051260 DOI: 10.1039/d0ra01503b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/23/2020] [Indexed: 12/02/2022] Open
Abstract
A solvent-free, low-cost, high-yield and scalable single-step ball milling process is developed to construct 2D MoS2/graphene hybrid electrodes for lithium-ion batteries. Electron microscopy investigation reveals that the obtained hybrid electrodes consist of numerous nanosheets of MoS2 and graphene which are randomly distributed. The MoS2/graphene hybrid anodes exhibit excellent cycling stability with high reversible capacities (442 mA h g−1 for MoS2/graphene (40 h); 553 mA h g−1 for MoS2/graphene (20 h); 342 mA h g−1 for MoS2/graphene (10 h)) at a high current rate of 250 mA g−1 after 100 cycles, whereas the pristine MoS2 electrode shows huge capacity fading with a retention of 37 mA h g−1 at 250 mA g−1 current after 100 cycles. The incorporation of graphene into MoS2 has an extraordinary effect on its electrochemical performance. This work emphasises the importance of the construction of the 2D MoS2/graphene hybrid structure to prevent capacity fading issues with the MoS2 anode in lithium-ion batteries. A solvent-free, low-cost, high-yield and scalable single-step ball milling process is developed to construct 2D MoS2/graphene hybrid electrodes for lithium-ion batteries.![]()
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Affiliation(s)
- Srikanth Mateti
- Institute for Frontier Materials
- Geelong Campus
- Deakin University
- Australia
| | | | - Pavel Cizek
- Institute for Frontier Materials
- Geelong Campus
- Deakin University
- Australia
| | - Ying Chen
- Institute for Frontier Materials
- Geelong Campus
- Deakin University
- Australia
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