An object of the present invention is to provide a method of producing an electrode catalyst having excellent catalytic activity and excellent durability in an electrode catalyst layer of MEA for a PEFC. The method of producing an electrode catalyst having...

An object of the present invention is to provide a method of producing an electrode catalyst having excellent catalytic activity and excellent durability in an electrode catalyst layer of MEA for a PEFC. The present invention provides a method of producing...

Provide is a reduction catalyst, which comprises conductive carbon and a palladium-gold alloy supported on the carbon, wherein the alloying degree of said alloy is 50 to 100%. This palladium-supported catalyst has an excellent reduction ability, and exhibi...

A carbon black is provided which is useful as an electrocatalyst carrier. The carbon black has a DBP oil absorption of 170 to 300 cm/100 g, a specific surface area as measured by a BET method of 250 to 400 m/g, a primary particle diameter value of 10 to 17...

An electrode catalyst for fuel cells which comprises a conductive carbon, platinum supported on the conductive carbon in an amount of from 20% by mass to 70% by mass based on the mass of the catalyst, and oxygen bonded chemically to the conductive carbon a...