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Dr. Qingxin Chu, Juan Du, Wenbo Lu, Guohui Chang, Zhicai Xing, Haiyan Li, Chenjiao Ge, Lei Wang, Yonglan Luo, Abdullah M. Asiri, Abdulrahman O. Al-Youbi and Prof. Xuping Sun Synthesis of a MnO2 Nanosheet/Graphene Flake Composite and Its Application as a Supercapacitor having High Rate Capability ChemPlusChem 77

Article first published online: 21 AUG 2012 | DOI: 10.1002/cplu.201200178

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Hydrothermal treatment of KMnO4 and graphene flakes (GFs) leads to MnO2 nanosheets decorated on GFs. The resulting MnO2/GF (MG) composite has been tested as a supercapacitor electrode in aqueous electrolyte and found to exhibit good cycling stability with a specific capacitance of 147 Fg−1 at a current density of 5 Ag−1 (see figure).

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