气溶胶
水溶液
化学反应
化学
环境化学
材料科学
化学工程
化学物理
纳米技术
有机化学
工程类
作者
David T. Limmer,Andreas Goetz,Timothy H. Bertram,Gilbert M. Nathanson
标识
DOI:10.1146/annurev-physchem-083122-121620
摘要
Atmospheric aerosols facilitate reactions between ambient gases and dissolved species. Here, we review our efforts to interrogate the uptake of these gases and the mechanisms of their reactions both theoretically and experimentally. We highlight the fascinating behavior of N 2 O 5 in solutions ranging from pure water to complex mixtures, chosen because its aerosol-mediated reactions significantly impact global ozone, hydroxyl, and methane concentrations. As a hydrophobic, weakly soluble, and highly reactive species, N 2 O 5 is a sensitive probe of the chemical and physical properties of aerosol interfaces. We employ contemporary theory to disentangle the fate of N 2 O 5 as it approaches pure and salty water, starting with adsorption and ending with hydrolysis to HNO 3 , chlorination to ClNO 2 , or evaporation. Flow reactor and gas-liquid scattering experiments probe even greater complexity as added ions, organic molecules, and surfactants alter the interfacial composition and reaction rates. Together, we reveal a new perspective on multiphase chemistry in the atmosphere. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 75 is April 2024. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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