Engineering Research Equipment: Scanning Tunnelling Microscope

工程研究设备： 扫描隧道显微镜

• 批准号: 8907250
• 负责人: Jay Benziger
• 金额: $ 5万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8907250&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Scanning; Tunnelling

A scanning tunnelling microscope (STM) is being acquired. This will be use in conjunction with existing equipment for low-energy electron diffraction, Auger electron spectroscopy, reflection infrared spectroscopy, and temperature-programmed reaction. It will be used to examine restructured surfaces to identify active sites for catalytic reactions. Specific systems to be studied include tungsten surfaces that have undergone restructuring due to oxygen or sulfur adlayers, which have high activity for thiophene adsorption; adsorbate-induced restructuring of adlayers, such as nickel(100) in the presence of carbon monoxide; and the structures of surface polymers, such as those formed from thiophene, aniline, or lutidine.

扫描隧道显微镜（STM）正在被收购。 这将 与用于低能电子现有设备结合使用 衍射，俄歇电子能谱，反射红外 光谱学和程序升温反应。 它将用于 检查重组的表面，以确定催化剂的活性位点 反应. 要研究的具体系统包括钨表面 由于氧或硫吸附层而经历了重组， 其对噻吩吸附具有高活性;吸附物诱导的 吸附层的重组，例如镍（100）在 一氧化碳;和表面聚合物的结构，如那些 由噻吩、苯胺或二甲基吡啶形成。