Fuel cell electrode catalyst, method for selecting the same, and fuel cell including the same
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United States of America Patent
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Aug 1, 2023
Grant Date -
Sep 15, 2022
app pub date -
Mar 8, 2022
filing date -
Mar 11, 2021
priority date (Note) -
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Abstract
A fuel cell electrode catalyst includes catalyst metal particles and electrically conductive support particles supporting the catalyst metal particles. In the fuel cell electrode catalyst, a proportion of a surface area occupied by the catalyst metal particles with particle sizes of 4.5 nm or less to a surface area of the catalyst metal particles calculated from a transmission electron microscope image is 5% or less.
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