▎ 摘　　要

NOVELTY - The method involves dissolving the graphene oxide dispersion with a concentration of 2 to 3 g/L in deionized water to form a first solution. The volume ratio of graphene oxide dispersion to deionized water is 1:0.3\=0.8. The copper chloride dihydrate is added to the first solution, and the second solution is formed by ultrasonicating for 20-60 min according to the addition ratio of 10-100 grams per liter. The freeze-dried product is moved into a tube furnace, and calcined at 600-800degrees for 2-4 hours in an ammonia gas atmosphere. The deionized water, isopropanol, and naphthol solution are added to the calcined product successively. The addition ratio follows 150-200 ml of deionized water, 50-80 ml of isopropanol, 10-15 ml of naphthol solution per gram of product, and ultrasonic for 20-60 min to obtain the copper-capriblue metal nanosheet electrocatalyst. USE - Preparation method for copper-capriblue metal nanosheet electrocatalyst. ADVANTAGE - The synthesis method provides simple process, low energy consumption, mild conditions, good product appearance and the like, and is suitable for large-scale production applications. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of stability test of copper-capriblue metal nanosheet electrocatalyst (Drawing includes non-English language text).