MnO<sub>2</sub>/石墨烯/聚噻吩复合材料的制备与充放电性能研究

闫福丰; 张园厂; 董晓东; 张治红; 何领好

doi:10.3969/j.issn.2095-476X.2014.04.001

July 2014

Article Contents

YAN Fu-feng, ZHANG Yuan-chang, DONG Xiao-dong, et al. Study on preparation and charge-discharge properties of MnO2/graphene/polythiophene composites[J]. Journal of Light Industry, 2014, 29(4): 1-5. doi: 10.3969/j.issn.2095-476X.2014.04.001

Citation: YAN Fu-feng, ZHANG Yuan-chang, DONG Xiao-dong, et al. Study on preparation and charge-discharge properties of MnO2/graphene/polythiophene composites[J]. Journal of Light Industry, 2014, 29(4): 1-5. doi: 10.3969/j.issn.2095-476X.2014.04.001 shu

Study on preparation and charge-discharge properties of MnO₂/graphene/polythiophene composites

College of International Education, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China

Corresponding author: HE Ling-hao,
Received Date: 2014-06-12
Available Online: 2014-07-15

Abstract

The MnO₂/graphene/polythiophene composites were synthesized by in-situ hydrothermal oxidation-reduction method.The morphology and crystallinity of the composites were characterized with scanning electron microscope (SEM) and X-ray diffraction spectroscopy (XRD).The electrochemical charge-discharge performance of the nanocomposites was tested by the battery test system.The results showed that globulg MnO₂ was grown both on the surface of graphene and the gap of large particles of polythiophene in the nanocomposites. The specific capacity of synthesized MnO₂/G/PTh composites was 300 mAh/g after the cycle of 20 times,the first charge and discharge efficiency of the nanocomposites with the ratio of 20:1:0.67 was 46.5%,the discharge capacity was the highest. The charge-discharge stability and coulombic efficiency of the MnO₂/graphene/polythiophene nanocomposites were better than that of pristine MnO₂.
- MnO₂,
- graphene,
- polythiophene,
- nanocomposite,
- charge-discharge property
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