Functionalising metal surfaces with N-heterocyclic carbenes for applications in corrosion inhibition and heterogenous catalysis

用 N-杂环卡宾对金属表面进行功能化，用于腐蚀抑制和多相催化应用

• 批准号: 2589807
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2589807
• 关键词: Functionalising; metal; surfaces; heterocyclic; carbenes

Functionalisation of metal surfaces with NHCs has shown considerable promise in a range of applications including corrosion resistance, the development of novel biosensors and in catalysis. In each case, it is important to develop a detailed understanding of the interaction of NHCs with metal surfaces which can be achieved by surface characterisation of NHC adsorption on well-defined single crystal surfaces with the complementary techniques of scanning tunnelling microscopy, vibrational spectroscopy, X-ray photoelectron spectroscopy and temperature programmed desorption1, 2 . Thiol functionalised Au nanoparticles are used widely in a variety of applications3. The extension to nanoparticles of other metals is limited by the tendency of these more reactive metals to corrode in ambient environments. In this project the stability of NHC modified nanoparticles of other metals, e.g. Ag, will be investigated. In addition, Chiral NHCs have been used in enantioselective catalysis4. The work will be extended to synthesise and characterise metal nanoparticles functionalised by the adsorption of chiral NHCs and to test these systems as enantioselective heterogeneous catalysts.

在一系列应用中，具有NHC的金属表面的功能化在包括耐腐蚀性，新型生物传感器和催化中的一系列应用中表现出了很大的希望。在每种情况下，重要的是要详细了解NHC与金属表面的相互作用，这可以通过NHC吸附在定义明确的单晶表面上的表面表征与扫描隧道显微镜的互补技术，振动光谱，X射线光学光谱谱图和温度编程的互补技术来实现。硫醇官能化的Au纳米颗粒在多种应用中广泛使用3。其他金属的纳米颗粒扩展受到这些更具反应性金属在环境环境中腐蚀的趋势的限制。在这个项目中，NHC修饰的其他金属的纳米颗粒的稳定性，例如AG，将进行调查。另外，手性NHC已用于对映选择性催化4。这项工作将扩展到合成和表征通过手性NHC的吸附功能功能化的金属纳米颗粒，并将这些系统作为对映选择性异质催化剂测试。