Accelerated stress tests for Pt/C electrocatalysts: An approach to understanding the degradation mechanisms

Kirill Paperzh,Anastasia Alekseenko,Ilya Pankov,Vladimir Guterman

Journal of Electroanalytical Chemistry（2024）

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Abstract

•Comparative study of 8 stress testing protocols was conducted.•Facile methods to identify predominant degradation mechanisms were proposed.•UPL and atmosphere composition have the most pronounced effect on degradation.•Electrode rotation during AST accelerates the Pt/C degradation almost 2 times.•Optimal testing protocols to assess the catalyst durability were proposed.

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Key words

Durability,Oxygen reduction reaction,PT-based electrocatalysts,Catalyst morphology,Accelerated stress test,Catalyst degradation mechanism

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