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Graphene/sulfur hybrid nanosheets from a space-confined "sauna" reaction for high-performance lithium-sulfur
Linfeng Fei1, Xiaogang Li2, Wentuan Bi2
1Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China.
Advanced Materials (Deerfield Beach, Fla.)
|August 28, 2015
Abstract:
A space-confined "sauna" reaction system is introduced for the simultaneous reduction and functionalization of graphene oxide to unique graphene-sulfur hybrid nanosheets, in which thin layers of amorphous sulfur are tightly anchored on the graphene sheet via strong chemical bonding. Upon being used as the cathode material in lithium-sulfur batteries, the as-synthesized composite shows an excellent electrochemical performance.
