CAREER: The Direct Determination of Rate Constants and Branching Ratios for Methylperoxy Reactions Under Atmospherically Relevant Conditions

职业生涯：在大气相关条件下直接测定甲基过氧反应的速率常数和支化比

• 批准号: 9874752
• 负责人: Matthew Elrod
• 金额: $ 18.1万
• 依托单位: Hope College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-01 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9874752&HistoricalAwards=false
• 关键词: CAREER; Direct; Determination; Rate; Constants

This award was made under the NSF CAREER Program and is supported jointly by the Atmospheric Chemistry and the Experimental Physical Chemistry Programs. The research component of this project consists of experimental chemical kinetics measurements that address the role of the methyl peroxy radical (CH3O2) in tropospheric and stratospheric processes, with a focus on reactions which may affect ozone destruction and production cycles. A secondary objective is to further the development of the chemical ionization mass spectrometry (CIMS) technique as a promising new method for both laboratory and field detection of atmospheric species. The turbulent flow-CIMS method will be used to measure rates at temperature and pressure conditions characteristic of the troposphere and lower stratosphere. In addition, sensitive and selective chemical ionization schemes will be developed for measurements at low absolute concentrations and for unambiguous monitoring of reactants and products. The primary objective of the education plan is to enhance the quality of Hope College's chemistry program through a systematic implementation of innovative teaching techniques and by introducing environmental chemistry topics in both the classroom and the undergraduate research setting. Collaborative learning techniques will be used, and research-related case studies will be incorporated into the teaching.

该奖项是在NSF职业计划下颁发的，并由大气化学和实验物理化学计划共同支持。 该项目的研究部分包括实验性化学动力学测量，以探讨甲基过氧自由基（CH 3 O2）在对流层和平流层过程中的作用，重点是可能影响臭氧破坏和产生周期的反应。第二个目标是进一步发展化学电离质谱（CIMS）技术，作为一种有前途的新方法，用于实验室和现场检测大气物种。湍流-CIMS方法将用于测量对流层和低平流层特有的温度和压力条件下的速率。此外，将开发灵敏和选择性的化学电离方案，用于在低绝对浓度下进行测量，并用于明确监测反应物和产物。 该教育计划的主要目标是通过系统地实施创新的教学技术，并通过在课堂和本科生研究环境中引入环境化学主题，提高希望学院化学课程的质量。合作学习技术将被使用，与研究相关的案例研究将被纳入教学。