Preparation and electrochemical performance of porous carbon derived from polypyrrole

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon letters / 33권 / 2호
ㆍ저자명 : Lili Wu, Xinguo Chen, Chang Ding, Pitao Wang, Heming Luo

목차

Abstract
1 Introduction
2 Experimental methods
2.1 Preparation of carbon precursor polypyrrole
2.2 Preparation of porous carbon materials
2.3 Structural performance characterization
2.4 Preparation of the working electrodes
2.5 Electrochemical performance testing
3 Results and discussion
3.1 Physical phase analysis
3.2 Microstructure
3.3 Surface composition and element analysis
3.4 Electrochemical performance analysis
4 Conclusion
Acknowledgements
References

영어 초록

Supercross-linked polymers are widely used as carbon precursor materials due to their abundant carbon sources and low cost. In this paper, a supercross-linked polymer was prepared by the solvothermal method. The supercross-linked polymer as a precursor and the PPyC-800-A was synthesized by activating this with KOH. The microstructure, structure, and electrochemical performances of porous carbon PPyC-800-A were studied at different of temperature and carbon alkali ratio. According to the results, the porous carbon PPyC-800-1:2 is mainly composed of a stack of spherical particles with a high surface area of 1427.03 m2 g− 1, an average pore diameter of 2.32 nm, and a high specific capacitance of 217.7 F g− 1 at a current density of 1.0 A g− 1 in a 6 M KOH electrolyte. It’s retention rate is 97.58% after 5000 constant current charges and discharges. With a specific capacitance decay rate of 21.91 percent, an energy density of 11.96 Wh kg− 1, and a power density of 500.0 W kg− 1, the current density rises from 1.0 A g− 1 to 10.0 A g− 1, exhibiting remarkable electrochemical properties, cycling stability, and energy production performance This study contributes experimental ideas to the field of supercrosslinked polymer-derived carbon materials and energy storage.

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