期刊
JOURNAL OF POWER SOURCES
卷 229, 期 -, 页码 6-11出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2012.11.090
关键词
Graphene; Zinc stannate; Nanohybrid; Electrochemical performance; In situ route
资金
- National Natural Science Foundation of China [51101139]
- Ph.D. Programs Foundation of Ministry of Education of China [20100101120024]
- Foundation of Education Office of Zhejiang Province [Y201016484]
- Qianjiang Talents Project of Science Technology Department of Zhejiang Province [2011R10021]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
A Zn2SnO4-nanocrystals/graphene-nanosheets (Zn2SnO4/G) nanohybrid has been prepared by a facile in situ hydrothermal route using SnCl4 center dot 5H(2)O, ZnCl2 and graphite oxide (GO) as the precursors and N2H4 center dot H2O as the mineralizer and reducing agent. The formation of Zn2SnO4 and the reduction GO occur simultaneously during the hydrothermal process. The Zn2SnO4 nanocrystals are uniformly dispersed and immobilized by the graphene nanosheets reduced from GO. The direct restacking of the hydrophobic graphene sheets is inhibited by loading Zn2SnO4 nanocrystals as the spacers. Zn2SnO4/G shows an improved electrochemical performance than bare Zn2SnO4 due to the conducting, dispersing and immobilizing effects of graphene. (C) 2012 Elsevier B.V. All rights reserved.
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