Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst
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United States of America Patent
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Jun 8, 2021
Grant Date -
Nov 21, 2019
app pub date -
Aug 1, 2019
filing date -
Apr 25, 2013
priority date (Note) -
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Abstract
Provided is a catalyst having excellent gas transportability. Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more.
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