| abstract |
The invention discloses a preparation method of a precious metal supported electrocatalyst, which comprises the following steps: a: mixing a carrier and a metal precursor, and grinding to obtain a precursor, wherein the carrier is selected from carbon black, activated carbon, graphite At least one of carbon, carbon nanotubes, carbon nanofibers, and graphene, and the metal precursor includes at least one of platinum salts, ruthenium salts, iridium salts or gold salts; b: using the method obtained in step a The precursor is sintered to obtain an electrocatalyst. The preparation method of the present invention may further comprise step c, wherein the catalyst obtained in the step b is subjected to a dealloying treatment. The metal composition of the electrocatalyst prepared by the invention can be a single atom, a cluster or a particle, and the component is a single component or an alloy. The preparation method is simple, efficient, universal, economical, and can be scaled up in batches. This type of catalyst can be Applied in the field of electrocatalysis, especially in the oxygen reduction reaction in acidic or alkaline electrolytes. |