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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

Publication Date

2016-04-28

Online Available Date

2016-01-04

Revised Date

2015-12-18

Received Date

2015-11-26

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