石墨烯功能纳米材料及其在食品安全传感器中的应用研究

项目名称： 石墨烯功能纳米材料及其在食品安全传感器中的应用研究

项目编号： No.61201091

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 甘甜

作者单位： 信阳师范学院

项目金额： 27万元

中文摘要： 本课题拟利用电化学/化学手段进行调控，开展组成和形貌可控的介孔金属氧化物功能化石墨烯纳米复合材料制备技术的研究。探索不同组成和形貌的石墨烯-介孔金属氧化物功能纳米材料与其电化学传感特性之间的内在规律。重点研究纳米增强效应、纳米界面加速电子转移效应、纳米富集效应以及石墨烯功能纳米材料的电化学传感理论。结合石墨烯复合材料的双重增敏作用，研究食品添加剂在不同组成和形貌纳米石墨烯-介孔金属氧化物功能材料上的电化学行为、敏感机理和信号转换机制，建立高灵敏度、高选择性、适合快速现场检测的新方法和新传感器件，用于食品样品的实际分析。本课题将在高催化活性的石墨烯功能纳米材料的制备和研究方面开创新技术和新方法，所获得的纳米传感理论、敏感机理和制备技术有利于构筑更广泛的纳米食品安全电化学传感器。

中文关键词： 石墨烯；纳米复合物；食品安全；纳米传感；电化学检测

英文摘要： Through this project, the technology for preparing mesoporous metal oxide (M2On) functionalized graphene nanao-hybrids with controllable composition and morphology will be studied by using the regulation of electrochemical/chemcial methods. The inherent laws of grephene-mesoporous M2On functional nanomaterials with different composition and morphology and their electrochemical sensing specialities will be explored. The nano-enhancement effect, electronic transfer effect sped up by nano-interface, nano-enrichment effect and the electrochemical sensing theory of graphene-based funtional nanomaterials will be investigated. The electrochemical behaviors, sensing mechanisms and signal switching mechanisms of food additives will be researched on grephene-M2On functional materials with different composition and morphology utilizing the dual-sensitizing effect of graphene hybrids. And the new methods and new sensors with high sensitivity, good selectivity and fast in-situ detection serviceability will be developed for the practical analysis of food samples. This project will creat new techniques and new methods for preparing and studying graphene-based functional nanomaterials with high catalytic activility, and the obtained nano-sensing theory, sensitizing mechanism and preparation technology are advantageous to the fa

英文关键词： Graphene；Nanocomposite；Food safety；Nano sensing；Electrochemical detection