HYDROGENFRIGIVELSESKATODE

Hydrogen-evolving cathode comprising, on a substrate, a coating made up of Co3O4 and of a compound other than Co3O4 appears like Co2CrO4 to X-rays and which contains the chromium present in the coating in a quantity such that the value of the ratio of the number of chromium atoms in the coating to t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MILLET, JEANRISTOPHE
Format:	Patent
Sprache:	nor
Schlagworte:	ALLOYS APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CABLES CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONDUCTORS DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INSULATORS METALLURGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Hydrogen-evolving cathode comprising, on a substrate, a coating made up of Co3O4 and of a compound other than Co3O4 appears like Co2CrO4 to X-rays and which contains the chromium present in the coating in a quantity such that the value of the ratio of the number of chromium atoms in the coating to the cumulative number of chromium and cobalt atoms present in the coating remains lower than that at which Co3O4 disappears, process for its manufacture, its application in electrolysis.