Title:
CATALYST FOR SOLID POLYMERIC FUEL CELL, AND METHOD FOR PRODUCING CATALYST FOR SOLID POLYMERIC FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2024/057948
Kind Code:
A1
Abstract:
The present invention relates to a catalyst for a solid polymeric fuel cell in which catalyst particles that contain Pt as an essential catalyst metal are carried on a carbon powder carrier. The present invention comprises a barrier layer comprising a hydrophobic porous polymer that coats a carbon powder carrier and/or at least one catalyst particle. Due to the presence of the porous barrier layer, the catalyst according to the present invention is such that, in a pore distribution curve derived from a log differential pore volume distribution, a peak in log differential pore volume (dV/d(logD)) is present in a pore diameter region of 50-200 nm inclusive. The barrier layer is configured from any porous polymer from among polyvinyl acetate, polylactic acid, polymethyl methacrylate, polypropylene, polyvinyl chloride, polyethylene, polyacrylonitrile, polyvinyl alcohol, polyvinylidene fluoride, polyethylenimine, and polystyrene.
Inventors:
AKIYAMA TOMOHIRO (JP)
Application Number:
PCT/JP2023/031769
Publication Date:
March 21, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND (JP)
International Classes:
H01M4/86; B01J31/28; B01J33/00; B01J35/60; B01J37/04; B01J37/08; H01M4/88; H01M4/90; H01M4/92; H01M8/10
Domestic Patent References:
| WO2020209346A1 | 2020-10-15 |
Foreign References:
| JP2005108551A | 2005-04-21 | |||
| JP2008135369A | 2008-06-12 | |||
| JP2004327057A | 2004-11-18 | |||
| JPH1125992A | 1999-01-29 | |||
| JP2018113182A | 2018-07-19 |
Attorney, Agent or Firm:
ORIGINATE IP (JP)
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