Fluorination of Metal-Organic Frameworks

金属有机框架的氟化

• 批准号: 2906170
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2906170
• 关键词: Fluorination; Metal; Organic; Frameworks

Background/ objective: Metal-organic frameworks (MOFs) are an exciting, and the largest, family of crystalline nanoporous material that is receiving global research attention for numerous uses including commercial and pilot plant applications for the storage of toxic gases, carbon capture, dehumidification - water harvesting and the control of fruit ripening. Due to the vast number of MOFs, a recent trend is to modify available MOFs in a designed manner to adapt their properties and enhance their application performance. One suitable modification route is to incorporate fluoride anions into the inorganic component of the MOF framework. Inclusion of fluoride anions in this framework component can produce MOFs with exceptional selectivity, recyclability and moisture stability for CO2 separations, or change the onset and degree of framework breathing transitions.Approach: This project aims to replace specific amounts of inorganic anions for fluoride anions in the subset of MOFs that contain inorganic anions as part of the zero-, one- or two-dimensional inorganic component of the MOF using a variety of materials' synthesis and post-synthesis approaches. The MOFs resulting from successful development of such methods will be fully characterized to determine the amount and nature of the fluoride incorporation that will involve powder and single crystal X-ray diffraction, solid state NMR spectroscopy, scanning electron microscopy, XPS and gas adsorption measurements. The resulting MOFs will also be tested for a range of properties including thermoresponsive, gas adsorption/ separation and electrical behaviours. The studentship will be based in Manchester but may involve trips to synchrotron sources for data collection.Novel engineering and/or physical sciences content: This research project will result in new routes to produce designed frameworks for MOFs and to understand the distribution of specific atoms/ groups within their framework. The functional MOFs produced will have modified and controllable properties particularly regarding their thermoresponsive and gas adsorption/ separation properties.Research areas: chemistry; energy; physical sciences; directed assembly; advanced materials

背景/目标：金属有机框架（MOF）是一个令人兴奋的、最大的晶体纳米多孔材料家族，其多种用途受到全球研究的关注，包括用于储存有毒气体、碳捕获、除湿的商业和中试工厂应用- 集水和控制果实成熟。由于 MOF 数量巨大，最近的趋势是以设计的方式修改可用的 MOF，以适应其特性并增强其应用性能。一种合适的改性途径是将氟阴离子掺入 MOF 骨架的无机组分中。在该框架组分中包含氟化物阴离子可以产生用于 CO2 分离的具有优异选择性、可回收性和水分稳定性的 MOF，或者改变框架呼吸转变的开始和程度。 方法：该项目旨在用特定量的无机阴离子替代中的氟化物阴离子。 MOF 的子集，包含无机阴离子作为 MOF 的零维、一维或二维无机成分的一部分，使用各种材料的合成和后合成方法。成功开发此类方法所产生的 MOF 将得到全面表征，以确定氟化物掺入的量和性质，这将涉及粉末和单晶 X 射线衍射、固态核磁共振波谱、扫描电子显微镜、XPS 和气体吸附测量。由此产生的 MOF 还将接受一系列性能测试，包括热响应、气体吸附/分离和电行为。学生奖学金将设在曼彻斯特，但可能涉及前往同步加速器源进行数据收集。新颖的工程和/或物理科学内容：该研究项目将带来新的途径来生产 MOF 的设计框架并了解特定原子的分布/他们的框架内的团体。所生产的功能性 MOF 将具有改性和可控的特性，特别是在它们的热响应和气体吸附/分离特性方面。活力;物理科学；定向组装；先进材料