Abstract
The metal mixed oxides (MMO) such as RuO2, IrO2, TiO2 as excellent catalysts on the surface of dimensionally stable anodes (DSAs) preparing by aqueous solutions of platinum-group metals (PGMs) chlorides for the copper electrolysis has been discussed. One of the possible surface modifications of the new titanium DSAs could be the alloying of the PGMs at low temperatures. This possibility has been described using the synthesis of catalysts for the reaction of crotonaldehyde hydrogenation and their characterization. The discussed results are related to the increase of current density by using alternative types of anodes and charge transfer between specific PGMs as well as chemical reaction engineering, and surface acidity in the catalysts.
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