▎ 摘　　要

NOVELTY - Preparing colloidal hydrogen production catalyst involves mixing cobalt dichloride solution, a ruthenium trichloride solution, a graphene solution and polyvinylpyrrolidone in a certain ratio under a nitrogen atmosphere and a low temperature condition. The solution is mixed, and the above mixed solution is further reduced with a certain concentration of sodium borohydride solution to obtain ruthenium cobalt oxide/reduced graphene oxide nano colloid material. USE - Method for preparing colloidal hydrogen production catalyst. ADVANTAGE - The method enables to prepare colloidal hydrogen production catalyst with improved hydrogen production capability and good stability.