Two-stage electrochemical synthesis of double molybdenum carbides

A new two-stage synthesis of double molybdenum and nickel carbides and high-activity and stable catalytic coatings of nickel-promoter molybdenum carbides in salt melts is developed. The first stage includes the formation of molybdenum-nickel alloys by an electrolytic method and currentless transfer in chloride melts. The second stage consists in the carbonization of the alloys in a chloride-carbonate melt under various synthesis conditions. The stabilities of the nickel-promoter catalytic systems are studied, and their catalytic activities in the back water-gas shift reaction are determined.