(19)
(11) EP 0 103 014 A1

(12)

(43) Date of publication:
21.03.1984 Bulletin 1984/12

(21) Application number: 83901295.0

(22) Date of filing: 10.03.1983
(51) International Patent Classification (IPC): 
C25B 11/ 04( . )
(86) International application number:
PCT/US1983/000321
(87) International publication number:
WO 1983/003265 (29.09.1983 Gazette 1983/23)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 11.03.1982 US 19820357244
29.04.1982 US 19820372906

(71) Applicant: ENGELHARD CORPORATION
Iselin New Jersey 08830 (US)

(72) Inventors:
  • LANGLEY, Robert C.
    Millington, NJ 07946 (US)
  • MYERS, Herbert
    South Orange, NJ 07079 (US)

   


(54) PROMOTION OF Pt-Ir CATALYTIC ELECTRODES WITH LEAD, TANTALUM, RUTHENIUM AND OXYGEN