CAS: Synthesis and Reactivity of Oxygen-atom Vacancies in Molecular Vanadium Oxide Assemblies
CAS:氧化钒分子组装体中氧原子空位的合成和反应性
基本信息
- 批准号:2154727
- 负责人:
- 金额:$ 49.89万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-07-01 至 2025-06-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
With the support of the Chemical Synthesis program in the Division of Chemistry, Ellen Matson of the University of Rochester will study the synthesis and reactivity of oxygen-atom vacancies at the surface of vanadium oxide clusters. In considering the global challenges society faces today, the issue of securing future energy resources is particularly conspicuous. As fossil fuels are depleted, chemists have turned their focus to investigating synthetic methods for the conversion of abundant greenhouse gases into energy-rich chemical fuels. A central challenge to developing sustainable and renewable fuel production strategies is the activation of these small molecules. Industrially, solid-state metal oxide catalysts have been shown effective for the mediation of small molecule activation reactions (e.g., the reduction of CO2 to methanol). Reactive metal ions, accessed through the loss of an oxygen atom from the surface of the material, have been proposed to participate in small molecule activation reactions. To elucidate properties of multimetallic systems that inform the surface reactivity of these materials, the Matson Laboratory will study how the elemental composition of vanadium oxide clusters translates to the propensity of oxygen-atoms to be removed from the assembly. These studies will aid in the elucidation of design criteria of superior catalysts for the production of chemical fuels. Dr. Matson will continue to provide leadership in a campus-wide effort to improve diversity, equity, and inclusion in science, technology, engineering, and mathematics (STEM) departments, and in organizing the Western New York Symposium in inorganic chemistry.This project aims to develop and study the synthesis and reactivity of oxygen-atom vacancies at the surface of vanadium oxide clusters. Oxygen-atom vacancies at the surface of heterogeneous, reducible metal oxides play a critical role in the conversion of inert, energy-poor substrates to energy-rich chemical fuels. Understanding the mechanism(s) by which these defect sites form, and the structure-function relationships that define the generation and reactivity of O-atom vacancies, will provide a template for the strategic design of materials with enhanced activity. During the funding period, Matson will study new schemes for the formation of oxygen-atom defects at the surface of polyoxovanadate-alkoxide clusters. Subsequently, Matson will investigate the role cation- and anion-dopants, as well as surface ligands, play in modulating the formation of oxygen-atom vacancies at the surface of the assembly. Characterization of all complexes will be performed via 1H NMR, infrared, and electronic absorption spectroscopy, as well as electrospray ionization mass spectrometry and single crystal X-ray diffraction. Additional kinetic analysis will provide insight into mechanisms and activation parameters associated with oxygen-atom vacancy formation at the surface of the cluster.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
在化学系化学合成项目的支持下,罗切斯特大学的埃伦马特森将研究氧化钒团簇表面氧原子空位的合成和反应性。在考虑当今社会面临的全球挑战时,确保未来能源的问题尤为突出。随着化石燃料的枯竭,化学家们将注意力转向研究将大量温室气体转化为能源丰富的化学燃料的合成方法。开发可持续和可再生燃料生产战略的一个核心挑战是这些小分子的活化。在工业上,固态金属氧化物催化剂已经显示出对于介导小分子活化反应(例如,将CO2还原为甲醇)。已经提出通过从材料表面损失氧原子而获得的活性金属离子参与小分子活化反应。 为了阐明告知这些材料的表面反应性的多金属系统的性质,马特森实验室将研究钒氧化物簇的元素组成如何转化为氧原子从组装中去除的倾向。这些研究将有助于阐明化学燃料生产用上级催化剂的设计标准。马特森博士将继续领导全校努力提高科学、技术、工程和数学(STEM)部门的多样性、公平性和包容性,并组织无机化学的西纽约研讨会。该项目旨在开发和研究氧化钒簇表面氧原子空位的合成和反应性。在非均相、可还原的金属氧化物的表面处的氧原子空位在惰性、能量贫乏的基质向能量丰富的化学燃料的转化中起关键作用。了解这些缺陷位点形成的机制,以及定义O原子空位的产生和反应性的结构-功能关系,将为具有增强活性的材料的战略设计提供模板。在资助期间,马特森将研究在多氧钒酸盐-醇盐簇表面形成氧原子缺陷的新方案。随后,马特森将调查的作用阳离子和阴离子掺杂剂,以及表面配体,在调节组装表面的氧原子空位的形成。将通过1H NMR、红外和电子吸收光谱以及电喷雾电离质谱和单晶X射线衍射对所有复合物进行表征。额外的动力学分析将提供深入了解机制和激活参数与氧原子空位形成在表面的集群。这个奖项反映了NSF的法定使命,并已被认为是值得通过评估使用基金会的智力价值和更广泛的影响审查标准的支持。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Ellen Matson其他文献
Ellen Matson的其他文献
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{{ truncateString('Ellen Matson', 18)}}的其他基金
Collaborative Research: Designing Soluble Inorganic Nanomaterials for Flowable Energy Storage
合作研究:设计用于流动储能的可溶性无机纳米材料
- 批准号:
2015749 - 财政年份:2020
- 资助金额:
$ 49.89万 - 项目类别:
Standard Grant
CAREER: Synthesis, Characterization and Reactivity of Iron-Functionalized Polyoxovanadate-Alkoxide Clusters for the Activation of Small Molecules
职业:用于活化小分子的铁官能化多氧钒酸盐-醇盐簇的合成、表征和反应性
- 批准号:
1653195 - 财政年份:2017
- 资助金额:
$ 49.89万 - 项目类别:
Continuing Grant
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- 批准年份:2016
- 资助金额:58.0 万元
- 项目类别:面上项目
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