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- Title
Improved structural, electronic, and electrochemical properties of MoS<sub>2</sub>/graphene oxide composite for Li-ion batteries applications.
- Authors
Niaz, Niaz Ahmad; Shakoor, Abdul; Hussain, Fayyaz; Ali, Syed Mansoor; Mahmood, Umar; Inoishi, Atsushi; Khalil, Rana Muhammad Arif; Gregory, Duncan H.
- Abstract
We describe a facile approach to fabricate MoS2 and graphene oxide (GO) composites using single-step hydrothermal method to achieve excellent electrochemical properties for energy storage applications, like lithium-ion batteries. Supportive 2D structure of MoS2 material provides direct path for the electron’s flow. MoS2 and graphene oxide (GO) composites provide large surface area for intercalation of ions into/out of active materials due to their layered morphology and also minimize the path for electron transfer. The morphology of samples is studied under XRD, SEM, and TEM. The investigation confirms the formation of composites and increment in crystallinity with doping of MoS2 on graphene oxide (GO) surface. Electrochemical properties are characterized by cyclic voltammogram (CV). As a result, composite MoS2 + GO with 3% weight ratio of graphene oxide (GO) gives best cyclic stability of 740 mAh/g at low current density 100 mA/g just after 160 cycles presenting excellent improvement in electrochemical performance as electrode material in lithium-ion batteries. The structural, electronic, and optical calculations of MoS2/graphene heterostructure have been performed using the density-functional theory. The MoS2/Graphene heterostructure reveals the zero band gap due to high electronic conductivity. The calculated absorption and optical conductivity find to be high in optical properties.
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 28, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-023-11212-0