标题:Uniformly dispersed Sn-MnO@C nanocomposite derived from MnSn(OH)6precursor as anode material for lithium-ion batteries
作者:Fan, Long ;Zhu, Yongchun ;Zhang, Jingjing ;Liang, Jianwen ;Wang, Lili ;Wei, Denghu ;Li, Xiaona ;Qian, Yitai
作者机构:[Fan, Long ;Zhu, Yongchun ;Zhang, Jingjing ;Liang, Jianwen ;Wang, Lili ;Wei, Denghu ;Li, Xiaona ;Qian, Yitai ] Department of Chemistry, University of 更多
通讯作者:Zhu, Y
来源:Electrochimica Acta
出版年:2014
卷:121
页码:21-26
DOI:10.1016/j.electacta.2013.12.117
摘要:Uniformly dispersed carbon coated Sn-MnO nanocomposite (Sn-MnO@C) has been fabricated by thermal annealing of MnSn(OH)6nanoparticles precursor in acetylene/argon gas (1/9; v/v). Benefiting from this unique method, the synchronously formed Sn and MnO nanocrystals both with size about 12 nm were uniformly dispersed in the amorphous carbon matrix. Meanwhile, a porous structure appeared which could be attributed to the dehydration of MnSn(OH)6in the calcination process. As the anode for lithium-ion batteries, the Sn-MnO@C nanocomposite demonstrates a reversible capacity of 684 mA h g-1after 280 cycles at a current of 100 mA g-1. The fine electrochemical performance mainly attributes to uniformly dispersed nanoparticles, porous structure as well as amorphous carbon matrix coating. © 2014 Elsevier Ltd.
收录类别:EI
资源类型:期刊论文
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