Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 75, Issue 11, Pages 1205-1209Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2014.06.010
Keywords
Chalcogenides; Chemical synthesis; X-ray diffraction; Electrochemical properties
Funding
- National Natural Science Foundation of China (NSFC) [51272128, 51302152, 51302153]
- Education Office of Hubei Province [D20131303, Q20111209]
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CuS/graphene composite has been synthesized by the one-pot hydrothermal method using thiourea as the sulfur source and reducing agent. The formation of CuS nanoparticles and the reduction of graphene oxide occur simultaneously during the hydrothermal process, which enables a uniform dispersion of CuS nanoparticles on the graphene nanosheets. The electrochemical performance of CuS/graphene composite was studied as anode materials for lithium ion batteries. The obtained CuS/graphene composite exhibits a relative high reversible capacity and good cycling stability. The good electrochemical performance of CuS/graphene composite can be attributed to graphene, which improves the electronic conductivity of composite and enhances the interfacial stability of electrode and electrolyte. (C) 2014 Elsevier Ltd. All rights reserved.
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