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Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium–Sulfur Battery
Author(s) -
Bao Weizhai,
Xie Xiuqiang,
Xu Jing,
Guo Xin,
Song Jianjun,
Wu Wenjian,
Su Dawei,
Wang Guoxiu
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201702387
Subject(s) - graphene , oxide , materials science , sulfur , cathode , composite number , lithium (medication) , lithium–sulfur battery , battery (electricity) , chemical engineering , graphene oxide paper , inorganic chemistry , nanotechnology , composite material , chemistry , metallurgy , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
Three‐dimensional metal carbide MXene/reduced graphene oxide hybrid nanosheets are prepared and applied as a cathode host material for lithium–sulfur batteries. The composite cathodes are obtained through a facile and effective two‐step liquid‐phase impregnation method. Owing to the unique 3 D layer structure and functional 2 D surfaces of MXene and reduced graphene oxide nanosheets for effective trapping of sulfur and lithium polysulfides, the MXene/reduced graphene oxide/sulfur composite cathodes deliver a high initial capacity of 1144.2 mAh g −1 at 0.5 C and a high level of capacity retention of 878.4 mAh g −1 after 300 cycles. It is demonstrated that hybrid metal carbide MXene/reduced graphene oxide nanosheets could be a promising cathode host material for lithium–sulfur batteries.