Cu及合金纳米团簇的制备及其电催化和荧光性能研究

项目名称： Cu及合金纳米团簇的制备及其电催化和荧光性能研究

项目编号： No.21275136

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 陈卫

作者单位： 中国科学院长春应用化学研究所

项目金额： 80万元

中文摘要： 本项目将以化学还原法为主要手段合成一系列尺寸小于2纳米，尺度均一且组份可调的Cu及合金纳米团簇。在结构准确表征的基础上，研究Cu及合金纳米团簇的双层电容量子化充电特征，为不同尺寸和组成的Cu及合金纳米团簇的电子传输特性提供系统的研究结果。用多种电化学技术研究Cu及合金纳米团簇的电催化活性与其尺寸、组份关系以及金属纳米团簇的电催化机理，为燃料电池非Pt及低Pt纳米电催化剂的开发和应用提供新的思路和方向。利用纳米团簇的电化学活性构建电化学传感器，实现对葡萄糖、过氧化氢等的超灵敏、特异性检测。研究不同尺度及不同组份纳米团簇对其荧光性能的影响，实现其在环境、生命等领域荧光分析中的应用。该项目将对Cu及合金纳米团簇的制备-结构-性能-应用之间的相关性进行深入研究。研究结果将会对尺度小于2 nm的Cu及合金纳米团簇形成全面、系统性的认识，从而为纳米团簇的性能研究和实际应用提供可靠的实验数据和理论依据。

中文关键词： 纳米团簇；电催化；电分析；荧光；碳基复合材料

英文摘要： In this project, by changing experimental conditions and using seperation techniques for nanoclusters, Cu and alloy nanoclusters with different core sizes(<2 nm) and compositions will be synthesized with chemical reduction method. Based on the size and structural characterizations, the double layer quantized charging properties of Cu and alloy nanoclusters will be investigated,providing the systematic result of electron transport in copper and alloy nanoclusters with different core sizes and compositions.The size- and composition-dependent electrocatalytic properties of the synthesized nanoclusters and the catalysis mechanism will be studied by various electrochemical techniques, providing new idea and direction of the development and application of low-Pt and non-Pt nano electrocatalysts for fuel cells. Taking advantage of the electrochemical activities of the clusters, electrochemical sensors will be fabricated for the detection of gluocose and hydrogen peroxide with ultrahigh sensitivity and specifity. The effects of core size and compositon of the alloy nanoclusters on their fluorescence properties will be also studied to realize the application of fluorescence analysis in the research fields of environmental and life sciences. This project highlights the intensive investigation of the dependence of synthesi

英文关键词： Nanocluster；electrocatalysis；electrochemical analysis；fluorescence；carbon-based hybrid materials