4.6 Article

Kinetic model of platinum dissolution in PEMFCs

Journal

JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 150, Issue 11, Pages A1523-A1527

Publisher

ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1613669

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This paper presents a mathematical model of oxidation and dissolution of supported platinum catalysts in polymer electrolyte membrane fuel cells (PEMFCs). Kinetic expressions for the oxidation and dissolution reactions are developed and compared to available experimental data. The model is used to investigate the influences of electrode potential and particle size on catalyst stability. (C) 2003 The Electrochemical Society.

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