Preparations and Applications of Layered Carbon and Layered Carbon-PbSO₄ Composite

Authors

Shu-kai ZHANG, University of Science and Technology Beijing, Beijing 100083, China;
Hao ZHANG, Research Institute of Chemical Defense, Beijing 100191, China;Follow
Wei-hua XUE, University of Science and Technology Beijing, Beijing 100083, China;
Jie CHENG, Research Institute of Chemical Defense, Beijing 100191, China;
Wen-feng ZHANG, Research Institute of Chemical Defense, Beijing 100191, China;
Gao-ping CAO, Research Institute of Chemical Defense, Beijing 100191, China;
Hai-lei ZHAO, University of Science and Technology Beijing, Beijing 100083, China;
Yu-sheng YANG, University of Science and Technology Beijing, Beijing 100083, China;Research Institute of Chemical Defense, Beijing 100191, China;

Corresponding Author

Hao ZHANG(dr.h.zhang@hotmail.com)

Abstract

The layered carbon materials (similar to graphene) have been synthesized by chemical vapor deposition (CVD) on the cheap catalyst (potassium or sodium carbonate substrate). The layered-carbon- lead sulfate (PbSO₄) composite could be prepared by in situ chemical deposition based on the layered carbon. The XRD, SEM and TEM results showed that the layered carbon materials was amorphous carbon layer, and the composite was a compound made of fine lead sulfate grains and layered carbon. Thermogravimetric analysis determined the carbon content in the composite. Adding a certain amount of layered carbon or layered-carbon-PbSO₄ composite into negative active materials of lead acid batteries, the specific capacitance and cycle performance of the batteries were significantly enhanced. The decrease in the electrochemical reaction resistance, the reduced polarization and the inhibition of sulfation, which are supported by EIS curves, charge/discharge curves and SEM images, might be responsible for the improved performance.

Graphical Abstract

Keywords

lead-acid battery, negative active materials, layered carban, layered-carbon-PbSO4 composite

DOI Link

https://doi.org/10.13208/j.electrochem.141046

Publication Date

2015-06-28

Online Available Date

2015-06-28

Revised Date

2015-03-02

Received Date

2014-10-10

Recommended Citation

Shu-kai ZHANG, Hao ZHANG, Wei-hua XUE, Jie CHENG, Wen-feng ZHANG, Gao-ping CAO, Hai-lei ZHAO, Yu-sheng YANG. Preparations and Applications of Layered Carbon and Layered Carbon-PbSO₄ Composite[J]. Journal of Electrochemistry, 2015 , 21(3): 268-272.
DOI: 10.13208/j.electrochem.141046
Available at: https://jelectrochem.xmu.edu.cn/journal/vol21/iss3/7

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