The invention discloses a multilayer
nickel-
cobalt-based OER catalyst and a preparation method thereof. The multilayer
nickel-
cobalt-based OER catalyst is characterized in that the catalyst is of a three-layer structure composed of a supporting layer, a middle layer and a
skin layer, the supporting layer is foamed
nickel, the middle layer is nickel-
cobalt layered double
hydroxide NiCo-LDH growing on the foamed nickel, the
skin layer is ZIF-67, and the ZIF-67 is embedded in the nickel-cobalt layered double
hydroxide. The prepared multi-layer nickel-cobalt-based OER catalyst can be applied to the field of electro-
catalysis, an organic
metal framework material is introduced, meanwhile, use of a binder (such as a
Nafion solution) is avoided, controllable synthesis of an MOFs material is achieved, accordingly, excellent OER performance and stability are achieved, a ZIF-67 layer grows through an
electroplating method instead of other high-energy-consumption
modes such as hydrothermal growth, and the performance of the catalyst is greatly improved. The preparation efficiency is improved, the loss of raw materials is reduced, and higher industrialization potential is brought.