Electrodeposition of Tungsten, Molybdenum and Double Carbides of Tungsten (Molybdenum) and Nickel (Cobalt) from Low-Temperature Halide-Oxide Melts

Abstract

We investigated the processes of electrochemical deposition of metallic tungsten and molybdenum, carbides of molybdenum and tungsten by methods of cyclic voltammetry, electrolyses from halide-oxide melts at temperature 550 {degree sign}C. Conditions of joint electroreduction of fluoride complexes of tungsten and molybdenum, carbon dioxide and ions of nickel and cobalt in halide-oxide melts are found at temperature 550 {degree sign}C. Optimum conditions of obtaining of metallic tungsten and molybdenum, carbides of tungsten (molybdenum), double carbides tungsten with nickel (cobalt) from halide-oxide melts are determined.