Formation of organic aerosols from cyclic olefins and diolefins
Formation of organic aerosols from cyclic olefins and diolefins
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由环烯烃和二烯烃形成有机气溶胶
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
S. Friedlander
中科院分区：
文献类型：
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作者：
D. Grosjean;S. Friedlander
在大型室外烟雾室中进行的实验中研究了碳氢化合物前体的光化学有机气溶胶的形成，实验涉及环境空气中ppm水平的烯烃和氮氧化物的阳光照射。环己烯、环戊烯和1，7-辛烯产生了大量的有机气溶胶（以碳为基础，初始烯烃浓度的5 - 39%），气溶胶产生速率范围为1.5 - 40.6微克C/立方米/分钟。通过质谱鉴定的产物包括二羧酸和其它带有羧酸、醛、羟基、或硝酸酯基团。这些产品的形成占烯烃-臭氧和烯烃-羟基自由基反应。
The formation of photochemical organic aerosols from hydrocarbon precursors has been investigated in experiments performed in a large outdoor smog chamber and involving sunlight irradiation of ppm levels of olefinic hydrocarbons and nitrogen oxides in ambient air. Cyclohexene, cyclopentene, and 1,7-octadiene produced large amounts of organic aerosols (5 to 39% of the initial olefin concentration on a carbon basis), with aerosol production rates ranging from 1.5 to 40.6 micrograms C per cu m per min. Products identified by mass spectrometry included dicarboxylic acids and other alpha, omega-difunctional oxygenates bearing carboxylic, aldehyde, hydroxyl, or nitrate ester groups. The formation of these products is accounted for in terms of olefin-ozone and olefin-hydroxyl radical reactions.