▎ 摘　　要

NOVELTY - Preparing monoatom noble metal/graphene catalyst comprises electrochemically intercalating the graphite, then ultrasonically stripping for loading noble metal salt on graphene, and reducing by microwave radiation. USE - The catalyst is useful for hydrogenating cinnamic aldehyde. ADVANTAGE - The catalyst: is highly stable supported on graphene; can highly dispersed at the atomic level; and has high activity, high selectivity and has high stability in the selective hydrogenation of cinnamic aldehyde to cinnamyl alcohol. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for monoatom noble metal/graphene catalyst prepared by the above method.