A graphitic ordered mesoporous carbon (G-OMC) has been synthesized for the first time using mesoporous nickel oxide as a template and catalyst and dopamine as a carbon source. The probable formation mechanism for the preparation of G-OMC is also proposed. Characterization by X-ray diffraction, Raman spectroscopy and high resolution transmission electron microscopy indicate that the asprepared mesoporous carbon has a high degree of graphitization. The electrochemical performance of G-OMC is visibly superior to typical CMK-3D in alkalic media, involving fast kinetic transfer, anti-corrosion, a capacitance of 68 mF cm 22 at 0.1 A g 21 and a light increase of the 6000th-cycle capacitance compared to the initial capacitance. In organic electrolyte, a wider potential window of 2.5 V is presented. The fast charge transfer, quick response and anti-corrosion properties promise that G-OMC will have a great prospect as a supercapacitor for energy storage applications.
Graphitic mesoporous carbon (GMC) has been prepared with non-toxic and economical sucrose as the carbon precursor and mesoporous iron oxide as a catalyst at a relatively low carbonization temperature. XRD patterns suggest that GMC is formed by a carbide intermediate. The data of nitrogen sorption exhibit that the GMC possesses a mesoporous structure. Pt nanoparticles are uniformly loaded on the graphitic mesoporous carbon by a facile and effective microwave assisted ethylene glycol process. All the results show that the graphitic mesoporous carbon-supported Pt nanoparticles have superior electrocatalytic properties compared to Vulcan XC-72 and CMK-3 catalyst supports, suggesting this novel and general method will have a bright future in fuel cell applications.
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