▎ 摘　　要

NOVELTY - Preparation of three-dimensional porous graphene oxide precipitation-based electrode involves preparing graphite oxide, vacuum drying graphite oxide at 60-80 degrees C, heating the dried graphite oxide at 80-120 degrees C for 8-24 hours, and heating resultant product under vacuum at 180-250 degrees C for 5-60 minutes. USE - Preparation of three-dimensional porous graphene oxide precipitation-based electrode used in photolysis of water and metal in field of air battery and energy conversion device. ADVANTAGE - The method enables economical preparation of three-dimensional porous graphene oxide precipitation-based electrode having excellent catalytic property and stability for long period of time, with high productivity by a simple process using easily available raw materials.