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

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DOIResolve DOI: http://doi.org/10.1038/srep20005
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TypeArticle
Journal titleScientific Reports
ISSN2045-2322
Volume6
Article number20005
AbstractA 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.
Publication date
PublisherNature Publishing Group
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Energy, Mining and Environment
Peer reviewedYes
NPARC number21277487
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Record identifier610e7fef-abd8-476d-8310-e045635ebf3e
Record created2016-03-09
Record modified2016-05-09
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