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Machine translation
1. (WO1979000709) A METHOD OF STABILISING ELECTRODES COATED WITH MIXED OXIDE ELECTROCATALYSTS DURING USE IN ELECTROCHEMICAL CELLS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000709    International Application No.:    PCT/GB1979/000040
Publication Date: 20.09.1979 International Filing Date: 05.03.1979
IPC:
C25B 11/00 (2006.01)
Applicants:
Inventors:
Priority Data:
8663/78 04.03.1978 GB
Title (EN) A METHOD OF STABILISING ELECTRODES COATED WITH MIXED OXIDE ELECTROCATALYSTS DURING USE IN ELECTROCHEMICAL CELLS
(FR) METHODE DE STABILISATION D"ELECTRODES ENROBEES DE MELANGES D"OXYDES ELECTROCATALYSEURS DANS DES CELLULES ELECTROCHIMIQUES
Abstract: front page image
(EN)An electrochemical cell with an electrode having deposited thereon an electrocatalyst which is a mixed oxide of nickel-molydenum, nickel-tungsten, cobalt-molydenum or cobalt-tungsten and containing an aqueous alkaline electrolyte comprising an aqueous solution of a molybdenum, vanadium or tungsten compound. The electrodes are preferably prepared by alternately coating an electrode core with a compound of nickel or cobalt, and with a compound of molydenum or tungsten, said compounds being capable of thermal decomposition to the corresponding oxides, heating the coated core at an elevated temperature to form a layer of the mixed oxides on the core and finally curing the core with the mixed oxide layer thereon in a reducing atmosphere at a temperature between 350 C and 600 C. The cells are particularly suitable for use in the electrolysis of water or brine.
(FR)Cellule electrochimique avec une electrode sur laquelle on depose un electrocatalyseur qui est un melange d"oxyde de nickel-molybdene, nickel-tungstene, cobalt-molybdene ou cobalt-tungstene et contenant un electrolyte aqueux alcalin comprenant une solution aqueuse d"un compose de molybdene, vanadium ou tungstene. Les electrodes sont preparees, de preference, par recouvrement alterne du noyau de l"electrode avec un compose de nickel ou cobalt, puis avec un compose de molybdene ou tungstene, lesdits composes pouvant etre decomposes par la chaleur pour donner les oxydes correspondants, par chauffage du noyau enrobe a une temperature elevee pour former une couche de melange d"oxydes sur le noyau et finalement en placant le noyau dans une atmosphere reductrice a une temperature entre 350 C et 600 C pour realiser la prise du melange d"oxydes sur le noyau. Les cellules conviennent particulierement a l"electrolyse de l"eau ou de la saumure.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)