Laboratory Studies of Heterogeneous Oxidation and Activation of Atmospheric Organic Aerosols

大气有机气溶胶非均相氧化与活化的室内研究

• 批准号: 0212464
• 负责人: Paul Davidovits
• 金额: $ 52.59万
• 依托单位: Boston College
• 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: 2002-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0212464&HistoricalAwards=false
• 关键词: Laboratory; Studies; Heterogeneous; Oxidation; Activation

This project involves a three-year laboratory study on the nature of organic aerosol surfaces in the presence of water vapor. Laboratory studies will be used to quantify uptake parameters for several species at the gas/liquid interface. The techniques to be used include: a) a droplet train fast flow reactor, b) a bubble train reactor, and c) an aerosol mass spectrometer kinetics apparatus. These techniques make it possible to extract basic quantitative information necessary for modeling heterogeneous/multiphase interactions of gas phase species with atmospheric droplets and aerosols. This effort will improve understanding of heterogeneous chemical processes that take place on the surface of atmospheric aerosols and contribute to understanding the influence of atmospheric aerosols on human health and climate. Through REU supplements to this award, undergraduate students will have opportunities to participate in the research.

该项目涉及一项为期三年的实验室研究，研究有水蒸气存在时有机气溶胶表面的性质。实验室研究将被用来量化吸收参数的几个物种在气/液界面。所使用的技术包括：a）液滴串快速流动反应器，B）气泡串反应器，和c）气溶胶质谱仪动力学装置。这些技术使人们有可能提取基本的定量信息建模气相物质与大气液滴和气溶胶的非均相/多相相互作用所必需的。这项工作将提高对发生在大气气溶胶表面的异质化学过程的理解，并有助于理解大气气溶胶对人类健康和气候的影响。通过REU补充这个奖项，本科生将有机会参与研究。