CAREER: A Bio-Inspired Approach to Engineer Zeolite Catalysts

职业生涯：采用仿生方法设计沸石催化剂

• 批准号: 1151098
• 负责人: Jeffrey Rimer
• 金额: $ 40万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1151098&HistoricalAwards=false
• 关键词: CAREER; Bio; Inspired; Approach; Engineer

Abstract#1151098P.I.: Jeffrey RimerTailoring crystallization of zeolites with predictable structural outcomes is a challenge in zeolite catalyst design, wherein few synthetic approaches are amenable to systematic and precise manipulation of material properties. Developing facile, inexpensive routes to precisely control crystal habit (i.e. morphology and orientation) can address design limitations that often marginalize catalyst performance and can hinder their commercial viability. Prof. Jeffrey Rimer of the University of Houston proposes in his CAREER award study to develop a rational design strategy for improving the mass transport properties of zeolite catalysts, notably a reduction in the internal pore diffusion path length and an increase in the exterior pore surface area, which are known to markedly improve activity and stability. With this award, Rimer will leverage research thrusts in crystal engineering and surface science to tailor zeolite crystallization at an interfacial level, using a bio-inspired approach to tune crystal habit and surface architecture, and ultimately to test catalyst activity as a function of these variables. This design approach mimics crystallization in nature by using modifiers with molecular recognition for binding to specific surfaces and mediating step growth on crystal faces. Initiatives will focus on reactions of model compounds with a long-term trajectory of establishing a comprehensive platform to design, model, and test zeolites for alternative energy applications.This award will be used to strengthen outreach initiatives at the K-12, undergraduate, and graduate levels to promote engineering education and research. Rimer has partnered with KIPP Houston High School (a minority institution ranked 16th in national college readiness) to establish a dynamic program for student and teacher (NSF-RET) research at the University of Houston, guest lectures on engineering topics to KIPP AP Chemistry students, lesson plans that integrate results of Rimer's research, and an annual seminar to promote increased interest in STEM.

摘要#1151098P.I.：Jeffrey Rimer在沸石催化剂设计中是一个挑战，因为很少有合成方法能够系统和精确地控制材料的性质。开发简便、廉价的方法来精确控制结晶习惯(即形态和取向)，可以解决经常使催化剂性能边缘化并可能阻碍其商业可行性的设计限制。休斯顿大学的杰弗里·里默教授在他的职业生涯奖研究中建议开发一种合理的设计策略来改善沸石催化剂的传质性能，特别是减少内部孔扩散路径长度和增加外部孔表面积，这是众所周知的显著提高活性和稳定性的方法。有了这一奖项，里默将利用晶体工程和表面科学方面的研究推动力，在界面水平上定制沸石结晶，使用生物启发的方法来调整晶体习惯和表面结构，并最终测试催化剂活性作为这些变量的函数。这种设计方法通过使用具有分子识别功能的修饰剂结合到特定表面并在晶面上调节阶梯生长来模拟自然界中的结晶。该奖项将用于加强K-12、本科生和研究生层面的推广活动，以促进工程学教育和研究。Rmer与KIPP休斯顿高中(在全国大学就绪率排名第16的少数族裔学校)合作，在休斯顿大学建立了一个学生和教师研究(NSF-RET)的动态课程，为KIPP AP化学专业的学生举办关于工程主题的客座讲座，整合Rmer研究成果的教案，以及促进人们对STEM兴趣的年度研讨会。