High performance platinum single atom electrocatalyst for oxygen reduction 
reaction

Liu, Jing; Jiao, Menggai; Lu, Lanlu; Barkholtz, Heather M.; Li, Yuping; Wang, Ying; Jiang, Luhua; Wu, Zhijian; Liu, Di-jia; Zhuang, Lin; Ma, Chao; Zeng, Jie; Zhang, Bingsen; Su, Dang Sheng; Song, Ping; Xing, Wei; Xu, Weilin; Wang, Ying; Jiang, Zheng; Sun, Gongquan

doi:10.1038/ncomms15938

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High performance platinum single atom electrocatalyst for oxygen reduction reaction

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Su, Dang Sheng
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Liu, J., Jiao, M., Lu, L., Barkholtz, H. M., Li, Y., Wang, Y., et al. (2017). High performance platinum single atom electrocatalyst for oxygen reduction reaction. Nature Communications, 8: 15938. doi:10.1038/ncomms15938.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-C7D1-1

Abstract

For the large-scale sustainable implementation of polymer electrolyte membrane fuel cells in vehicles, high-performance electrocatalysts with low platinum consumption are desirable for use as cathode material during the oxygen reduction reaction in fuel cells. Here we report a carbon black-supported cost-effective, efficient and durable platinum single-atom electrocatalyst with carbon monoxide/methanol tolerance for the cathodic oxygen reduction reaction. The acidic single-cell with such a catalyst as cathode delivers high performance, with power density up to 680 mW cm⁻² at 80 °C with a low platinum loading of 0.09 mgPt cm⁻², corresponding to a platinum utilization of 0.13 gPt kW⁻¹ in the fuel cell. Good fuel cell durability is also observed. Theoretical calculations reveal that the main effective sites on such platinum single-atom electrocatalysts are single-pyridinic-nitrogen-atom-anchored single-platinum-atom centres, which are tolerant to carbon monoxide/methanol, but highly active for the oxygen reduction reaction.