US-France Cooperative Research: Organic-Inorganic Multifunctional Hybrid Nanomaterials: Spatial Organization of Functional Groups via a Molecular Approach

04369895Davis美国加州理工学院的Mark E. Davis和法国里昂高等师范学院化学实验室的Veronique Dufaud进行了为期三年的美法合作研究项目，重点是制备结构均匀的固体催化剂。拟议的项目是美国和法国研究人员先前关于含有定位磺酸基的介孔二氧化硅的合成和催化行为的工作的延伸。目的是研究有机-无机杂化材料的结构-性能关系，其中无机组分提供表面积和孔隙度，有机基团在其表面组织。沸石基催化剂的研究结果表明，纳米/介观均匀性与高选择性之间存在很强的相关性。研究者建议创建结构一致性，包括：(1)精确排列的多个有机基团，以研究协同性的影响；(2)多种有机基团类型催化多步反应途径。更广泛的影响该提案为活跃的NSF - NIRT（纳米尺度科学与工程独立研究小组）沸石纳米颗粒研究奖增加了一个国际层面。美国研究员是有机-无机杂化材料的合成和表征专家，在催化方面有更广泛的经验。这与法国在合成和表面有机金属化学方面的专业知识相辅相成。他们的努力将促进对新催化剂的理解和创造。催化活性是化学工业的基础。该项目为美国博士后和研究生提供了在法国领先机构进行沉浸式研究的国际经验。该项目提高了学生的国际研究技能，并有助于发展未来的国际联系。

04369895DavisThis three-year U.S.-France cooperative research project between Mark E. Davis of the California Institute of Technology and Veronique Dufaud of the Laboratoire de Chimie, Ecole Normale Superieure in Lyon, France focuses on preparing solid catalysts of structural uniformity. The proposed project is an extension of the U.S. and French investigators previous work on synthesis and catalytic behavior of mesoporous silicas containing positioned sulfonic acid groups. Intellectual MeritThe objective is to investigate structure-property relationships of organic-inorganic hybrid materials where the inorganic component provides surface area and porosity and the organic groups are organized on its surface. Results from zeolite-based catalysts suggest strong correlation between nanoscopic/mesoscopic uniformity and high selectivity. The investigators propose to create structural uniformity that contains: (1) multiple organic groups in precise arrangement in order to study the effects of cooperativity; and (2) multiple organic group types to catalyze multistep reaction pathways. Broader ImpactsThe proposal adds an international dimension to an active NSF - NIRT (Nanoscale Science and Engineering Independent Research Team) research award on zeolite nanoparticles. The U.S. investigator is expert in synthesis and characterization of organic-inorganic hybrid materials and has broader experience in catalysis. This is complemented by French expertise in synthesis and surface organo metallic chemistry. Their efforts will advance understanding and creation of new catalysts. Catalytic activity is the basis for the chemistry industry. The project gives a U.S. postdoctoral research and graduate student an international experience via research immersion at a leading French institution. The project advances the student's international research skills and assists with developing international connections for future.