Synthesis and nanoscale electrochemistry of two-dimensional covalent organic frameworks (2D-COFs) of metal containing porphyrins

含金属卟啉的二维共价有机骨架（2D-COF）的合成和纳米电化学

• 批准号: 2088638
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2088638
• 关键词: Synthesis; nanoscale; electrochemistry; two; dimensional

This project will combine nanoscale surface analysis used the MOB group, with electrochemical techniques used in the KBH group. This collaboration provides an opportunity to develop two techniques new to both groups: electrochemical STM (EC-STM) and electrochemical quartz crystal microbalance (EC-QCM). EC-STM will allow combined electrochemical and molecular resolution structural analysis of porphyrin 2D-COFs. QCM allows surface mass changes of < 1 ng cm-2 to be measured and is being implemented by MOB to study porphyrin 2D-COF growth as part of his EPSRC 1st grant. Combining QCM with electrochemical measurements would provide a technique that can probe both the redox behaviour of porphyrin 2D-COFs but also the binding of different analytes to the central metal atoms of the porphyrin components. The combined use of EC-STM and EC-QCM will allow us to investigate the electrochemical behaviour of these new 2D materials from the molecular level right up to extended thin films on high surface area porous graphene substrate, materials with immense potential as sensors or electro-catalysts.

该项目将结合联合收割机纳米表面分析使用的MOB组，与电化学技术使用的KBH组。这项合作提供了一个机会，开发两个新的技术，这两个群体：电化学STM（EC-STM）和电化学石英晶体微天平（EC-QCM）。EC-STM将允许卟啉2D-COFs的电化学和分子分辨率结构分析相结合。QCM允许测量< 1 ng cm-2的表面质量变化，并正在由MOB实施，以研究卟啉2D-COF生长，作为他的EPSRC第一批资助的一部分。将QCM与电化学测量相结合将提供一种既可以探测卟啉2D-COF的氧化还原行为，又可以探测不同分析物与卟啉组分的中心金属原子的结合的技术。EC-STM和EC-QCM的结合使用将使我们能够研究这些新的2D材料的电化学行为，从分子水平一直到高表面积多孔石墨烯基底上的扩展薄膜，这些材料具有作为传感器或电催化剂的巨大潜力。