Atmospheric and interfacial reaction dynamics

大气和界面反应动力学

• 批准号: 138665-2009
• 负责人: Donaldson, DavidJames
• 金额: $ 4.37万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=475882
• 关键词: Atmospheric; interfacial; reaction; dynamics

Over the past funding period we have made significant progress in several areas related to heterogeneous atmospheric chemistry of aqueous, ice and "urban grime" surfaces. We have developed fluorescent probes for determining pH at interfaces and used these to track reactions there; we have demonstrated the ice-surface sensitivity of glancing-angle Raman probes and started to use these to interrogate the quasi-liquid layer; we have quantified the influence of various monolayer organic coatings on ozonation reactions at the air-water interface; we have started to explore and quantify photochemical and especially, photosensitized reactions occurring at interfaces. In many, if not most of these endeavours, we have been the first group to report the technique or its use in atmospheric chemistry.

在过去的资助期内，我们在与水、冰和“城市污垢”表面的非均匀大气化学有关的几个领域取得了重大进展。我们已经开发出荧光探针来测定界面处的pH值，并用它们来跟踪那里的反应；我们已经证明了掠角拉曼探针的冰表面灵敏度，并开始使用这些探针来询问准液体层；我们量化了各种单层有机涂层对空气-水界面臭氧化反应的影响；我们已经开始探索和量化光化学，特别是发生在界面上的光敏反应。在这些努力中，如果不是大多数，我们是第一个报告该技术或其在大气化学中的应用的小组。