▎ 摘　　要

NOVELTY - Preparing three-dimensional porous graphene material using the bimetallic nanoparticles and the monolayer graphene comprises (i) mixing prepared metal precursor with well-dispersed graphene oxide and reducing agent and (ii) placing the mixed solution into the reactor to perform a hydrothermal reaction, washing and freeze-drying. USE - The material is useful in producing formic acid from electrochemical reduction of carbon dioxide. ADVANTAGE - The material has mechanical properties and is economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the three-dimensional porous graphene material using the bimetallic nanoparticles and the monolayer graphene is obtained by the above method.