▎ 摘　　要

NOVELTY - Preparing three-dimensional pore structure iron oxide/reduced graphene oxide (rGO)/foam nickel composite capacitor desalination electrode involves placing nickel foam in hydrochloric acid solution for ultrasonic cleaning, and drying in a vacuum oven to obtain blank nickel foam. The obtained blank nickel foam is placed in a graphene oxide solution to react, and reduced graphene oxide (rGO) is generated in situ on the foam nickel current collector to obtain rGO/foam nickel composite electrode. The rGO/nickel foam composite electrode is placed in the ferrous salt solution, heated for reaction, and the surface of rGO grows in situ in clusters of iron oxide, washed with water, and freeze-dried to obtain iron oxide/reduced graphene oxide/nickel foam composite electrode. The composite electrode is placed under a laser and etched with different laser powers to obtain a product. USE - Method for preparing three-dimensional pore structure iron oxide/reduced graphene oxide (rGO)/foam nickel composite capacitor desalination electrode used as the cathode and anode of the CDI (capacitance de-ionized) device (claimed). ADVANTAGE - The method improves conductive performance of the electrode material and specific capacitance of electrode, reduces oxidation graphene (GO), and increases the specific surface area of the composite material, in simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for using three-dimensional pore structure iron oxide/reduced graphene oxide (rGO)/foam nickel composite capacitor desalination electrode.