Nitrogen, Fluorine co-doped Silk-derived Carbon for Electrochemical Oxygen Reduction with High Performance in Alkaline Solution

Authors

Fang-fang LIU, chool of Chemical Engineering and Environment, Weifang University of Science and Technology, Shouguang, Shandong, 262700, China
Hong-liang PENG, ey Lab for Fuel Cell Technology of Guangdong Province & Key Lab of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China;
Shi-jun LIAO, ey Lab for Fuel Cell Technology of Guangdong Province & Key Lab of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China;Follow

Corresponding Author

Shi-jun LIAO(chsjliao@scut.edu.cn)

Abstract

A high-performance, doped carbon-based catalyst was synthesized by pyrolyzing hydrothermally treated silkworm cocoon. The effects of preparation conditions and fluorine promotion on various catalysts’ performance were investigated. The catalyst prepared under optimal conditions and doped with nitrogen and fluorine possessed the high specific surface area of more than 1000 m²•g^-1 and contained 3.5 and 7.3% (by mass, the same below) N and F, respectively. The activity of the catalyst toward oxygen reduction reaction in an alkaline medium was comparable to that of commercial Pt/C, showing both superior tolerance to methanol poisoning and better durability. Doping with fluorine was found to significantly enhance the performance of catalyst. Possible mechanism for the addition of fluorine is suggested.

Graphical Abstract

DOI Link

https://doi.org/10.13208/j.electrochem.151141

Publication Date

2016-04-28

Online Available Date

2016-01-04

Revised Date

2015-12-18

Received Date

2015-11-26

Recommended Citation

Fang-fang LIU, Hong-liang PENG, Shi-jun LIAO. Nitrogen, Fluorine co-doped Silk-derived Carbon for Electrochemical Oxygen Reduction with High Performance in Alkaline Solution[J]. Journal of Electrochemistry, 2016 , 22(2): 151241.
DOI: 10.13208/j.electrochem.151141
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss2/14