Scanning tunneling microscopy of temperature dependent molecular processes at the solution-solid interface

溶液-固体界面处温度依赖性分子过程的扫描隧道显微镜

• 批准号: 1058435
• 负责人: Kerry Hipps
• 金额: $ 37.5万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-02-01 至 2015-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1058435&HistoricalAwards=false
• 关键词: Scanning; tunneling; microscopy; temperature; dependent

Professor Kerry W. Hipps of Washington State University is supported by the Chemical Measurement and Imaging (CMI) Program in the Division of Chemistry to develop a temperature-controlled sample chamber which facilitates variable-temperature STM measurements at the solid liquid interface. The newly developed STM facility will be used to study several basic surface science problems, including the temperature dependence of the structures and formation kinetics of bimolecular physical adsorbates, the temperature dependence of phase transformations in covalently attached monolayers, the mechanisms and kinetics of chemical transformations of preformed organic adlayers, and the role of hydrogen bonding in weakly bound self-assembled structures. The ability to see the ordering and re-ordering of molecules on a surface at different temperatures will significantly impact our understanding of these elementary chemical processes, which are of great importance in many fields, including chemical catalysis, sensor development, solar cells and self-assembly in biological systems. Students will be trained in cutting edge research methods, and WSU outreach programs will be exploited to help Hispanic and Native American students become acquainted with science and math.

华盛顿州立大学的Kerry W. Hipps教授在化学系化学测量和成像（CMI）项目的支持下，开发了一个温控样品室，便于在固液界面进行温度可变的STM测量。新开发的STM设备将用于研究几个基本的表面科学问题，包括双分子物理吸附物的结构和形成动力学的温度依赖性，共价附着单层中相变的温度依赖性，预成型有机层化学转化的机制和动力学，以及氢键在弱结合自组装结构中的作用。在不同温度下观察表面分子的有序和重新排序的能力将显著影响我们对这些基本化学过程的理解，这些基本化学过程在许多领域都非常重要，包括化学催化、传感器开发、太阳能电池和生物系统中的自组装。学生们将接受尖端研究方法的培训，华盛顿州立大学将利用外展项目帮助西班牙裔和美洲原住民学生熟悉科学和数学。