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VO2/ordered mesoporous carbon (CMK-3) composites were prepared by solid-state reaction process. The microstructures were characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption, field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The experimental results showed that the vanadium oxide in the composites was vanadium dioxide (VO2) with monoclinic structure, which was artificially loaded on the outer surface of CMK-3. VO2/ordered mesoporous carbon composites present a significantly improved capacitive performance (131 F/g) increased by 40.86% compared to that of CMK-3 carbon (93 F/g). Therefore, as-prepared VO2/mesoporous carbon composites suggest promising applications in hybrid capacitors.
The microstructures were characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption, field-emission scanning electron microscopy (FE-SEM) and Transmission electron microscopy (TEM). The experimental results showed that the vanadium oxide in the composites was vanadium dioxide (VO2) with monoclinic structure, which was artificially loaded on the outer surface of CMK-3. VO2 / ordered mesoporous carbon composites present a significantly improved capacitive performance (131 F / g) increased by 40.86% compared to that of CMK-3 carbon (93 F / g). Thus, as- prepared VO2 / mesoporous carbon composites suggest promising applications in hybrid capacitors.