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Novel nanowire-structured polypyrrole-cobalt composite as efficient catalyst for oxygen reduction reaction.

ABSTRACT: A novel nanowire-structured polypyrrole-cobalt composite, PPy-CTAB-Co, is successfully synthesized with a surfactant of cetyltrimethylammounium bromide (CTAB). As an electro-catalyst towards oxygen reduction reaction (ORR) in alkaline media, this PPy-CTAB-Co demonstrates a superior ORR performance when compared to that of granular PPy-Co catalyst and also a much better durability than the commercial 20?wt% Pt/C catalyst. Physiochemical characterization indicates that the enhanced ORR performance of the nanowire PPy-CTAB-Co can be attributed to the high quantity of Co-pyridinic-N groups as ORR active sites and its large specific surface area which allows to expose more active sites for facilitating oxygen reduction reaction. It is expected this PPy-CTAB-Co would be a good candidate for alkaline fuel cell cathode catalyst.

SUBMITTER: Yuan X

PROVIDER: S-EPMC4748222 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Novel nanowire-structured polypyrrole-cobalt composite as efficient catalyst for oxygen reduction reaction.

Yuan Xianxia X Li Lin L Ma Zhong Z Yu Xuebin X Wen Xiufang X Ma Zi-Feng ZF Zhang Lei L Wilkinson David P DP Zhang Jiujun J

Scientific reports 20160210

A novel nanowire-structured polypyrrole-cobalt composite, PPy-CTAB-Co, is successfully synthesized with a surfactant of cetyltrimethylammounium bromide (CTAB). As an electro-catalyst towards oxygen reduction reaction (ORR) in alkaline media, this PPy-CTAB-Co demonstrates a superior ORR performance when compared to that of granular PPy-Co catalyst and also a much better durability than the commercial 20 wt% Pt/C catalyst. Physiochemical characterization indicates that the enhanced ORR performance ...[more]

PMID: 26860889

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