Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Patent
1981-08-17
1984-03-06
Edmundson, F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
204290R, 204290F, 4271265, 429 42, C25B 1116, C25B 1108
Patent
active
044353138
ABSTRACT:
An electrode with an outer coating for effecting an electrolytic process is provided with a protective intermediate coating consisting of a conducting insoluble polymer network formed in situ on a titanium base and containing a small amount of finely dispersed platinum group metal catalyst.
A method of manufacturing the electrode comprises applying to the titanium base several layers of a solution containing a polymer precursor and a platinum metal compound which are thermally converted to the protective polymer coating, on which the outer coating is formed, more particularly by electrodepositing manganese dioxide or lead dioxide.
The polymeric intermediate coating serves to protect the titanium base from oxidation, and to more particularly provide stable electrode performance with economical use of precious metal.
REFERENCES:
patent: 4118294 (1978-10-01), Pellegri
Kokhanov et al., Translation of Elektro Khimiya, vol. 9, No. 1, pp. 30-33, 1/73.
Gauger Jurgen F.
Hinden Jean M.
Katz Michael
Diamond Shamrock Corporation
Edmundson F.
Favre Donavon L.
Hazzard John P.
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