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Updated: Jul 1, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
Electrocatalytic activity of PtAuPd/C nano multi-principal element alloy catalyst towards oxygen reduction reaction
Hui Li1, Zhiwei Zhang1, Lianke Zhang1
1New Energy Materials Research Center, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China. hyqin@hdu.edu.cn.
Abstract:
Developing highly stable, low-platinum electrocatalysts is crucial for advancing fuel cell technology. In this study, a PtAuPd/C nano multi-principal element alloy catalyst was synthesized by a carbothermal shock method. The average particle size of the PtAuPd/C alloy nanoparticles is around 2.2 nm and the PtAuPd/C exhibits superior catalytic activity and stability towards the oxygen reduction reaction (ORR) compared to the binary alloy catalysts (PtAu/C and PtPd/C). The PtAuPd/C displays a half-wave potential (E1/2) of 0.837 V and a Tafel slope of 53.1 mV dec-1. It demonstrates only a minimal E1/2 loss of 3.5 mV after 40 000 cycles and a mass activity retention rate of 78.2%. When employed as a cathode catalyst within a direct borohydride fuel cell, the PtAuPd/C catalyst exhibits a maximum power density of 438.3 mW cm-2. This improved ORR activity is attributed to synergistic electronic effects and modified surface strain within the PtAuPd nanoalloy.
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