Inducing molecular single file diffusion by co-adsorption in one-dimensional channels for gas separations and catalysis

通过一维通道中的共吸附诱导分子单列扩散，用于气体分离和催化

• 批准号: 0957641
• 负责人: Clifford Bowers
• 金额: $ 36.4万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0957641&HistoricalAwards=false
• 关键词: Inducing; molecular; single; file; diffusion

In this project supported by the Chemical Structure, Dynamics and Mechanisms Program of the Division of Chemistry, Professors Clifford R. Bowers and Sergey Vasenkov of the University of Florida will employ advanced nuclear magnetic resonance (NMR) techniques to characterize the transport of gases in nanoporous materials. Pulsed field gradient NMR (PFG-NMR) and xenon-129 hyperpolarization techniques will be applied to materials with one-dimensional nanochannels composed of dipeptides, gallium molecular wheels, and aluminum-germanium and aluminum-silicon. The primary goals of the project are (1) to realize the conditions under which a transition between normal and single-file diffusion can be induced by one-component in a multi-component gas mixture inside one-dimensional nanochannels, and (2) to understand the relationship between diffusion and exchange of gases between the bulk and channel-adsorbed phases in such systems. The results of the proposed research may have impacts on the development of new strategies for highly selective separations of mixtures of gases and catalysis. These are two of the most vital industrial processes of our day, with applications to renewable/clean energy. The educational plan integrated into this research project will emphasize the mentoring of undergraduate women and underrepresented minority students, and involvement of high school students in coordination with the University of Florida?s Center for Precollegiate Education and Training.

在这个由化学系化学结构、动力学和机制项目支持的项目中，佛罗里达大学的Clifford R. Bowers教授和Sergey Vasenkov教授将采用先进的核磁共振（NMR）技术来表征纳米多孔材料中气体的传输。脉冲场梯度核磁共振（PFG-NMR）和氙-129超极化技术将应用于由二肽、镓分子轮、铝锗和铝硅组成的一维纳米通道材料。该项目的主要目标是：(1)实现一维纳米通道内多组分气体混合物中单组分诱导正常扩散和单柱扩散过渡的条件；(2)了解该系统中体相和通道吸附相之间的扩散和气体交换之间的关系。所提出的研究结果可能对高选择性分离气体混合物和催化的新策略的发展产生影响。这是当今最重要的两个工业过程，应用于可再生/清洁能源。纳入本研究项目的教育计划将强调对本科女性和未被充分代表的少数民族学生的指导，以及与佛罗里达大学协调的高中生的参与。美国大学预科教育和培训中心。