Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL072585 |
Rapid heterogeneous oxidation of organic coatings on submicron aerosols | |
Lim, C. Y.1; Browne, E. C.2; Sugrue, R. A.1; Kroll, J. H.1 | |
2017-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Laboratory studies have found that heterogeneous oxidation can affect the composition and loading of atmospheric organic aerosol particles over time scales of several days, but most studies have examined pure organic particles only. In this study, in order to probe the reactivity of organic species confined near the particle surface, the rates and products of the OH-initiated oxidation of pure squalane particles are compared to oxidation of thin coatings of squalane on ammonium sulfate particles. The squalane reaction rate constant shows a linear dependence on the organic surface area-to-volume ratio, with rate constants for coated particles up to 10 times larger than for pure particles. Changes in the carbon oxidation state and fraction of particulate carbon remaining show similar enhancements, implying that heterogeneous oxidation may exhibit a stronger effect on the loadings and properties of organic aerosol than previously estimated from laboratory studies. |
英文关键词 | heterogeneous oxidation morphology aerosol mass spectrometry chemical aging organic aerosol |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399762700039 |
WOS关键词 | MASS-SPECTROMETRY ; PARTICLE-PHASE ; HYDROXYL RADICALS ; RELATIVE-HUMIDITY ; FLOW REACTORS ; OH OXIDATION ; KINETICS ; STATE ; SECONDARY ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28695 |
专题 | 气候变化 |
作者单位 | 1.MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 2.Univ Colorado, Dept Chem & Biochem, Cooperat Inst Res Environm Sci, Campus Box 215, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Lim, C. Y.,Browne, E. C.,Sugrue, R. A.,et al. Rapid heterogeneous oxidation of organic coatings on submicron aerosols[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(6). |
APA | Lim, C. Y.,Browne, E. C.,Sugrue, R. A.,&Kroll, J. H..(2017).Rapid heterogeneous oxidation of organic coatings on submicron aerosols.GEOPHYSICAL RESEARCH LETTERS,44(6). |
MLA | Lim, C. Y.,et al."Rapid heterogeneous oxidation of organic coatings on submicron aerosols".GEOPHYSICAL RESEARCH LETTERS 44.6(2017). |
条目包含的文件 | 条目无相关文件。 |
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