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- W2098784012 abstract "An electrocatalytic method has been developed for depolarization of the hydrogen evolution reaction (h. e. r.) on graphite, iron, steel, nickel and both plain- and palladium alloyed-titanium substrate surfaces. It is useful in industrially important electrolytic pro cesses, such as chlorine (membrane and diaphragm) and chlorate cells, water and sea-water electrolysis, alkali amalgam decomposers and electro-organic syntheses. The combination of two d-metals from the two branches of Balandin's volcano curve for the h.e.r. has created a remarkable electrocatalytic effect, most particularly for molybdenum and cobalt which have been added in situ as their anionic or complex species during the electrolytic process (molybdate and tris-Ethylenediamine cobalt (III) chloride). The alloy activity appears shifted to values representative of precious metals, the effect being above 400 m V over the entire current density range important for industrial applications. In other words, the alloy created at the cathode substrate surface is extremely active, even more so than precious metals, providing current densities more than two orders of magnitude higher at the same potential and dissolving with vigorous hydrogen evolution instantaneously after the cathodic protection ceases. The synergetic electrocatalytic effects and the improvements in polari zation are illustrated by linear potential sweep voltammograms and steady-state Tafel lines. The duration (the life-time) and reactivation of the combined d-metal catalytic activity are given too. Some theoretical consideration concerning synergism in transition metal elec trocatalysis and the state of catalytically active coatings have also been presented. Engine ering aspects and applications were considered too." @default.
- W2098784012 created "2016-06-24" @default.
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- W2098784012 date "1983-11-01" @default.
- W2098784012 modified "2023-10-18" @default.
- W2098784012 title "SYNERGETIC ELECTROCATALYTIC EFFECTS OF d-METALS ON THE HYDROGEN EVOLUTION REACTION IN INDUSTRIALLY IMPORTANT ELECTROCHEMICAL PROCESSES*)" @default.
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