▎ 摘　　要

The graphene/Fe2O3 nanocomposites were prepared by the sol-gel method and then dried naturally in air or supercritical CO2. X-ray diffraction, scanning electron microscopy and specific surface area analysis were used to characterize the structure of the nanocomposites. The nanocomposites dried with supercritical CO2 have larger specific area and porous structure. The catalytic properties of the graphene/Fe2O3 nanocomposites for ammonium perchlorate were investigated by differential scanning calorimetry. When the nanocomposites were added, not only the thermal decomposition temperature of ammonium perchlorate was decreased, but also the exothermic heat was increased. Comparing the two drying methods, the graphene/Fe2O3 nanocomposites dried with supercritical CO2 showed better catalytic effects.