CAREER: Exploring Particle Size Dependent Surface Chemistry on Supported Metal Nanoparticles

职业：探索负载型金属纳米粒子的粒径依赖性表面化学

• 批准号: 0133926
• 负责人: Donna Chen
• 金额: $ 45.3万
• 依托单位: University South Carolina Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-05-01 至 2008-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0133926&HistoricalAwards=false
• 关键词: CAREER; Exploring; Particle; Size; Dependent

This Career Award, provided by the Analytical and Surface Chemistry Program, supports the research and educational program of Professor Donna Chen of the University of South Carolina at Columbia. Her research addresses the chemistry of metal on oxide surfaces at the atomic level. Using thermal desorption spectroscopy in combination with X-ray photoelectron spectroscopy and scanning tunneling microscopy, the growth and surface chemistry of Ag and Pt nanoparticles deposited on titanium dioxide single crystal surfaces are being examined. The oxidation of ethylene to ethylene oxide, and the reduction of NO with CO will be used as probe reactions to examine the detailed surface chemistry of these metal on oxide systems. This approach will be extended to bimetallic nanoparticles as well. The integration of undergraduate and graduate research participants in this research program forms the focus of the educational plan in this Career Award. Interactive learning using web based tutorials and peer study groups are being implemented in the undergraduate curriculum, and the integration of research problem solving approaches in the courses of the P.I. is being implemented. The application of modern ultra-high vacuum surface science tools to the microscopic understanding of the surface chemistry of metallic nanoparticles on oxide surfaces forms the focus of this Career Award. The Analytical and Surface Chemistry Program supports the research and educational activities of Professor Donna Chen at the University of South Carolina. Scanning tunneling microscopy and electron spectroscopy are the major tools applied to the interactions of Ag and Pt particles with oxide surfaces. Integrating undergraduate and graduate student research with the curriculum, and the use of interactive learning methods form the focus of the educational aspects of this Career Award.

该职业奖由分析和表面化学项目提供，支持哥伦比亚南卡罗来纳州大学的Donna Chen教授的研究和教育计划。 她的研究涉及氧化物表面金属在原子水平上的化学。 使用热脱附光谱结合X射线光电子能谱和扫描隧道显微镜，银和铂纳米粒子沉积在二氧化钛单晶表面的生长和表面化学正在研究。 乙烯氧化为环氧乙烷，和NO与CO的还原将被用作探针反应，以检查这些金属氧化物系统的详细表面化学。 这种方法也将扩展到纳米粒子。 本科生和研究生研究参与者在这个研究计划的整合形成了这个职业奖的教育计划的重点。 利用基于网络的教程和同伴学习小组的互动学习正在本科课程中实施，并在P.I.课程中整合研究问题解决方法。正在实施。应用现代超高真空表面科学工具对氧化物表面上金属纳米颗粒的表面化学进行微观理解是该职业奖的重点。 分析和表面化学项目支持南卡罗来纳州大学Donna Chen教授的研究和教育活动。 扫描隧道显微镜和电子能谱是应用于Ag和Pt颗粒与氧化物表面相互作用的主要工具。 将本科生和研究生的研究与课程相结合，并使用互动学习方法，这是该职业奖教育方面的重点。