化工学报2015，Vol.66Issue(9)：3776-3781,6.DOI:10.11949/j.issn.0438-1157.20150779
WC/MMT 纳米复合材料制备及其对 PNP 的电催化活性
Preparation of WC/MMT nanocomposite and its electrocatalytic activity for p-nitrophenol
摘要
Abstract
Tungsten carbide and montmorillonite (MMT) nanocomposite was prepared through combining an impregnation approach with a reduction-carbonization method using exfoliated MMT as a support. The samples were characterized by X-ray diffraction, scanning electron microscope and transmission electron microscope. The results showed that the structure of exfoliated MMT was lamellar. The thickness of exfoliated MMT layer was between 10 nm and 15 nm. The edge of exfoliated MMT layer rolled and the interplane distance of exfoliated MMT were enlarged. The crystal phase of the sample was composed of monotungsten carbide (WC), bitungsten carbide (W2C) and MMT. The particles of tungsten carbide were distributed on the surface of exfoliated MMT. The electrochemical reduction activity of the nanocomposite for p-nitrophenol (PNP) was tested by cyclic voltammetry (CV) in acidic solution. It was found that WC/MMT nanocomposite was electrocatalytic active to PNP and its electrocatalytic activity was stable. This implied that the exfoliated MMT was one of the excellent composite carriers to improve the electrocatalytic property of WC, which can be used in other catalysts.关键词
碳化钨/蒙脱石/纳米复合材料/制备/电催化性能Key words
tungsten carbide/montmorillonite/nanocomposite/preparation/electrocatalytic activity分类
化学化工引用本文复制引用
李国华,杨威,佟明兴,郑翔..WC/MMT 纳米复合材料制备及其对 PNP 的电催化活性[J].化工学报,2015,66(9):3776-3781,6.基金项目
国家自然科学基金项目(21173193,21301154) （21173193,21301154）
宁波市自然科学基金项目(2014A610116).supported by the National Natural Science Foundation of China (21173193, 21301154) and the Natural Science Foundation of Ningbo City (2014A610116). （2014A610116）
