Title:
燃料電池用の電極触媒材料
Document Type and Number:
Japanese Patent JP7340419
Kind Code:
B2
Abstract:
To provide an electrode catalyst material for fuel cells, which does not use platinum as a catalyst component while having oxygen reduction reaction activity and catalytic activity that are equivalent to those in an electrode catalyst material with platinum fine particles supported on surfaces of carbon particles.SOLUTION: An electrode catalyst material for fuel cells includes a metal oxide and a conductive structure supported on the metal oxide. The metal oxide is a linked aggregate in which flaky nanocrystal pieces are linked to each other, the flaky nanocrystal pieces each having main surfaces where a specific crystal plane is exposed and an end surface. The plurality of the nanocrystal pieces has a gap arranged while opening to an outside of the linked aggregate, between the main surfaces. The conductive structure has a planar site where a plurality of conductive linear substances comes into contact with each other and is distributed in a planar direction along the main surface of each nanocrystal piece. Conductivity in the planar direction of the planar site is greater than conductivity in a direction orthogonal to the planar direction, and the main surface of each nanocrystal piece and the planar site are in electrical contact with each other.SELECTED DRAWING: Figure 1
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Inventors:
Hidekazu Tsuzuki
Satoshi Yamazaki
Satoshi Yamazaki
Application Number:
JP2019201189A
Publication Date:
September 07, 2023
Filing Date:
November 06, 2019
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
H01M4/86; B01J23/72; H01M4/90; H01M4/96
Domestic Patent References:
| JP2016066612A | ||||
| JP2013058429A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Junichi Maekawa
Ueshima class
Shuichi Sumiyoshi
Junichi Maekawa
Ueshima class
Shuichi Sumiyoshi