Phosphorus-doped cobalt molybdate HER/SOR bifunctional catalyst, preparation method and application

The invention discloses a phosphorus-doped cobalt molybdate HER/SOR bifunctional catalyst as well as a preparation method and application thereof. A structural unit of the bifunctional catalyst consists of a foamed nickel (NF) matrix and P-CoMoO4 active components distributed on the NF matrix; the preparation method comprises the following steps: pretreatment of foamed nickel, preparation of Co (OH) F/NF, preparation of CoMoO4/NF, and preparation of P-CoMoO4/NF. The cobalt molybdate is synthesized by utilizing a hydrothermal method, and phosphorus is doped on the cobalt molybdate through low-temperature pyrolysis, so that effective adsorption of a hydrogen-containing and oxygen-containing intermediate is facilitated, and the HER/SOR performance of the material is greatly improved; the P-CoMoO4 catalyst is low in cost, has chlorine poisoning resistance, promotes HER and SOR at the same time in a seawater hydrogen production system, effectively reduces the energy consumption of an anode, and improves the energy