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Reduced Graphene‐Wrapped MnO 2 Nanowires Self‐Inserted with Co 3 O 4 Nanocages: Remarkable Enhanced Performances for Lithium‐Ion Anode Applications
Author(s) -
Zhu Qi,
Li Yunhui,
Gao Ying,
Wang Xiao,
Song Shuyan
Publication year - 2016
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.201600456
Subject(s) - nanocages , faraday efficiency , anode , graphene , materials science , nanowire , composite number , chemical engineering , lithium (medication) , electrode , nanotechnology , ion , chemistry , composite material , catalysis , medicine , biochemistry , engineering , organic chemistry , endocrinology
A simple synthetic approach for graphene‐templated nanostructured MnO 2 nanowires self‐inserted with Co 3 O 4 nanocages is proposed in this work. The Co 3 O 4 nanocages were penetrated in situ by MnO 2 nanowires. As an anode, the as‐obtained MnO 2 –Co 3 O 4 –RGO composite exhibits remarkable enhanced performance compared with the MnO 2 –RGO and Co 3 O 4 –RGO samples. The MnO 2 –Co 3 O 4 –RGO electrode delivers a reversible capacity of up to 577.4 mA h g −1 after 400 cycles at 500 mA g −1 and the Coulombic efficiency of MnO 2 –Co 3 O 4 –RGO is about 96 %.