Journal
MATERIALS LETTERS
Volume 68, Issue -, Pages 336-339Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2011.10.092
Keywords
Carbon materials; Nanocomposites; Energy storage and conversion
Funding
- Chinese Academy of Sciences [KJCX2-YW-W26]
- Beijing Municipal Science and Technology Commission [Z111100056011007]
- National Natural Science Foundation of China [21001103, 51025726]
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We reported a facile approach to synthesize nanocomposites with Mn3O4 nanoparticles anchored to graphene nanosheets by one-step solvothermal process, which combined the growth of Mn3O4 nanoparticles and the reduction of graphene oxide. It was found that Mn3O4 nanoparticles with size of 3-5 nm homogeneously deposited on graphene nanosheets. The electrochemical properties of graphene/Mn3O4 nanocomposite were studied as electrode materials for supercapacitors. The graphene/Mn3O4 nanocomposite exhibited a specific capacitance of 147 F g(-1) in 1 M Na2SO4 aqueous electrolyte and a good rate property. The improved electrochemical performance may be attributed to the increased electrode conductivity in the presence of graphene network. (C) 2011 Elsevier B.V. All rights reserved.
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