• Keying Zhang

      Articles written in Bulletin of Materials Science

    • Facile synthesis of porous Co3O4 nanoplates for supercapacitor applications

      Tao Geng Li Zhang Hongyan Wang Keying Zhang Xia Zhou

      More Details Abstract Fulltext PDF

      Porous tricobalt tetraoxide (Co3O4) nanoplates with large aspect ratio have been obtained by annealing Co(OH)2 precursor nanoplates synthesized by a facile reflux method without the need for any template or surfactant. After the heat treatment, the as-obtained phase-pure Co3O4 nanoplates with a wellretained structure were applied as the electrode material for supercapacitors, and the sample exhibits excellent performance with a high specific capacitance of 225 F g–1 after 2000 charge–discharge cycles at 2 A g–1, corresponding to a retention of 97% of the initial capacitance.

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