▎ 摘　　要

Here, reduced graphene oxide (rGO) was modified with iron and platinum nanoparticles by solvothermal method. The structural order and textural properties of the graphene based materials were studied by BET, TEM, XRD, TGA and XPS techniques. Hydrogen storage properties of GO, platinum loaded reduced graphene oxide (Pt-rGO), iron loaded reduced graphene oxide (Fe-rGO), and iron platinum loaded reduced graphene oxide (FePt-rGO) have been investigated in the pressure range of 0.05 to atmospheric pressure and at 77 and 87K. This gives hydrogen adsorption capacities of about 1.2, 2.1, 1.9, and 2.7wt% at 77K for GO, Pt-rGO, Fe-rGO, and FePt-rGO, respectively. The isosteric heat of adsorption (Q(st)) was investigated as a function of hydrogen uptake at 77 and 87K over the pressure range of 0.05 to atmospheric pressure. The isosteric heat of adsorption for FePt-rGO (9.2kJ/mol) was found to be higher than the isosteric heat of adsorption for GO (6.1kJ/mol) indicating a favorable interaction between hydrogen and surface of the reduced graphene oxide.