Catalyst layer, membrane electrode assembly for solid polymer fuel cell, and solid polymer fuel cell
AssigneeAGC Inc.
InventorToshihiro Tanuma
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Abstract
A catalyst layer including: a catalyst-supported carbon including a catalyst including platinum supported on a carbon carrier; and an ionomer, in which the catalyst-supported carbon has a mesopore having a pore diameter of from 2 nm to less than 10 nm in a pore distribution obtained by a nitrogen adsorption method, at least a part of the ionomer exists in the mesopore having a pore diameter of from 2 nm to less than 10 nm, a content of the ionomer with respect to 100 parts by mass of the carbon carrier is 100 parts by mass or more, and an occupancy rate of the ionomer in a total volume of the mesopore having a pore diameter of from 2 nm to less than 10 nm is 50% by volume or less.
Claims11
A catalyst layer, comprising:
- a catalyst-supported carbon comprising a catalyst comprising platinum supported on a carbon carrier;
- and
- an ionomer, wherein:
- the catalyst-supported carbon comprises mesopores having a pore diameter of from 2 nm to less than 10 nm in a pore distribution obtained by a nitrogen adsorption method,
- at least a part of the ionomer exists in mesopores having a pore diameter of from 2 nm to less than 10 nm,
- a content of the ionomer with respect to 100 parts by mass of the carbon carrier is 100 parts by mass or more, and
- an occupancy rate of the ionomer in a total volume of the mesopores having a pore diameter of from 2 nm to less than 10 nm is 50% by volume or less.
Dependencies are inferred from the claim text.