Preparation method of Mo-doped Ru cluster hydrogen evolution catalyst for inhibiting OH radical poisoning effect

The invention relates to the field of electro-catalytic materials, and aims to provide a preparation method of a Mo-doped Ru cluster hydrogen evolution catalyst for inhibiting OH radical poisoning. Comprising the following steps: uniformly mixing a nitrogen source, a carbon source and precursors of metal molybdenum and ruthenium, and carrying out gradient heating continuous heat treatment in an inert atmosphere; and naturally cooling to room temperature to obtain a black powdery catalyst product. The bimetallic atomic-scale hydrogen evolution catalyst provided by the invention has a Mo-doped Ru crystal nanocluster structure, RuMo atomic clusters are uniformly distributed on a two-dimensional carbon substrate, and a large number of catalytic active centers are provided; an excellent HER function is achieved, and the poisoning effect of-OH in the alkaline electrolysis water splitting process can be inhibited; the one-pot gradient pyrolysis method does not need complicated steps of dissolving, mixing, drying, wa