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碳化钨作为一种潜在的催化剂可广泛应用于电化学催化和有机合成反应.本文通过一种简单可行的“软模板”法制备了介孔碳化钨/炭纳米复合材料,主要包括“油包水”微乳液形成、模板诱导自组装、高温碳化还原过程.采用X-射线衍射、透射电镜和比表面积和孔径分布等方法对材料进行了表征与分析。结果表明,该复合材料具有蠕虫状的介孔结构、高的比表面积、碳化钨粒子(约40 nm)均匀的分布在炭载体上.介孔碳化钨/炭纳米复合材料可用于燃料电池、化学传感器和电催化有机合成反应.
As a potential catalyst, tungsten carbide can be widely used in electrochemical catalysis and organic synthesis reactions.In this paper, mesoporous tungsten carbide / carbon nanocomposites were prepared by a simple and feasible “soft template” method, including " Water-in-water microemulsion formation, template-induced self-assembly and high temperature carbonization and reduction. The materials were characterized and analyzed by X-ray diffraction, transmission electron microscopy and specific surface area and pore size distribution. The results show that the composites have a worm-like mesoporous structure with high specific surface area and uniform distribution of tungsten carbide particles (about 40 nm) on the carbon support.The mesoporous tungsten carbide / carbon nanocomposites can be used in fuel cell, chemical Sensors and Electrocatalytic Organic Synthesis.