Surfactant modified platinum based fuel cell cathode studied by X-ray absorption spectroscopy

Julia Melke,Ditty Dixon, Lars Riekehr,N. Benker,Joachim Langner,C. Lentz,Hikmet Sezen,Alexei Nefedov,Christof Wöll,Helmut Ehrenberg,Christina Roth

Journal of Catalysis（2018）

引用 3|浏览49

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摘要

•Pt catalyst with adsorbed TTAB is used as fuel cell cathode.•Due to the adsorbed TTAB fewer oxygen is adsorbed to the Pt surface as compared to a commercial Pt catalyst.•The electronic structure of Pt catalyst is modified by the adsorbed TTAB leading to faster ORR kinetics.•The TTAB modified Pt catalyst shows improved stability compared to a commercial Pt catalyst.

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关键词

Polymer electrolyte membrane fuel cell,Oxygen reduction reaction,X-Ray absorption spectroscopy,Tetradecyltrimethylammonium bromide,Platinum catalyst,Electronic structure modification

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