Title:
IONOMER-COATED CATALYST AND METHOD FOR MANUFACTURING THE SAME, AND CATALYST INK
Document Type and Number:
Japanese Patent JP2018152333
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: an ionomer-coated catalyst which enables manufacturing a catalyst ink having a low viscosity and a high solid content concentration; a method for manufacturing the ionomer-coated catalyst; and a catalyst ink arranged by use of such ionomer-coated catalyst.SOLUTION: An ionomer-coated catalyst comprises an electrode catalyst, and an ionomer (A) coating a surface of the electrode catalyst; the ionomer (A) is 30% or more in residual percentage R (%). The ionomer-coated catalyst is obtained by: preparing a fluid dispersion containing the electrode catalyst, the ionomer (A), water and as required, alcohol and having a water content of 0.8 or more; drying the fluid dispersion; and performing a thermal treatment on resultant powder at a temperature of 130°C or higher and 200°C or lower. Re-dispersing the ionomer-coated catalyst in a dispersant, a catalyst ink can be obtained.SELECTED DRAWING: Figure 8
Inventors:
KUDO KENJI
GOTO NAOMI
YOSHIMUNE KO
HASEGAWA NAOKI
KAMIYA ATSUSHI
TAKEHIRA YUICHI
OKA NORITOSHI
GOTO NAOMI
YOSHIMUNE KO
HASEGAWA NAOKI
KAMIYA ATSUSHI
TAKEHIRA YUICHI
OKA NORITOSHI
Application Number:
JP2018039856A
Publication Date:
September 27, 2018
Filing Date:
March 06, 2018
Export Citation:
Assignee:
TOYOTA CENTRAL RES & DEV
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
H01M4/86; H01M4/88
Domestic Patent References:
| JP2010218721A | 2010-09-30 | |||
| JPH07254419A | 1995-10-03 | |||
| JP2014216157A | 2014-11-17 | |||
| JP2003036856A | 2003-02-07 | |||
| JP2013037940A | 2013-02-21 | |||
| JP2016058396A | 2016-04-21 | |||
| JP2017134999A | 2017-08-03 |
Foreign References:
| WO2016067878A1 | 2016-05-06 | |||
| WO2007126153A1 | 2007-11-08 |
Attorney, Agent or Firm:
Fumio Hatakeyama