CAREER: SusChEM: Electron Transfer Mechanisms in Metal Organic Framework Thin Films

职业：SusChEM：金属有机框架薄膜中的电子转移机制

• 批准号: 1551964
• 负责人: Amanda Morris
• 金额: $ 60.5万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-15 至 2022-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1551964&HistoricalAwards=false
• 关键词: CAREER; SusChEM; Electron; Transfer; Mechanisms

In this CAREER project funded by the Chemical Structure, Dynamic & Mechanism B Program of the Chemistry Division and the Solid State and Materials Chemistry Program in the Division of Materials Research, Professor Amanda Morris of the Department of Chemistry at Virginia Polytechnic Institute and State University is exploring the optical and electronic properties of metal organic framework thin films arrays. The goal of the project is to learn how to control these properties and aid in the development of artificial photosynthetic assemblies capable of converting solar energy into chemical fuels for long-term storage and use. The project addresses critical, present-day environmental and energy technology challenges at the interface of many scientific disciplines (chemistry, physics, and biology). At the high school level, four laboratory modules are being developed to complement the Virginia Standards of Learning through the full sequence and scope of the high school science program. These modules provide laboratory experiences with real-world applications to a diverse population of students and afford the opportunity for teachers to apply the curriculum to one of today's most active research fields. This component feeds into a new undergraduate course entitled "Energy Sources of the Future," which promotes undergraduate research experiences, emphasizes the cross-disciplinary nature of energy science, and involves literature studies, guest lectures, and laboratory experiments.Metal organic frameworks (MOF) are a class of solid-state inorganic-organic hybrid materials that combine the stability of heterogeneous materials with the synthetic diversity of molecular complexes. The research aims to discover the relationship between the molecular and three-dimensional structure of metal organic frameworks and observed electron transport properties. In this project, a series of systematically varied metal organic framework structures are explored to: (1) Elucidate the mechanism of electrochemical electron transport through MOF thin films; (2) Determine the contributions of electronic and ionic diffusion to apparent ambipolar diffusion coefficients; (3) Uncover the guiding principles to efficient photo-induced charge transport in MOF arrays. These objectives are accomplished through the correlation of structure, as determined by crystallography, to efficiency and mechanism, as measured by electrochemistry and pulsed-laser spectroscopy. As part of the proposal, a hands-on educational program capitalizes on the breadth and appeal of the research area to educate future scientists and teachers at the high school level

在这个由化学系的化学结构、动力学和机理 B 项目以及材料研究部的固态和材料化学项目资助的职业项目中，弗吉尼亚理工学院暨州立大学化学系的 Amanda Morris 教授探索金属有机框架薄膜阵列的光学和电子特性。该项目的目标是学习如何控制这些特性，并帮助开发能够将太阳能转化为化学燃料以供长期储存和使用的人工光合组件。该项目解决了当今许多科学学科（化学、物理和生物学）交叉领域面临的关键环境和能源技术挑战。在高中阶段，正在开发四个实验室模块，以通过高中科学项目的完整顺序和范围来补充弗吉尼亚学习标准。这些模块为不同群体的学生提供了具有实际应用的实验室经验，并为教师提供了将课程应用到当今最活跃的研究领域之一的机会。该部分纳入了名为“未来能源”的新本科课程，该课程促进本科生研究经验，强调能源科学的跨学科性质，并涉及文献研究、客座讲座和实验室实验。金属有机框架（MOF） ）是一类固态无机-有机杂化材料，它将异质材料的稳定性与分子复合物的合成多样性结合起来。该研究旨在发现金属有机骨架的分子和三维结构之间的关系以及观察到的电子传输特性。在该项目中，系统地探索了一系列不同的金属有机骨架结构，以：（1）阐明MOF薄膜电化学电子传输的机制； (2) 确定电子和离子扩散对表观双极扩散系数的贡献； (3) 揭示MOF阵列中高效光致电荷传输的指导原则。这些目标是通过晶体学确定的结构与电化学和脉冲激光光谱测量的效率和机制的相关性来实现的。 作为提案的一部分，实践教育计划利用研究领域的广度和吸引力来教育高中水平的未来科学家和教师