期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 14, 页码 3820-3824出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710989
关键词
accretion products; atmospheric chemistry; mass spectrometry; radical reactions
资金
- Austrian Research Funding Association (FFG) [846050]
- IONICON Analytik GmbH
Hydrocarbons are emitted into the Earth's atmosphere in very large quantities by human and biogenic activities. Their atmospheric oxidation processes almost exclusively yield RO2 radicals as reactive intermediates whose atmospheric fate is not yet fully unraveled. Herein, we show that gas-phase reactions of two RO2 radicals produce accretion products composed of the carbon backbone of both reactants. The rates for accretion product formation are very high for RO2 radicals bearing functional groups, competing with those of the corresponding reactions with NO and HO2. This pathway, which has not yet been considered in the modelling of atmospheric processes, can be important, or even dominant, for the fate of RO2 radicals in all areas of the atmosphere. Moreover, the vapor pressure of the formed accretion products can be remarkably low, characterizing them as an effective source for the secondary organic aerosol.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据