离子液体-多金属氧酸盐纳米材料的低热固相合成及电催化性能

项目名称： 离子液体-多金属氧酸盐纳米材料的低热固相合成及电催化性能

项目编号： No.21301147

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 王瑞英

作者单位： 新疆大学

项目金额： 30万元

中文摘要： 多酸具有独特的结构和性质，使其在电化学、光学、催化等领域应用广泛。多酸还是优秀的无机构筑块，与有机体结合, 能形成具有新型功能特性的有机-无机杂化多金属氧酸盐。离子液体具有导电率高、蒸汽压小、稳定性好等特点，使其在电化学领域的应用不断拓展。由于常规多酸修饰电极的灵敏度、长期稳定性及重复性较差，因此，开发新型有机-无机杂化材料成为改善多酸修饰电极电催化性能的一个重要解决办法。 本项目将离子液体和多酸的优良电化学性能以及纳米材料的特性三者有机地结合起来，采用低热固相化学反应这种简便、高效的纳米材料合成方法制备新型有机-无机杂化离子液体-多金属氧酸盐纳米材料。将其构筑成廉价、易更新的化学修饰碳糊电极，研究其对亚硝酸盐、溴酸盐、过氧化氢等环境及食品中污染物的电催化性能。系统探讨合成材料的结构、形貌、尺寸与电催化性能之间的关系，找寻有益规律，为新型绿色电化学传感器材料的研究、开发和应用开拓新思路。

中文关键词： 离子液体；多金属氧酸盐；纳米材料；低热固相反应；电催化性能

英文摘要： Polyoxometalates(POMs) have attracted considerable interests for their application prospects in many fields of electrochemistry, optics and catalysis owing to their novel structures and properties. POM anions have been also found to be versatile inorganic building blocks. The combination of the inorganic building blocks with appropriate organic molecules has been shown to lead to a variety of organic-inorganic hybrid materials that have the new functional properties. Ionic liquids(ILs) presented potential application prospects in electrochemistry owing to their high conductivities, low vapour pressures and good stabilities. Because the sensitivities, long term stabilities and repeatabilities of routine polyoxometalate modified electrodes are not good. As a result, the explorations of novel organic-inorganic hybrid materials are expected to be one of the important solutions. In this project, we combine the versatile electrochemical properties of ILs and POMs as well as the advantages of nanomaterials to facile synthesize novel organic-inorganic IL-POM nanomaterials by low-heating solid-state chemical reaction. As-prepared IL-POM nanomaterials were fabricated bulk-modified carbon paste electrodes (CPEs), which have many advantages of inexpensive and easy to renew the surface, to investigate their electrocatalytic

英文关键词： Ionic liquids；Polyoxometalates；Nanomaterials；Low-heating solid-state reaction；Electrocatalytic properties