Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 44, Pages 17916-17921Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm12589c
Keywords
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Funding
- Program for Professor of Special Appointment (Eastern Scholar)
- National Natural Science Foundation of China [50971085]
- Shanghai Municipal Government [09JC1406100, S30109]
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This paper reports CuO-graphene layer-by-layer hybrid nanostructures by a fast microwave irradiation method. The CuO nanosheets or fusiform morphologies were obtained by varying the reaction temperature of microwave heating. These CuO nanostructures were uniformly dispersed on graphene nanosheets (GNS), forming layer-by-layer nanostructures after drying and stacking. CuO nanostructures were designed as the spacer to prevent the reassembly of GNS to graphite sheets so that the unique properties relative to few-layer graphene nanosheets (GNS) could be retained in the practical applications. When evaluated as anode materials for Li-ion batteries, the CuO-GNS composites showed substantially enhanced lithium-storage capacities compared to CuO materials and GNS, which has been attributed to the improvement of structure stability and electrical contact by GNS for a long time upon repetitive cycling.
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