Journal
APPLIED SURFACE SCIENCE
Volume 413, Issue -, Pages 123-128Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.03.296
Keywords
Rhenium disulfide; Transition metal dichalcogenides; Graphene; Lithium-ion batteries
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Funding
- National High Technology Research and Development Program of China [2015AA034202]
- National Natural Science Foundation of China [51372033]
- 111 Project [B13042]
- Fundamental Research Funds for the Central Universities [ZYGX2013Z001]
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Rhenium disulfide (ReS2), a two-dimensional (2D) semiconductor, has attracted more and more attention due to its unique anisotropic electronic, optical, mechanical properties. However, the facile synthesis and electrochemical property of ReS2 and its composite are still necessary to be researched. In this study, for the first time, the ReS2/reduced graphene oxide (rGO) composites have been synthesized through a facile and one-pot hydrothermal method. The ReS2/rGO composites exhibit a hierarchical, interconnected, and porous architecture constructed by nanosheets. As anode for lithium-ion batteries, the as-synthesized ReS2/rGO composites deliver a large initial capacity of 918 mAh g(-1) at 0.2 C. In addition, the ReS2/rGO composites exhibit much better electrochemical cycling stability and rate capability than that of bare ReS2. The significant enhancement in electrochemical property can be attributed to its unique architecture constructed by nanosheets and porous structure, which can allow for easy electrolyte infiltration, efficient electron transfer, and ionic diffusion. Furthermore, the graphene with high electronic conductivity can provide good conductive passageways. The facile synthesis approach can be extended to prepare other 2D transition metal dichalcogenides semiconductors for energy storage and catalytic application. (C) 2017 Elsevier B.V. All rights reserved.
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