▎ 摘　　要

NOVELTY - Preparing graphene quantum dot-doped nobel metal nanotube array by using constant current co-deposition comprises (a) placing the titanium sheet in a mixed aqueous solution containing zinc nitrate and ammonium nitrate at room temperature, using galvanostatic deposition to obtain a zinc oxide nanorod array at 70-90 degrees C, (b) placing the zinc oxide nanorod array in a mixed aqueous solution containing precious metals and graphene quantum dots, adjusting the pH to 3-6, using constant current co-deposition to simultaneously load precious metals and graphene quanta onto the zinc oxide nanorod array at room temperature and (c) statically placing the zinc oxide nanorod array loaded with precious metal nanoparticles and graphene quantum dots in a dilute sulfuric acid solution to dissolve and removing the zinc oxide template to obtain self-supporting graphene quantum dots doped with precious nobel nanotube array. USE - The array is useful in the fields of electrocatalysis and proton exchange membrane fuel cells. ADVANTAGE - The array: increase electrochemical active area by 30-90% and has high electrochemical active area. The method: is mild, green and high-efficiency; has simple preparation process, strong operability and is suitable for mass production.