The α-Cr2O3 nanorods were synthesized by the hydrothermal route at 180 ℃ through the reaction of chromium(III) acetylacetonate as the source of chrome and the cetyltrimethylammonium bromide(CTAB) as surfactant.The chromium(III) acetylacetonate as the intermediate was characterized by TG-DSC and IR.The X-ray diffraction results showed that the product was α-Cr2O3 with hexagonal crystal structure.The SEM images showed that the diameter of the nanorods was 70-80 nm and length was 0.5-1.2 μm.The DTA data showed...