Title:
酸素還元能を有する電極触媒
Document Type and Number:
Japanese Patent JP5792567
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electrode catalyst having an oxygen-reducing property to offer excellent catalytic activity and durability.SOLUTION: The electrode catalyst which is used with a platinum-based electrode catalyst in a solid polymer fuel cell, for example, is composed of ruthenium oxide nanosheets, and the ruthenium oxide nanosheets have a scaly shape. When the dimensions of the ruthenium oxide nanosheet are represented by the average of the maximum length and the length intersecting the maximum length at the midpoint at a right angle, the dimensions of 65% or more of all the nanosheets are in the range of 50 to 350 nm, and the mode diameter is in the range of 100 to 250 nm. The ruthenium oxide nanosheets and an electrode catalyst containing a platinum catalyst supported by a carbon black support, preferably form a composite electrode catalyst.
Inventors:
Wataru Sugimoto
Christoph Shovan
Christoph Shovan
Application Number:
JP2011196798A
Publication Date:
October 14, 2015
Filing Date:
September 09, 2011
Export Citation:
Assignee:
Shinshu University
International Classes:
H01M4/90; B01J23/46; H01M4/86; H01M4/92; H01M8/10
Domestic Patent References:
| JP2004315347A | ||||
| JP2011134477A | ||||
| JP2010188549A |
Attorney, Agent or Firm:
Shunichi Yoshimura