▎ 摘　　要

NOVELTY - Performing piezoelectric water catalytic cracking involves dispersing water and zinc-copper nano-foam to form a suspension, adjusting the atmosphere of the system to a protective atmosphere, and applying mechanical energy to the system for water decomposition reaction under the condition of avoiding light. The zinc-copper nano-foam is composed of two-dimensional zinc, cobalt and N-co-doped graphene nanosheets stacked and assembled. USE - Method of zinc-copper-nickel nano-foam catalyst piezoelectric water catalytic cracking used in field of hydrogen production. Uses include but are not limited to factory production, vehicle travel, construction site operation and entertainment field activity. ADVANTAGE - The method can efficiently and environment-friendly catalytic water decomposition to prepare hydrogen.