Title:
IONIC LIQUID-IMPREGNATED INORGANIC MATERIAL-COATED CATALYST PARTICLES, MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELLS, AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2023/112958
Kind Code:
A1
Abstract:
Ionic liquid-impregnated catalyst particles 1 according to the present invention each comprise a conductive carrier 2 and metal particles 3 that are supported by the conductive carrier 2; at least a portion of each metal particle 3 is coated with an inorganic material 4; at least a part of the surface of the metal particle 3, the surface being coated with the inorganic material 4, is in contact with an ionic liquid 5; and at least one of the requirements A and B described below is satisfied. Requirement A: The conductive carrier is formed of carbon, and the peak intensity ratio (G/D ratio) of the G-band to the D-band as determined by Raman spectroscopy is from 1.6 to 2.2 at the laser wavelength of 532 nm. Requirement B: The conductive carrier has a pore volume of a mesopore region of 0.18 cm3/g or more as determined by a BJH method, and a peak top pore diameter of the pore distribution curve within the range of 2.6 nm to 2.8 nm as determined by a BJH method.
Inventors:
KURIHARA HITOSHI (JP)
Application Number:
PCT/JP2022/046026
Publication Date:
June 22, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
B01J23/42; H01M4/86; B01J35/08; B01J35/10; C01B32/00; H01M4/90; H01M4/92; H01M8/10; H01M8/1004
Foreign References:
| JP2020500096A | 2020-01-09 | |||
| JP2008065988A | 2008-03-21 | |||
| JP2020068148A | 2020-04-30 | |||
| JP2012043612A | 2012-03-01 | |||
| JP2006216503A | 2006-08-17 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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