Investigation of Oxygen Reduction Reaction
and Methanol Tolerance on the Carbon
Supported PtPd Catalysts¹

Yongfu Tang^a,z, Faming Gao^a, Shichun Mu^b, Shengxue Yu^a, and Yufeng Zhao^a

^aHebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004 China

^bState Key Laboratory of Advanced Technology for Materials Synthesis and Processing,
Wuhan University of Technology, Wuhan, 430070 China

Received January 10, 2014

Abstract—Carbon supported Pt–Pd (Pt–Pd/C) catalysts with different Pt/Pd ratios were prepared by micro-
wave assisted ethylene glycol method and characterized by X-ray diffraction (XRD), transmission electron
spectroscopy (TEM) and electrochemical measurements. The results reveal that the metal nanoparticles of Pt–
Pd/C catalysts are uniformly dispersed on the carbon support and exist as alloys with face centered cubic (FCC)
structures. The effects of both preparation process and Pt/Pd ratios on the structure and catalytic activity of the
Pt–Pd/C catalysts were investigated. With the increase of Pd content, the catalytic activity for ORR is deterio-
rated due to the increased metal particle size of Pt–Pd/C catalysts, while improving the methanol tolerance.
Among the Pt–Pd/C catalysts with different Pt/Pd ratios, the Pt₃Pd/C catalyst, which have the highest Pt/Pd
ratios, exhibits higher specific mass activities toward oxygen reduction reaction (ORR) than that of the com-
mercial Pt/C catalyst.

Keywords: oxygen reduction reaction, methanol tolerance, catalyst, fuel cell

DOI: 10.1134/S1023193515040126

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