In situ production of a two-dimensional molybdenum disulfide/graphene hybrid nanosheet anode for lithium-ion batteries
| Autor: | Ying Chen, Srikanth Mateti, Mokhlesur Rahman, Pavel Cizek |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Graphene General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 7. Clean energy 0104 chemical sciences law.invention Anode chemistry.chemical_compound chemistry Chemical engineering law Electrode Lithium 0210 nano-technology Ball mill Molybdenum disulfide Nanosheet |
| Zdroj: | RSC Advances. 10:12754-12758 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/d0ra01503b |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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