Journal
ELECTROCHIMICA ACTA
Volume 66, Issue -, Pages 271-278Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.01.094
Keywords
Mn3O4; MnO; Graphene; Graphite nanosheet; Electrochemical properties
Categories
Funding
- Zhejiang University, China
- Fundamental Research Funds for the Central Universities [2010QNA4003]
- Ph.D. Programs Foundation of Ministry of Education of China [20100101120024]
- Foundation of Education Office of Zhejiang Province [Y201016484]
- Science Technology Department of Zhejiang Province [2011R10021]
- National Natural Science Foundation of China [51101139]
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Graphite nanosheet anchored with nanocrystal manganese oxide (Mn3O4, MnO) was synthesized by a facile in situ one-pot solvothennal route. It was found that nanosized Mn3O4 and MnO particles (30-50 nm) were homogeneously anchored on graphite nanosheet. During the hydrothermal reaction, the reduction of graphite oxide to graphite nanosheet and the formation of manganese oxide occur simultaneously, forming a manganese-oxide/graphite nanosheet sandwich structure. In this sandwich structure, the electrochemical properties of Mn3O4 and MnO can be obviously improved because of the buffering, confining and conducting effects of the graphite nanosheet. The good electrochemical performance of manganese-oxide/graphite nanosheet composites makes them potential application as anodes in Li-ion batteries. (C) 2012 Elsevier Ltd. All rights reserved.
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