title: 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.
authors: Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors: Xianxia
authors: X
authors: Yuan
authors: Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors: Lin
authors: L
authors: Li
authors: Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors: Zhong
authors: Z
authors: Ma
authors: Department of Materials Science, Fudan University, Shanghai, 200433, China.
authors: Xuebin
authors: X
authors: Yu
authors: The School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China.
authors: Xiufang
authors: X
authors: Wen
authors: Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors: Zi-Feng
authors: ZF
authors: Ma
authors: Energy, Mining &Environment, National Research Council of Canada, Vancouver, BC V6T 1W5, Canada.
authors: Lei
authors: L
authors: Zhang
authors: Department of Chemical and Biochemical Engineering, University of British Columbia, Vancouver, Canada.
authors: David P
authors: DP
authors: Wilkinson
authors: Energy, Mining &Environment, National Research Council of Canada, Vancouver, BC V6T 1W5, Canada.
authors: Jiujun
authors: J
authors: Zhang