磷掺杂对碳载铂催化剂氧还原催化性能的影响

doi:10.11896/cldb.21040096

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Abstract In order to explore the synthesis of new type of low platinum catalyst for proton exchange membrane fuel cells with high catalytic activity and stability, a phosphorus-doped modified carbon-supported platinum catalyst (P_x-Pt/C) was successfully prepared by an improved impregnation reduction method. The electrochemical performance test proves that the catalytic oxygen reduction reaction (ORR) performance of Pt/C can be improved by phosphorus doping. The mass activity (MA) of P_1.5-Pt/C is 1.6 times higher than that of JM20Pt/C. After 10 000 cycles accelerated durability test, the electrochemical surface area (ECSA) of P_1.5-Pt/C increases by 2.92%, with MA decreasing by 43.87%, while the ECSA of JM20Pt/C decreases by 33.7%, with MA decreasing by 53.33%, respectively. It is shown that phosphating can improve the ORR catalytic activity and stability of Pt/C catalysts.

Key words： phosphorus doping oxygen reduction reaction proton exchange membrane fuel cell platinum-based catalyst stability

Published: 10 November 2022 Online: 2022-11-03

CLC number:

TM911.46

Fund:National Natural Science Foundation of China (11774017).

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	LIU Jinwei
	CHANG Liyuan
	WANG Ruzhi

Cite this article:

LIU Jinwei,CHANG Liyuan,WANG Ruzhi. Effect of Phosphorus Doping on the Catalytic Performance of Carbon Supported Platinum Catalysts for Oxygen Reduction[J]. Materials Reports, 2022, 36(21): 21040096-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21040096 OR http://www.mater-rep.com/EN/Y2022/V36/I21/21040096

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