RuPd alloy three-dimensional porous nano electrocatalyst and preparation method and application thereof

The invention discloses a RuPd alloy three-dimensional porous nano electrocatalyst as well as a preparation method and application thereof. According to the method, palladium inorganic salt and ruthenium cyanide salt are used as precursors, sodium borohydride is used as a reducing agent, and the RuPd alloy three-dimensional porous nano electrocatalyst can be obtained at room temperature. Compared with a traditional palladium-based catalyst preparation method, the method has the advantages that the operation process is simple, synthesis is easy, byproducts are easy to remove, and deionized centrifugal washing is adopted. The RuPd alloy three-dimensional porous nano electrocatalyst prepared by the method disclosed by the invention is single in morphology, relatively high in purity, easy in high-flux preparation, relatively large in specific surface area, capable of exposing rich reaction active sites, high in catalytic reaction selectivity aiming at formic acid oxidation reaction, stable in structure in a catal