不同方法制备的ZnMn<sub>2</sub>O<sub>4</sub>/RGO复合材料电化学性能对比分析

李莹; 苏钰; 李军; 陈成

doi:10.12187/2020.03.006

May 2020

Article Contents

LI Ying, SU Yu, LI Jun and et al. Comparative analysis of electrochemical properties of ZnMn2O4/RGO composites prepared by different methods[J]. Journal of Light Industry, 2020, 35(3): 44-51. doi: 10.12187/2020.03.006

Citation: LI Ying, SU Yu, LI Jun and et al. Comparative analysis of electrochemical properties of ZnMn2O4/RGO composites prepared by different methods[J]. Journal of Light Industry, 2020, 35(3): 44-51. doi: 10.12187/2020.03.006 shu

Comparative analysis of electrochemical properties of ZnMn₂O₄/RGO composites prepared by different methods

School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201600, China

Received Date: 2019-08-25
Accepted Date: 2020-02-22

Abstract

Using manganese acetate, zinc acetate and self-made graphene oxide as raw materials, ZnMn₂O₄/RGO composites were prepared by solvothermal method and hydrothermal method, respectively, and their electrochemical properties were studied comparatively. The results showed that the addition of RGO increased the specific surface area of the ZnMn₂O₄/RGO composites and improved the electrochemical properties of the ZnMn₂O₄ material; under the condition of a current density of 2 A/g, the ZnMn₂O₄/RGO composites prepared by solvothermal method and hydrothermal method had specific capacitances of 763.4 F/g and 127.8 F/g, respectively. After 500 cycles of experiments, the capacitance retention rates of the composites made by these two methods were 84.9% and 83.0%, respectively. The ZnMn₂O₄/RGO composites made by thermal method had better comprehensive properties.
- ZnMn₂O₄/RGO composites,
- solvothermal method,
- hydrothermal method,
- graphene,
- supercapacitor
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