J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (9): 1538-1543.DOI: 10.1016/j.jmst.2017.12.018
• Orginal Article • Previous Articles Next Articles
Guoxiong Zhanga, Yuemei Chena, Yingjian Jianga, Chuan Linb, Yigang Chena*(), Haibo Guoa
Received:
2017-07-21
Revised:
2017-08-29
Accepted:
2017-11-21
Online:
2018-09-20
Published:
2018-09-25
Contact:
Chen Yigang
Guoxiong Zhang, Yuemei Chen, Yingjian Jiang, Chuan Lin, Yigang Chen, Haibo Guo. Formation of CMK-3/Co3O4 nanosheets on nickel foam with markedly enhanced pseudocapacitive properties[J]. J. Mater. Sci. Technol., 2018, 34(9): 1538-1543.
Fig. 2. FESEM (a, b) and TEM (c, d) images of Co3O4 film (a, c) and CMK-3/Co3O4 hybrid film (b, d) and SAED pattern (e) and HRTEM image (f) of CMK-3/Co3O4 hybrid film.
Fig. 5. Discharge curves of bare Co3O4 film (a), CMK-3/Co3O4 hybrid film (b) with different current densities and specific capacitance of bare Co3O4 film and CMK-3/Co3O4 hybrid film at different current densities (c).
Fig. 6. Chronoamperometry curves for bare Co3O4 film and CMK-3/Co3O4 hybrid film tested by stepping voltages between 0 and 0.5 V (vs SCE) with a delay of 30 s at each potential.
Fig. 7. EIS of bare Co3O4 film and CMK-3/Co3O4 hybrid film (Z’ and Z” are the real and imaginary parts of impedance, respectively; the insets show the enlarged view and equivalent circuit, respectively).
Fig. 8. Cycling performance of bare Co3O4 film and CMK-3/Co3O4 hybrid film at 5 A g-1 (a), FESEM images of bare Co3O4 film (b) and CMK-3/Co3O4 hybrid film (c) after cycle life tests (The insets in b and c show the enlarged views).
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