Inorganic Membranes: Microstructural Design, Optimization and Reaction Studies

无机膜：微观结构设计、优化和反应研究

• 批准号: 9907321
• 负责人: Arvind Varma
• 金额: $ 30.91万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9907321&HistoricalAwards=false
• 关键词: Inorganic; Membranes; Microstructural; Design; Optimization

The successful industrial application of inorganic membranes for separation and reaction depends critically on the ability to produce membranes of desired microstructural, permeation, mechanical, and thermal properties. In this project emphasis will be placed on the preparation of inorganic membranes with controlled microstructure and on the relationship between membrane microstructure and properties. The focus will be on Pd-based composite membranes for hydrogen separations and on porous stainless steel membranes for reactor applications. Precise microstructural control of electroless plated films by the use of osmotic pressure has been demonstrated in initial experiments. Detailed studies related to the influence of osmosis on membrane microstructure and properties will be conducted. Characterization of the microstructural parameters that optimize permeation performance of the synthesized Pd-based membranes will be performed. For porous membranes, issues concerning optimal nonuniform membrane permeation patterns will be investigated for parallel and consecutive catalytic reaction networks. The objective is to examine, both by experiments and models, the performance of mesoporous stainless steel membranes under reaction conditions. The possibility of tailoring the membrane structure and permeation characteristics will be investigated to optimize reactor performance. This project will contribute to an understanding of the fundamental relationship between synthesis and structure and the effects of structure on membrane properties.

用于分离和反应的无机膜的成功工业应用关键取决于生产具有所需微观结构、渗透、机械和热性能的膜的能力。 本项目的重点将放在具有可控微结构的无机膜的制备以及膜的微结构与性能之间的关系上。 重点将是用于氢分离的钯基复合膜和用于反应器应用的多孔不锈钢膜。 在最初的实验中已经证明了通过使用渗透压来精确控制化学镀膜的微观结构。 详细研究渗透对膜微观结构和性能的影响。 将进行优化合成的Pd基膜的渗透性能的微观结构参数的表征。 对于多孔膜，有关最佳的非均匀膜渗透模式的问题将被调查的并行和连续的催化反应网络。 目的是检查，无论是通过实验和模型，反应条件下的介孔不锈钢膜的性能。 将研究定制膜结构和渗透特性以优化反应器性能的可能性。 该项目将有助于理解合成和结构之间的基本关系以及结构对膜性能的影响。