Affiliation:
1. International Research Center of Renewable Energy (IRCRE) State Key Laboratory of Multiphase Flow in Power Engineering (MFPE) Xi'an Jiaotong University Xi'an 710049 P. R. China
2. Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education & International Center for Dielectric Research School of Electronic and Information Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
Abstract
AbstractExploring oxygen reduction reaction (ORR) catalysts with superior electrochemical performance and long‐term stability is crucial to the development of proton exchange membrane fuel cells (PEMFCs). In this work, graphited carbon with high specific surface area was obtained under relatively low temperature using Ni catalyst, then ordered nanoparticles (NPs) PtNi catalysts attaching to graphited carbon were synthesized via polyol reduction and thermal treatment. Benefiting from graphitized carbon support and appropriate order degree, PtNi/GC‐700 NPs catalyst exhibits excellent electrocatalytic ORR performance with specific and mass activities as high as 2.8‐fold and 3.7‐fold of the commercial Pt/C catalyst, respectively. Besides, the as‐prepared PtNi/GC‐700 catalyst exhibits superior stability with negligible degradation after 10000 potential cycles, due to its ordered chemical structure. The work described herein highlights the potential of structurally ordered electrocatalysts for efficient and durable fuel cell cathodic catalysts.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Subject
General Chemistry,Catalysis,Organic Chemistry
Cited by
3 articles.
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