Heterogeneous Catalysis on Plasmonic Metallic Nanostructures: Selective Catalytic Conversion at Lower Temperatures co-Driven by Solar and Thermal Energy

等离激元金属纳米结构的多相催化：太阳能和热能共同驱动的较低温度下的选择性催化转化

基本信息

批准号：
1111770
负责人：
Suljo Linic
金额：
$ 28.5万
依托单位：
Regents of the University of Michigan - Ann Arbor
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-10-01 至 2015-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1111770&HistoricalAwards=false
关键词：
Heterogeneous Catalysis Plasmonic Metallic Nanostructures

项目摘要

Professor Suljo Linic of the University of Michigan Ann Arbor is jointly supported by the Chemical Catalysis Program of the Division of Chemistry and the Catalysis and Biocatalysis Program of the Chemical, Bioengineering, Environmental, and Transport Systems Division to test the hypothesis that plasmonic nanostructures of silver (Ag) can concurrently utilize thermal energy and a low intensity photon flux to drive catalytic oxidation reactions on Ag nanoparticles at lower temperatures than conventional thermally-driven processes. Ag nanostructures of targeted sizes and shapes will be prepared and used to tune the energy of surface plasmons and control the transfer of energetic electrons into adsorbate states (orbitals) in order to achieve selective chemical transformations. The proposed experiments will be combined with theoretical calculations.Despite substantial advances in the science of heterogeneous catalysis over the years, much remains to be done for the rational design and synthesis of catalytic materials for targeted chemical transformations. The proposed research will focus on the investigation of the potential of plasmonic metallic nanostructures to activate targeted chemical transformations using low intensity light flux, allowing the catalysts to operate at lower temperatures. This promises to significantly improve catalysts stability, energy efficiency, and product selectivity. Students will be trained in sophisticated research methods, and activities will be organized to educate high school students and the general public on heterogeneous catalysis using web vehicles of content delivery such as YouTube.

密歇根大学Ann Arbor大学的Suljo Linic教授得到了化学催化计划，化学催化计划以及化学，生物工程，环境和运输系统部的催化和生物催化计划，以测试对银色的牛等离子能量的假设，可在低强度的速度上驱动型号的牛仔构造，并同时使用catt of的反应性。与传统热驱动过程相比，温度较低的纳米颗粒。将准备靶向大小和形状的Ag纳米结构，并用于调整表面等离子体的能量，并控制能量电子转移到吸附剂状态（轨道），以实现选择性化学转化。提出的实验将与理论计算相结合。尽管多年来，异质催化科学的实质性进步，但对于有针对性化学转化的催化材料的合理设计和合成，还有许多事情要做。拟议的研究将重点介绍血浆金属纳米结构使用低强度光通量激活靶向化学转化的潜力，从而使催化剂可以在较低的温度下运行。这有望显着提高催化剂稳定性，能源效率和产品选择性。学生将接受成熟研究方法的培训，并将使用内容交付等内容交付的网络车辆（例如YouTube）进行教育高中生和公众进行异质催化的教育。