毛细管中纳米金层级组装结构的构筑及其用于SERS监测催化反应研究

项目名称： 毛细管中纳米金层级组装结构的构筑及其用于SERS监测催化反应研究

项目编号： No.21505138

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 唐祥虎

作者单位： 中国科学院合肥物质科学研究院

项目金额： 21万元

中文摘要： 利用具有较高时空解析度的表面增强拉曼光谱（SERS）技术去原位探索催化反应动力学是SERS拓展应用领域的一个重要发展方向。其中，构筑高灵敏、高稳定、高重现性SERS基底来原位、实时在线监测液相中的催化反应并进行动力学研究仍是一项具有挑战性的课题。本项目以此为目标牵引，拟在毛细管中构筑纳米金层级组装结构，将贵金属纳米粒子的合成、层级组装和SERS分析、催化监测及动力学研究结合起来，研究层级组装结构的可控性、稳定性及其SERS活性和催化效应；以装载有纳米金层级组装结构毛细管为关键部件，设计构筑微流通路模块，利用毛细管微环境内腔液膜支载体的限域作用，形成微型催化反应器，并拟以两种环境污染物中常见的非巯基硝基苯类化合物（X-ArNO2，其中X=COOH,OH）作为研究对象，利用该组装结构原位、实时在线监测其催化反应的进行并研究反应动力学，以期为发展SERS技术用于化学反应监测的新方法提供技术参考。

中文关键词： 纳米金层级组装结构；表面增强拉曼光谱；毛细管；微流通路；催化反应监测

英文摘要： Investigating the kinetics of catalytic reactions with surface enhanced Raman spectroscopy (SERS) technique is an important development direction in the field of application of SERS. As to the SERS development, design and construction of all kinds of SERS substrates for the different requirements are the most important research title. In general, the construction of high sensitivity, high stability and high reproducibility SERS substrates for in situ, real-time online monitoring of the liquid phase catalytic reaction and dynamics research is still a challenging task. Hence, in this project, hierarchical assembly of Au nanostructures SERS substrates based on capillary platform for application on catalytic monitoring will be constructed. For this purpose, the construction of nano Au assembly hierarchy structure in the capillary, the synthesis of noble metal nanoparticles, SERS analysis and catalytic kinetics of monitoring are will be studied for understanding the controllability, stability, SERS activity and catalytic property. Based on the assembly structure, the micro circulation will be designed and constructed to form a tiny catalytic reactor, and proposed two kinds of non-thiolated nitrobenzene compounds (X-ArNO2, where X = COOH, OH), which are the common environmental pollutants, will be chosen as the research objective. The assembly structure will be used in situ, real-time online monitoring of the catalytic reaction process and the reaction kinetics will also be studied. The expected outcomes of the project will provide new ideas and technological possibility for the development and application of SERS technique in the field of chemical reaction monitoring.

英文关键词： Hierarchical assembly of Au nanostructures;Surface enhanced Raman spectroscopy;Capillary;Microcirculation;Catalytic monitoring