Metallic nickel/nickel-iron hydroxide catalytic layer-modified copper iodide-bismuth composite electrode and method of preparing the same and method of preparing adiponitrile using metallic nickel/nickel-iron hydroxide catalytic layer-modified copper iodide-bismuth composite electrode

Abstract

A method of preparing a metallic nickel/nickel-iron hydroxide catalytic layer-modified copper iodide-bismuth composite electrode is disclosed. The method comprises steps of: preparing a plating solution containing 0.25 M ammonium chloride, 0.067 M to 0.133 M nickel chloride, 0.067 M to 0.133 M ferrous sulfate, and 0.04 M to 2 M sodium hypophosphite; placing a copper iodide-bismuth composite electrode in the plating solution for electrodepositing metallic nickel/nickel-iron hydroxide catalytic layer onto the copper iodide-bismuth composite electrode to obtain the metallic nickel/nickel-iron hydroxide catalytic layer-modified copper iodide-bismuth composite electrode, CuI—Bi/Ni—NiFe(OH)x(r), wherein r is a molar ratio of nickel chloride to ferrous sulfate. A metallic nickel/nickel-iron hydroxide catalytic layer modified copper iodide-bismuth composite electrode and a method of preparing adiponitrile using the metallic nickel/nickel-iron hydroxide catalytic layer modified copper iodide-bismuth composite electrode are further disclosed.

Dependencies are inferred from the claim text.