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采用氧化石墨为前驱体,甲醛和间苯二酚为碳源,钨酸钠作为碱性钨源及反应的催化剂,首先通过溶胶-凝胶反应合成了有机湿凝胶,后经冷冻干燥和高温焙烧/原位碳化制备了碳化钨/石墨烯气凝胶材料。对样品进行了X-射线粉末衍射、傅里叶红外光谱、透射电镜、差热-热重及比表面积和孔径分析,考察了样品的微观结构、热稳定性、表面官能团和孔隙结构等性质。以对硝基苯酚为底物,探讨了复合材料的电催化性能。
Using graphite oxide as precursor, formaldehyde and resorcin as carbon source, sodium tungstate as basic tungsten source and reaction catalyst, the organic wet gel was synthesized by sol-gel reaction and then freeze-dried and high temperature Tungsten carbide / graphene airgel materials were prepared by roasting / in-situ carbonization. The samples were characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, differential thermal-thermogravimetry, and specific surface area and pore size analysis. The microstructure, thermal stability, surface functional groups and pore structure of the samples were investigated. Using p-nitrophenol as a substrate, the electrocatalytic properties of the composites were investigated.