Reactive Collisions and Soft-Landing of Polyatomic Ions at Surfaces

表面多原子离子的反应碰撞和软着陆

基本信息

批准号：
9732670
负责人：
Robert Cooks
金额：
$ 70.2万
依托单位：
Purdue University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1998
资助国家：
美国
起止时间：
1998-08-15 至 2003-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9732670&HistoricalAwards=false
关键词：
Reactive Collisions Soft Landing Polyatomic

项目摘要

This research project, supported by the Analytical and Surface Chemistry Program, focuses on the study of fundamentals of reactive collisions and soft-landing of polyatomic ions at surfaces. Professor Cooks and his students at Purdue University will contrast soft-landed ions at self-assembled monolayers with landing into vacuum-compatible liquid films. The functional groups available for reaction with impinging polyatomic ions at both of these surfaces will be varied to control the properties of the reaction products produced by these collisions. New multi-quadrupole instrumentation will be built and used in conjunction with existing multi-sector mass spectrometry instrumentation in pursuing this work. This project will provide a strong educational experience for students in the areas of mass spectrometry and surface science. The nature of chemical reactions that occur at surfaces involving projected polyatomic ion reactants remains poorly understood. Professor Cooks and his students at Purdue University will study the chemical reactions occurring between these polyatomic ions and a range of surfaces that exhibit diverse chemical properties. The long-term objective of this work is to develop new methods for the characterization of chemical reactions that occur at surfaces and to produce surfaces that have desired chemical features. The results of this work will have technological value in applications that depend on having surfaces with controlled chemical and physical properties.

该研究项目在分析和表面化学计划的支持下，重点介绍了反应性碰撞基础知识和表面上多原子离子软地面的基础知识。普渡大学的库克斯教授和他的学生将在自组装的单层中对比柔软的离子与降落到与真空兼容的液体膜中。可用于撞击这两个表面的多原子离子的反应的官能团将有所不同，以控制这些碰撞产生的反应产物的性质。在追求这项工作时，将与现有的多部门质谱仪器一起构建和使用新的多肢仪器。该项目将为质谱和表面科学领域的学生提供丰富的教育经验。在涉及预测的多原子反应物的表面上发生的化学反应的性质仍然知之甚少。普渡大学库克（Cooks）和他的学生将研究这些多原子离子与表现出多种化学特性的一系列表面之间发生的化学反应。这项工作的长期目标是开发新方法，以表征在表面上发生的化学反应并产生所需的化学特征的表面。这项工作的结果将具有技术价值，该应用取决于具有具有控制化学和物理特性的表面。