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化工学报  2015 

WC/MMT纳米复合材料制备及其对PNP的电催化活性

DOI: 10.11949/j.issn.0438-1157.20150779, PP. 3776-3781

Keywords: 碳化钨,蒙脱石,纳米复合材料,制备,电催化性能

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Abstract:

以剥离后的蒙脱石(MMT)为载体,将浸渍法与原位还原技术相结合制备了碳化钨/蒙脱石(WC/MMT)纳米复合材料。采用X射线衍射、扫描电子显微镜和透射电子显微镜等手段对样品进行了表征。结果表明,剥离后蒙脱石的片层厚度为10~15nm,层间距增大,边缘发生卷曲;复合材料由碳化钨(WC)、碳化二钨(W2C)和蒙脱石组成,碳化钨颗粒均匀地分布于蒙脱石外表面。采用循环伏安法测试了样品对对硝基苯酚(PNP)的电化学还原性能,结果表明,WC/MMT纳米复合材料对对硝基苯酚具有良好的电催化活性,且具有较好的稳定性。蒙脱石是碳化钨基复合电催化材料良好的载体。

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