Electrode and preparation thereof

Details Electrode and preparation thereof Electrode and preparation thereof

1998-11-09

2000-09-26

Bell, Bruce F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C25B 1100

Patent

active

061238163

ABSTRACT:
Preparation of an electrode comprising a substrate of a valve metal or of an alloy thereof having similar properties thereto and a coating thereon comprising at least an outer layer of an electrocatalytically-active material which comprises an oxide of at least ruthenium and an oxide of at least one non-noble metal by a one-step coating process which comprises the vapor phase deposition of a mixture of at least ruthenium and/or oxide thereof and at least one non-noble metal or oxide thereof onto the substrate. The outer layer is of substantially uniform thickness, the contours thereof are at least substantially the same as the contours of the substrate underlying it and the electrode affords an increased surface area for a given mass of catalyst and a more efficient use of catalyst to obtain a given thickness thereof.

REFERENCES:
patent: 4724169 (1988-02-01), Keem et al.
patent: 5324395 (1994-06-01), Paul et al.
patent: 5334293 (1994-08-01), Cairns et al.

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