RUI: Preparation and Characterization of Dendrimer Templated Au-M Nanoparticles and Catalysts

RUI：树枝状聚合物模板 Au-M 纳米粒子和催化剂的制备和表征

• 批准号: 1012395
• 负责人: Bert Chandler
• 金额: $ 26万
• 依托单位: Trinity University
• 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 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012395&HistoricalAwards=false
• 关键词: RUI; Preparation; Characterization; Dendrimer; Templated

Professor Bert D. Chandler of Trinity University is supported by the Chemical Catalysis Program in the Division of Chemistry to develop new synthetic techniques for the preparation of solid oxide supported bimetallic nanoparticle catalysts and study reaction mechanisms over these heterogeneous catalysts. The bimetallic nanoparticles will be prepared in solution, using a dendrimer encapsulation synthetic route and then deposited onto high surface area support. Two kinetics-based analytical techniques will be employed to probe and evaluate the catalytic activity of the bimetallic nanoparticles: Selective inhibition will be used to interrogate the CO oxidation active sites and Hammett relationships for aerobic benzyl alcohol oxidation will be used to probe changes in nanoparticle surface charge. Supported bimetallic nanoparticles are an important class of heterogeneous catalysts that are employed throughout the chemical industry. A fundamental understanding of the interplay between metal functions in bimetallic catalysts will informs the design of new catalysts with less reliance on expensive platinum group metals. Integrating undergraduate students in a primarily undergraduate institution into this research project early in their chemical career will motivate them to pursue this line of research and consequently enhance the chemical catalysis workforce.

三一大学的 Bert D. Chandler 教授在化学系化学催化项目的支持下，开发用于制备固体氧化物负载的双金属纳米粒子催化剂的新合成技术，并研究这些多相催化剂的反应机理。 双金属纳米粒子将使用树枝状大分子封装合成路线在溶液中制备，然后沉积到高表面积载体上。 将采用两种基于动力学的分析技术来探测和评估双金属纳米粒子的催化活性：选择性抑制将用于询问CO氧化活性位点，有氧苯甲醇氧化的哈米特关系将用于探测纳米粒子表面的变化收费。 负载型双金属纳米颗粒是化学工业中广泛使用的一类重要的多相催化剂。 对双金属催化剂中金属功能之间相互作用的基本了解将为新型催化剂的设计提供信息，从而减少对昂贵的铂族金属的依赖。 在化学职业生涯的早期将本科院校的本科生纳入该研究项目将激励他们从事这一领域的研究，从而增强化学催化队伍。