US-Jordan Cooperative Research: Experimental and Modeling Studies of Surface Growth on TiO2 Particles

描述：该奖项是为了支持俄亥俄州克利夫兰凯斯西储大学化学工程系Philip Morrison教授和约旦伊尔比德约旦科技大学化学工程系Lua'y Zeatoun博士的合作项目。在Case Western最近的工作中，采用活塞压缩方法研究了TiCl4的高分压氧化动力学，并通过分析数据建立了预测TiCl4分数转化的模型。这项工作没有考虑到在TiO2颗粒成核时在其表面发生的非均相反应。在这项研究中，合作科学家计划通过实验和建模研究来研究表面反应在TiO2形成中的作用。莫里森博士在凯斯韦斯特大学的团队将通过向反应气体中注入二氧化钛颗粒并进行压缩实验来测量表面反应速率。Zeatoun博士在JUST的团队将对发生在气相和表面反应中的扩散反应过程进行数值模拟。范围：两位合作者计划结合他们在实验工作和数学建模方面的专业知识来处理一个有趣的科学问题。PI拥有丰富的经验，并且可以使用Case Western的广泛设施。这位约旦科学家在建模方面有经验。这一研究将提高我们对TiO2b颗粒形成过程的认识，并将在纳米尺度的应用中发挥重要作用。该项目符合国际情报机构支持互利合作项目的标准。国际科学和工程办公室以及化学和运输系统司为这个项目提供支助。

0137689Morrison Description: This award is for support of a cooperative project by Professor Philip Morrison, Department of Chemical Engineering, Case Western Reserve University, Cleveland, Ohio and Dr. Lua'y Zeatoun, Department of Chemical Engineering, Jordan University of Science and Technology (JUST), Irbid, Jordan. In recent work at Case Western, a piston compression method was used to study high partial pressure kinetics of TiCl4 oxidation, and by analyzing the data a model was developed for predicting the fractional conversion of TiCl4. This work does not take into account heterogeneous reactions that will occur on the surfaces of the TiO2 particles as they nucleate. In this research the collaborating scientists plan to study the role of surface reactions in TiO2 formation by conducting experimental and modeling research. Dr. Morrison's team at Case Western will measure experimentally the surface reaction rate by seeding the reactive gas with TiO2 particles and performing compression experiments. Dr. Zeatoun's team at JUST will perform numerical simulations of the diffusion-reaction process occurring in both the gas phase and on the surface reactions.Scope: The two collaborators plan to combine their expertise in experimental work and in mathematical modeling in dealing with an interesting scientific problem. The PI has considerable experience and has access to extensive facility at Case Western. The Jordanian scientist has experience in modeling. This research should improve our understanding of the process of formation of TiO2b particles and should be especially useful in applications of nano-scale. The project meets INT criteria for support of cooperative projects that are mutually beneficial. Support for this project is provided by the Office of International Science and Engineering and the Division of Chemical and Transport Systems.