Catalyst for electrolyzed water as well as preparation method and application thereof

The invention provides a catalyst for electrolyzed water and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a nickel source, urea and thioacetamide with a solvent, adding foamed nickel, and carrying out primary hydrothermal reaction to obtain a nickel disulfide precursor growing on the foamed nickel in situ; and (2) mixing the nickel disulfide precursor growing on the foamed nickel in situ with a solution containing a molybdenum source and a nickel source, and carrying out a secondary hydrothermal reaction to obtain the catalyst for electrolyzed water. According to the invention, commercial foamed nickel is used as a raw material and is common and low in price, a process is simple, and large-scale production is easy to achieve; the surface of the prepared functionalized foamed nickel is doped with metal sulfide and molybdenum; and a sheet structure is uniform in thickness, and the oxygen reduction performance of the catalyst is excellent. 本发明提供了一