CAREER: Fundamental Investigation of Supported Materials: ZIFs and Nanoclusters

技术概述：这项由固态和材料化学计划支持的工作是对负载材料的基础研究，重点研究氧化物负载的金属/金属氧化物纳米团簇和负载的沸石咪唑盐框架。这些材料在气体捕获和储存方面的应用前景很好，并且具有潜在的新颖、未开发的反应性质。利用程序升温反应光谱（TPRS）和x射线光电子能谱（XPS）探测能量相关分子与这些支撑材料的相互作用。这些技术将阐明一些关于结合位点、相对结合强度和反应性的关键基本问题。他们还将对支撑膜的化学和热稳定性进行关键的研究。这项工作有望建立材料成分与气体结合和反应性之间的联系，从而预测支撑材料的结构和化学变化，从而提高气体结合的反应性和选择性。此外，这项工作的大部分将在圣地亚哥大学进行，这是一个主要的本科机构，将材料化学纳入本科课程。最后，部分资金将用于在圣地亚哥地区建立一个女性STEM教师网络（“femSTEM”网络），以促进学术界STEM女性的保留和提升，并指导从博士后和研究生职位过渡到学术界的女性。非技术总结：目前在能源生产和天然气储存领域存在许多挑战。例如，碳氢化合物燃料燃烧产生的二氧化碳继续导致全球变暖。一个潜在的解决方案是使用高表面积材料过滤和储存二氧化碳，如多孔金属有机框架。由固态和材料化学计划支持的拟议工作是对此类支持材料用于能源相关气体储存和反应性的基础研究。感兴趣的材料包括沸石咪唑盐框架和支撑金属和金属氧化物纳米团簇。目标是利用表面科学技术建立材料结构/组成与气体吸附之间的关系，以及与能源相关的反应性。这项工作将大量涉及本科生研究人员，也将导致材料化学整合到圣地亚哥大学的本科课程中。这项工作的第二个重要方面涉及在更广泛的圣地亚哥地区建立女性STEM（科学、技术、工程和数学）教师网络（“femSTEM”网络）。该小组的目的是促进STEM学术界女性教师的转型、发展和提升。

TECHNICAL SUMMARY:The proposed work, supported by the Solid State and Materials Chemistry program, is a fundamental investigation of supported materials which focuses on oxide-supported metal/metal oxide nanoclusters, and supported zeolitic imidazolate frameworks. Such materials are promising candidates for applications in gas capture and storage, and hold potentially novel, unexplored reactive properties. The interaction of energy-relevant molecules with these supported materials will be probed using temperature programmed reaction spectroscopy (TPRS) and X-ray photoelectron spectroscopy (XPS). These techniques will shed light on some key fundamental questions regarding binding sites, relative binding strengths, and reactivity. They will also enable critical investigation of the chemical and thermal stability of the supported films. This work is expected to establish connections between material composition and gas binding and reactivity, enabling the prediction of structural and chemical changes in supported materials which will lead to enhanced reactivity and selectivity in gas binding. Furthermore, the bulk of this work will take place at the University of San Diego, a primarily undergraduate institution, affording an integration of materials chemistry into the undergraduate curriculum. Finally, a portion of the funds will be used to develop a network of female STEM faculty in the San Diego region (the "femSTEM" network) which fosters the retention and promotion of STEM women in academia, and mentors women transitioning to academia from postdoctoral and graduate positions.NON-TECHNICAL SUMMARY:A number of challenges exist currently in the areas of energy production and gas storage. For example, carbon dioxide produced from the combustion of hydrocarbon fuels continues to contribute to global warming. One potential mitigating solution to this problem is the filtration and storage of carbon dioxide using high surface area materials, such as porous metal-organic frameworks. The proposed work, supported by the Solid State and Materials Chemistry program, is a fundamental investigation of such supported materials for energy-relevant gas storage and reactivity. Materials of interest include zeolitic imidazolate frameworks and supported metal and metal oxide nanoclusters. The goal is to establish relationships between material structure/composition and gas adsorption, as well as energy-relevant reactivity using surface science techniques. This work will heavily involve undergraduate researchers, and will also lead to the integration of materials chemistry into the undergraduate curriculum at the University of San Diego. A second important aspect of this work involves the development a network of female STEM (science, technology, engineering, and math) faculty in the broader San Diego region ("femSTEM" network). The purpose of this group will be to foster the transition, development, and promotion of women faculty in the STEM fields of academia.