▎ 摘　　要

NOVELTY - Preparation of iodine-functionalized graphene material involves mixing ultrasonically-treated graphene-oxide suspension, a reducing agent containing ethanol and an iodine precursor containing elemental iodine, iodine salts or hydroiodic acid, and introducing the reaction mixture into a microwave field of 800 W for 30 minutes at 40-50 degrees C. The iodine-functionalized graphene material has highest iodine doping concentration of 0.41 atomic% and 4.13 wt.%, a specific surface area of 310 m2/g and a very high porosity when the elemental iodine is used as the iodine precursor. The iodine-functionalized graphene material has highest iodine doping concentration of 0.13 atomic% and 1.29 wt.%, a specific surface area of 116 m2/g and a high porosity when an aqueous solution of the iodine salt is used as the iodine precursor. USE - Preparation of iodine-functionalized graphene material used as catalytic material or electrocatalytic material for manufacturing various devices e.g. electrodes for energy applications. ADVANTAGE - The method is effective, safe, fast, and has single step. DETAILED DESCRIPTION - Preparation of iodine-functionalized graphene material involves mixing ultrasonically-treated graphene-oxide suspension, a reducing agent containing ethanol and an iodine precursor containing elemental iodine, iodine salts or hydroiodic acid, and introducing the reaction mixture into a microwave field of 800 W for 30 minutes at 40-50 degrees C. The iodine-functionalized graphene material has highest iodine doping concentration of 0.41 atomic% and 4.13 wt.%, a specific surface area of 310 m2/g and a very high porosity when the elemental iodine is used as the iodine precursor. The iodine-functionalized graphene material has highest iodine doping concentration of 0.13 atomic% and 1.29 wt.%, a specific surface area of 116 m2/g and a high porosity when an aqueous solution of the iodine salt is used as the iodine precursor. The iodine-functionalized graphene material has highest iodine doping concentration of 0.75 atomic% and 7.32 wt.%, a specific surface area of 355 m2/g and a very high porosity when hydroiodic acid solution is used as the iodine precursor.