期刊
RSC ADVANCES
卷 2, 期 17, 页码 6736-6740出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra20503c
关键词
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资金
- National High Technology Research and Development Program of China [2009AA03Z217]
- National Natural Science Foundation of China [90922028, 51002053]
- Chinese Ministry of Education [211204]
A simple method has been implemented to prepare a stable and effective redox-active alkaline electrolyte by doping m-phenylenediamine into a conventional KOH electrolyte for a carbon-based supercapacitor. The quick electron transfer and reversible Faradic process in the new electrolyte system results in additional pseudocapacitive contribution for a carbon-based supercapacitor. The specific capacitance of the supercapacitor based on the new electrolyte is 78.01 F g(-1), which is an increase of 114.16% over that of a supercapacitor based on a conventional KOH electrolyte (36.43 F g(-1)). Additionally, the supercapacitor exhibits an excellent cyclical stability.
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