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Synthesis of MoS 2 @C Nanotubes Via the Kirkendall Effect with Enhanced Electrochemical Performance for Lithium Ion and Sodium Ion Batteries
Author(s) -
Zhang Xueqian,
Li Xiaona,
Liang Jianwen,
Zhu Yongchun,
Qian Yitai
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201600043
Subject(s) - faraday efficiency , materials science , electrochemistry , kirkendall effect , lithium (medication) , anode , nanotube , carbon nanotube , chemical engineering , ion , composite number , amorphous solid , sodium , nanotechnology , electrode , composite material , chemistry , organic chemistry , metallurgy , medicine , engineering , endocrinology
A MoS 2 @C nanotube composite is prepared through a facile hydrothermal method, in which the MoS 2 nanotube and amorphous carbon are generated synchronically. When evaluated as an anode material for lithium ion batteries (LIB), the MoS 2 @C nanotube manifests an enhanced capacity of 1327 mA h g −1 at 0.1 C with high initial Coulombic efficiency (ICE) of 92% and with capacity retention of 1058.4 mA h g −1 (90% initial capacity retention) after 300 cycles at a rate of 0.5 C. A superior rate capacity of 850 mA h g −1 at 5 C is also obtained. As for sodium ion batteries, a specific capacity of 480 mA h g −1 at 0.5 C is achieved after 200 cycles. The synchronically formed carbon and stable hollow structure lead to the long cycle stability, high ICE, and superior rate capability. The good electrochemical behavior of MoS 2 @C nanotube composite suggests its potential application in high‐energy LIB.