Alkali Metal Promoted Adsorbate Photochemistry and Catalysis

碱金属促进吸附物光化学和催化

• 批准号: 0415540
• 负责人: Ian Harrison
• 金额: $ 45.6万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-01 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0415540&HistoricalAwards=false
• 关键词: Alkali; Metal; Promoted; Adsorbate; Photochemistry

AbstractCHE-0415540Harrison/VirginiaWith the support of the Analytical and Surface Chemistry Program, Professor Harrison and his coworkers in the Department of Chemistry at the University of Virginia are exploring the detailed photochemical dynamics of small molecules on alkali promoted platinum and ruthenium surfaces. Using a combination of UHV spectroscopic probes and theoretical calculations, the effects of alkali metal adsorption on the photodissociation dynamics of molecules such as CO2, CH4, and N2 are being examined. Information from these fundamental studies is useful in the subsequent design of energy efficient photocatalytic processes for energy production and environmental remediation. The use of solar energy to drive catalytic processes for the formation of new energy and chemical feedstocks, and the remediation of environmental contaminants, relies on an understanding of the detailed surface photochemical processes on the catalyst. Professor Harrison and his coworkers at the University of Virginia are addressing these fundamental questions with a research program of experimental measurement and calculational modeling. They are specifically interested in the effects of alkali metal promotion on the photodissociation dynamics of small molecules on well characterized platinum and ruthenium surfaces.

在分析和表面化学计划的支持下，弗吉尼亚大学化学系的哈里森教授和他的同事们正在探索碱促进的铂和Ru表面上小分子的详细光化学动力学。利用超高真空光谱探针和理论计算相结合的方法，研究了碱金属吸附对二氧化碳、甲烷和氮气等分子光解动力学的影响。来自这些基础研究的信息有助于随后设计用于能源生产和环境修复的高能效光催化过程。利用太阳能推动形成新能源和化学原料的催化过程以及环境污染物的修复，取决于对催化剂表面光化学过程的详细了解。弗吉尼亚大学的哈里森教授和他的同事们正在通过一个实验测量和计算建模的研究项目来解决这些基本问题。他们特别感兴趣的是碱金属促进对铂和钚表面小分子光解动力学的影响。