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| DOI | 10.1016/j.atmosenv.2021.118344 |
| Gas-phase ozonolysis of trans-2-hexenal: Kinetics, products, mechanism and SOA formation | |
| Grira A.; Kalalian C.; Illmann J.N.; Patroescu-Klotz I.; El Dib G.; Coddeville P.; Canosa A.; Coeur C.; Wiesen P.; Roth E.; Chakir A.; Tomas A. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 253 |
| 英文摘要 | In this work, kinetics, product formation, chemical mechanism and SOA formation for the gas-phase reaction of trans-2-hexenal (T2H) with O3 are examined using four complementary experimental setups at 298 ± 2 K and atmospheric pressure. Product studies were conducted in two contrasted experimental conditions, with and without OH radical scavenger. The ozonolysis rate constant was determined in both static and dynamic reactors. An average reaction rate constant of (1.52 ± 0.19) × 10−18 cm3 molecule−1 s−1 was determined. Glyoxal and butanal were identified as main products with molar yields of 59 ± 15% and 36 ± 9%, respectively, in the presence of an OH scavenger. Slightly lower values were obtained in the absence of scavenger. Acetaldehyde, propanal and 2-hydroxybutanal were also identified and quantified. A reaction mechanism was proposed based on the observed products. SOA formation was observed with aerosol mass yields >13% for SOA masses of 400 μg m−3. This work demonstrates for the first time that 2-alkenals ozonolysis can be a source of SOA in the atmosphere. © 2021 Elsevier Ltd |
| 关键词 | AerosolAldehydeAtmosphereKineticsOzone |
| 语种 | 英语 |
| scopus关键词 | Aerosols; Aldehydes; Atmospheric chemistry; Atmospheric pressure; Enzyme kinetics; Free radicals; Gases; Kinetics; Phase interfaces; Rate constants; Chemical mechanism; Experimental conditions; Gas-phase ozonolysis; Gas-phase reactions; Kinetic product; OH radical; Product formation; Product studies; Radical scavengers; Ozone; acetaldehyde; butyraldehyde; glyoxal; hexobarbital; hydroxyl radical; oxygen; propionaldehyde; scavenger; aerosol composition; chemical composition; experimental study; molecular analysis; ozone depletion; reaction kinetics; scavenging (chemistry); Article; atmospheric pressure; Fourier transform infrared spectroscopy; gas; kinetics; laminar flow; mass fragmentography; molar tooth; nonhuman; ozonolysis; priority journal; rate constant; reaction analysis; secondary organic aerosol; ultraviolet spectroscopy |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248482 |
| 作者单位 | IMT Lille Douai, Institut Mines-Télécom, Univ. Lille, Centre for Energy and Environment, Lille, 59000, France; Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) -UMR 6251, Rennes, F-35000, France; Groupe de Spectrométrie Moléculaire et Atmosphérique (GSMA), UMR CNRS 7331, Université de Reims, Reims, F-51687, France; Institute for Atmospheric and Environmental Research, University of Wuppertal, Germany; Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) EA 4493, Université Littoral Côte d'Opale, Dunkerque, 59140, France |
| 推荐引用方式 GB/T 7714 | Grira A.,Kalalian C.,Illmann J.N.,et al. Gas-phase ozonolysis of trans-2-hexenal: Kinetics, products, mechanism and SOA formation[J],2021,253. |
| APA | Grira A..,Kalalian C..,Illmann J.N..,Patroescu-Klotz I..,El Dib G..,...&Tomas A..(2021).Gas-phase ozonolysis of trans-2-hexenal: Kinetics, products, mechanism and SOA formation.ATMOSPHERIC ENVIRONMENT,253. |
| MLA | Grira A.,et al."Gas-phase ozonolysis of trans-2-hexenal: Kinetics, products, mechanism and SOA formation".ATMOSPHERIC ENVIRONMENT 253(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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