Optimal pore shape in a low‐Pt PEM fuel cell cathode catalyst layer
نویسندگان
چکیده
A model for performance of an axially symmetric pore with the curved generatrix is developed. Oxygen transport along axis and in radial direction through a thin ionomer film separating volume from Pt/C surface taken into account. functional formulated, Euler–Lagrange equation solved numerically optimal shape. This shape close to cubic paraboloid converging toward membrane. Polarization curves show superior over cylindrical same active (side) area. The results suggest loading low-Pt electrodes.
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ژورنال
عنوان ژورنال: Electrochemical science advances
سال: 2023
ISSN: ['2698-5977']
DOI: https://doi.org/10.1002/elsa.202300021