Controllable Synthesis of Hollow Multishell Structured Co3O4 with Improved Rate Performance and Cyclic Stability for Supercapacitors |
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| Authors: | WANG Cong WANG Jiangyan HU Wenping WANG Dan |
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| Affiliation: | 1. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;2. Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, P. R. China |
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| Abstract: | Hollow multishelled structures(HoMSs) Co3O4 with specially appointed shell number(double-, triple- and quadruple-) were accurately prepared by a sequential templating approach. Due to the superiorities of inimitable porous multishelled structure, triple-HoMSs Co3O4 achieved the best performance among all the samples with a specific capacitance of 1028.9 F/g at 10 mV/s and 688.2 F/g at 0.5 A/g, respectively. Furthermore, the electrode delivered a high rate performance(89.8% retention at 10 A/g) and excellent cycle stability(6.8% loss over 2000 cycles), showing a great promise for practical application in the future. |
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| Keywords: | Hollow multishelled structure Cobalt oxide Supercapacitor |
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