Investigation of the effects of Pt/Pd composition and PVP content on the activity of Pt/Pd core-shell catalysts

Electrochemistry Communications

卷:115

Takashi Iijima¹  Kohei Uosaki²  Masataka Hiyoshi³  Katsumasa Matsumoto⁴  Hidenori Noguchi⁵ 

[1] Development Bureau, 1-8 Fuso-Cho, Amagasaki 660-0891, Japan;

[2] Development Bureau, 20-1 Shintomi, Futtu 293-8511, Japan;

[3] Nippon Steel Corporation, Technical Research &

[4] Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan;

关键词: Polymer electrolyte fuel cell;    Core–shell catalyst;    MEA;    SEIRAS;   

DOI  :  

来源: DOAJ

【 摘 要 】

Among the various fuel cell electrocatalysts studied for the cathodic oxygen reduction reaction and anodic fuel oxidation reaction, platinum-based materials have attracted much attention over the past decade because of their high activity for both reactions. However, Pt-based catalysts suffer from several problems, such as their high cost, low abundance, and low long-term stability. Bimetallic Pt-based nanostructures with a core–shell structure have been considered as candidate cathode catalysts for polymer electrolyte fuel cells. In this study, a Pt/Pd/C catalyst was successfully synthesized by the hydrogen-sacrificial protection method to improve the performance of a membrane electrode assembly. Furthermore, on the basis of electrochemical spectroscopic findings, it was shown that control of the surface structure is an effective strategy to improve the cell performance of the Pt/Pd/C catalyst.

【 授权许可】

Unknown