Chemical Research in Chinese Universities ›› 2020, Vol. 36 ›› Issue (1): 68-73.doi: 10.1007/s40242-019-0040-3

• Articles • Previous Articles     Next Articles

Controllable Synthesis of Hollow Multishell Structured Co3O4 with Improved Rate Performance and Cyclic Stability for Supercapacitors

WANG Cong1,2, WANG Jiangyan1, HU Wenping2, WANG Dan1   

  1. 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
  • Received:2019-11-08 Revised:2019-12-03 Online:2020-02-01 Published:2020-01-20
  • Contact: WANG Dan
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21590795, 21821005, 51772296, 51772294, 51702321, 51972306, 51802306).

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.

Key words: Hollow multishelled structure, Cobalt oxide, Supercapacitor