Heterogeneous Reaction Rate Studies of Cloud and Fog Droplets
云雾液滴的非均相反应速率研究
基本信息
- 批准号:9013073
- 负责人:
- 金额:$ 41.95万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1990
- 资助国家:美国
- 起止时间:1990-07-01 至 1994-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Heterogeneous reaction pathways involving water droplets in clouds and fogs are important conduits for chemical transformation of important atmospheric trace gases. One of the basic parameters which determines the transfer rate of trace gases into atmospheric droplets is the mass accommodation or "sticking" coefficient for trace gas molecules on aqueous surfaces. In this research project the study of atmospherically important heterogeneous process including measurement of the mass accommodation coefficients and their temperature dependence for a variety of species will be undertaken. Additionally, studies of the effect on sulfur dioxide uptake of ion chemistry and co- deposition of two gases such as sulfur dioxide and ammonia, the chemistry of surface species, and the effect of electric charge and surfactant coating on gas-liquid interaction are planned. This research is motivated by the importance of heterogeneous reaction pathways involving water droplets in clouds and fogs as conduits for chemical transformation of atmospheric trace gases. For example, one of the basic parameters which determines the transfer rate of trace gases into atmospheric droplets is the mass accommodation or "sticking" coefficient for trace gas molecules on aqueous surfaces.
云雾中水滴的非均相反应途径是重要大气微量气体化学转化的重要通道。决定微量气体向大气液滴传递速率的基本参数之一是微量气体分子在水表面的质量容纳或“粘附”系数。在本研究项目中,将对大气重要的非均质过程进行研究,包括测量各种物种的质量调节系数及其对温度的依赖关系。此外,还计划研究离子化学对二氧化硫吸收的影响以及二氧化硫和氨两种气体的共沉积,表面物质的化学性质以及电荷和表面活性剂涂层对气液相互作用的影响。这项研究的动机是由于云和雾中的水滴作为大气微量气体化学转化的管道的非均相反应途径的重要性。例如,决定微量气体进入大气液滴的传输速率的基本参数之一是水表面微量气体分子的质量容纳或“粘附”系数。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Paul Davidovits其他文献
Paul Davidovits的其他文献
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{{ truncateString('Paul Davidovits', 18)}}的其他基金
Collaborative Research: Laboratory Investigations of Particle-Organic Vapor Interactions: Effects on Particle Formation, Growth, and Properties
合作研究:颗粒-有机蒸气相互作用的实验室研究:对颗粒形成、生长和特性的影响
- 批准号:
1536939 - 财政年份:2015
- 资助金额:
$ 41.95万 - 项目类别:
Standard Grant
Collaborative Research: Theoretical and Experimental Characterization of the Dynamics of Secondary Organic Aerosol (SOA) Materials
合作研究:二次有机气溶胶(SOA)材料动力学的理论和实验表征
- 批准号:
1506768 - 财政年份:2015
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
Collaborative Research: Flow Reactor Simulations of the Evolution of Atmospheric Organic Aerosol
合作研究:大气有机气溶胶演化的流动反应器模拟
- 批准号:
1244918 - 财政年份:2013
- 资助金额:
$ 41.95万 - 项目类别:
Standard Grant
Collaborative Research: Laboratory Studies of Formation, Aging and Physicochemical Properties of Atmospheric Organic Particulate Matter
合作研究:大气有机颗粒物形成、老化及理化性质的实验室研究
- 批准号:
0854916 - 财政年份:2009
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
Effect of Heterogeneous Interactions on Optical, Hygroscopic, and Cloud Condensation Nuclei (CCN) Properties of Organic Atmospheric Aerosols
非均质相互作用对有机大气气溶胶光学、吸湿和云凝结核 (CCN) 性质的影响
- 批准号:
0525355 - 财政年份:2005
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
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 - 财政年份:2002
- 资助金额:
$ 41.95万 - 项目类别:
Standard Grant
Laboratory Studies of Heterogeneous/Multiphase Interactions of Atmospheric Trace Gases and Aerosols
大气微量气体和气溶胶的非均质/多相相互作用的实验室研究
- 批准号:
9905551 - 财政年份:1999
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
ACCESS IV: 1997 Atmospheric Chemistry Colloquium for Emerging Senior Scientists; Boston, Massachusetts; June 12-14, 1997
ACCESS IV:1997 年新兴高级科学家大气化学研讨会;
- 批准号:
9711266 - 财政年份:1997
- 资助金额:
$ 41.95万 - 项目类别:
Standard Grant
Laboratory Studies of Heterogeneous Gas-Liquid Interactions of Atmospheric Trace Gases
大气痕量气体非均相气液相互作用的实验室研究
- 批准号:
9632599 - 财政年份:1996
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
Laboratory Studies of Heterogeneous Gas-Liquid Interaction of Atmospheric Trace Gases
大气痕量气体非均相气液相互作用的实验室研究
- 批准号:
9310407 - 财政年份:1993
- 资助金额:
$ 41.95万 - 项目类别:
Continuing Grant
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