Electrode catalyst, electrode catalyst layer using electrode catalyst, membrane-electrode assembly, and electrochemical device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsNobuhiro Miyata, Haruhiko Shintani
Life of this patent
Estimating the term…
Abstract
An electrode catalyst according to the present disclosure includes a mesoporous material and catalyst metal particles which are supported in at least an inner portion of the mesoporous material and which contain platinum and a metal different from platinum. The mesoporous material has mesopores having a mode radius of greater than or equal to 1 nm and less than or equal to 25 nm and a pore volume of greater than or equal to 1.0 cm3/g and less than or equal to 3.0 cm3/g. The catalyst metal particles which are supported have an L10 structure. The proportion of the L10 structure is greater than 0.25.
Claims10
An electrode catalyst comprising:
- a mesoporous material;
- and
- catalyst metal particles which are supported in at least an inner portion of the mesoporous material and which contain platinum and a metal different from platinum,
- wherein the mesoporous material has mesopores having a mode radius of greater than or equal to 1 nm and less than or equal to 25 nm and a pore volume of greater than or equal to 1.0 cm3/g and less than or equal to 3.0 cm3/g, and
- the catalyst metal particles which are supported have an L10 structure, and a proportion of the L10 structure is greater than 0.25.
Dependencies are inferred from the claim text.