Effect of Morphology of ZnCo2O4 Nanostructures on Electrochemical Performance

被引：7
|
作者：
Dong, J. Y. [1 ]
Zhang, N. [2 ]
Lin, S. Y. [1 ]
Chen, T. T. [1 ]
Zhang, M. Y. [1 ]
Wu, L. L. [1 ,3 ]
Gao, H. [1 ]
Zhang, X. T. [1 ]
机构：
[1] Harbin Normal Univ, Minist Educ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Harbin 150025, Peoples R China
[2] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY USA
[3] Heilongjiang Univ Sci & Technol, Ctr Engn Training & Basic Expt, Harbin 150022, Peoples R China
来源：
NANO | 2016年 / 11卷 / 08期
关键词：
ZnCo2O4; electrochemical performance; electrode material; supercapacitors; SUPERCAPACITORS; ELECTRODES; GRAPHENE/MNO2; CAPACITANCE; MECHANISM; GROWTH; URCHIN; FOAM; MNO2;
D O I：
10.1142/S1793292016500892
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The ZnCo2O4 nanorods and nanosheets were grown on nickel foam by a facile and effective hydrothermal method, respectively. The effect of the morphologies of the nanostructures on electrochemical performance was investigated. Importantly, ZnCo2O4 nanorod electrodes with a high specific surface area exhibited a higher specific capacitance of 2457.4 F g(-1) at 2 A g(-1) and remarkable cycling stability with capacitance retention of 97.7% after 1000 cycles, which are superior to those of ZnCo2O4 nanosheet electrodes. Such a result is well explained. The investigation on the electrochemical properties of these two nanostructures as electrodes confirmed that the morphology of active materials has an important impact on electrochemical properties.
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页数：9
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