Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1985-01-07
1986-04-29
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
502101, 502325, 502339, C25B 1100, H01M 488
Patent
active
045855404
ABSTRACT:
A porous high surface area composite electroconductive catalytic material, particularly as electrocatalyst for electrolysis electrodes, comprises a porous pre-formed matrix which is a catalytic mixed crystal material of at least one platinum group metal oxide and at least one valve metal oxide throughout which a subsequently-added additional catalyst preferably consisting of at least one platinum group metal and/or oxide is dispersed by chemideposition in an oxidizing or reducing atmosphere preferably followed by an annealing post heat treatment. The porous matrix may be ruthenium-titanium oxide and the additional catalyst advantageously comprises at least two oxides of ruthenium, rhodium, palladium and iridium, other combinations being possible.
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Beer Henri B.
Bishara Jeries I.
Hinden Jean M.
Kovatch William A.
Van den Keybus Frans A. M.
Eltech Systems Corporation
Freer John J.
Niebling John F.
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