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.

引用

页数：9

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