期刊
JOURNAL OF POWER SOURCES
卷 247, 期 -, 页码 204-212出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.08.096
关键词
Antimony; Graphene; Nanohybrid; Lithium storage; Sodium storage
资金
- National Basic Research Program of China [2013CB934001]
- National Natural Science Foundation of China [51101139]
- Ph.D. Programs Foundation of Ministry of Education of China [20100101120024]
- Qianjiang Talents Project of Science Technology Department of Zhejiang Province [2011R10021]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
A Sb/graphene nanohybrid has been synthesized by a facile in situ solvothermal route using SbCl3 and graphite oxide as the precursors and NaBH4 as the reducing agent. Microstructural observation reveals the sheet-like nanostructure consisting of Sb nanocrystals (50-100 nm) attached on few-layer graphene nanosheets. The in situ introduced graphene uniformly disperses the Sb nanocrystals, while the attached Sb nanocrystals hinder the restacking of the graphene nanosheets. The introduction of graphene remarkably improves the electrochemical Li and Na-storage properties of Sb due to the combined buffering, confining and conducting effects of graphene. The underlying mechanism for the enhanced Li and Na-storage properties has been investigated by chemical diffusion coefficient and electrochemical impedance spectroscopy measurement. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据