Citation: Xu-Yan ZHAO, Yu-En WU. Synthesis of High-Performance and Low-Loading PtCo/C Proton Exchange Membrane Fuel Cell Catalysts[J]. Chinese Journal of Inorganic Chemistry, ;2021, 37(8): 1457-1464. doi: 10.11862/CJIC.2021.172 shu

Synthesis of High-Performance and Low-Loading PtCo/C Proton Exchange Membrane Fuel Cell Catalysts

Xu-Yan ZHAO ,
Yu-En WU ^,

School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China

Corresponding author: Yu-En WU, yuenwu@ustc.edu.cn
Received Date: 1 March 2021
Revised Date: 25 June 2021

Figures(7)

A series of PtCo/C catalysts etched with different amounts of nitric acid were synthesized by stepwise synthesis. Tested by fuel cell test device, PtCo/C catalysts showed good performance at the condition of low loading. Under 50 kPa back pressure, the current density at 0.9 V reached 44 mA·cm^-2 and the current density at 0.8 V exceeded 300 mA·cm^-2. Under 200 kPa back pressure, the highest power density exceeded 1 300 mW·cm^-2. The morphology and structure of PtCo/C catalysts were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). XRD patterns show that Pt mainly exists in the form of Pt₃Co and Pt nanoparticles. The fuel cell test data show that among the series of catalysts, PtCo/C catalysts treated with aqueous solution prepared with 2 mL nitric acid (mass ratio of 65%) has the best fuel cell performance.
- PtCo/C catalysts,
- proton exchange membrane fuel cell,
- oxygen reduction reaction,
- low Pt-loading
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