Electrode for use in reacoes eletroquimicas,Process for formation of a coating adhering material ceramico eletrocatalitico on the surface of a substrate and use of such electrode inert metallic

摘要

The present invention provides an electrode having a coating made of electrocatalytic ceramic materials on substantially incompatible metal substrates, by resorting to the use of an anchoring pre-coating or interlayer, applied over the metal substrate advantageously by galvanic electrodeposition, said pre-coating generally consisting of an inert metallic matrix containing particles of a ceramic material which preferably is compatible or even isomorphous with respect to the ceramic material constituting the superficial or external electrocatalytic coating. Adhesion to the metal substrate and electrical conductivity through the coating result thereby greatly improved. Further, the electrolysis of sodium chloride in cells provided with the electrode of the present invention is more efficient and less problematic.