Title:
【発明の名称】白金または銀をベースとするバイメタル担持触媒と、その製造方法と、その電気化学セルでの使用
Document Type and Number:
Japanese Patent JP3101261
Kind Code:
B2
Abstract:
A stable bi-metallic catalyst comprises an electronic conducting support and a metallic coating comprising a metal M1 chosen from Pt and Ag and a second metal M2 different from M1 and chosen from Pt, Ag, Au, Rt, Ir, R and Os. An Independent claim is also included for the preparation of the catalyst comprising (a) impregnating the conducting support by a solution of the metal salt M1 chosen from Pt or Ag and by a solution of the metal salt M2 chosen from Pt or Ag, Au, Ru, Ir, R, Os; (b) evaporating slowly under stirring and under inert gas bubbling; (c) drying of the powder at atmospheric pressure at 60-80 degrees C, then under reduced pressure at 90-110 degrees C; and (d) heating of the resulting powder under hydrogen at 300-600 degrees C. The heat rate was 0.2-1.5 degrees C/min and the soak time was 20 hours or preferably 2-16 hours.
Inventors:
Francoise andrefat
Sylvain Communication
Sylvain Communication
Application Number:
JP5616399A
Publication Date:
October 23, 2000
Filing Date:
March 03, 1999
Export Citation:
Assignee:
ATOFINA
International Classes:
C25B11/08; B01J23/42; B01J23/50; B01J35/00; B01J37/02; C25B11/04; C25B11/06; C25B13/04; H01M4/92; (IPC1-7): C25B11/08; C25B13/04
Domestic Patent References:
| JP665773A | ||||
| JP5696458A | ||||
| JP60211774A | ||||
| JP5869786A | ||||
| JP57152479A |
Attorney, Agent or Firm:
Takashi Koshiba