Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5353386 | Applied Surface Science | 2014 | 7 Pages |
Abstract
In this paper, we demonstrate a facile one-pot approach for the synthesis of reduced graphene oxide-ZnO (Gr-ZnO) hybrids. Structural analysis revealed a homogeneous distribution of ZnO nanorods are inserted in graphene nanosheets, formed a sandwiched architecture. The Gr-ZnO material demonstrates superior electrochemical performance with high specific capacitance (140Â FÂ gâ1 even at the scan rate of 500Â mVÂ sâ1) and long-term cycle stability (94% capacitance retention over 2000 cycles). The improved supercapacitance property of these materials could be ascribed to the increased the specific surface of graphene sheets by ZnO nanorods inserted. These results demonstrate the potential of the Gr-ZnO hybrid nanocomposites as an electrode in high-performance supercapacitors.
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Authors
Z. Qin, Z.J. Li, G.Q. Yun, K. Shi, K. Li, B.C. Yang,