气候变化领域集成服务门户(CCPortal): Atmospheric fate of two relevant unsaturated ketoethers: Kinetics, products and mechanisms for the reaction of hydroxyl radicals with (E)-4-methoxy-3-buten-2-one and (1E)-1-methoxy-2-methyl-1-penten-3-one

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DOI	10.5194/acp-20-8939-2020
	Atmospheric fate of two relevant unsaturated ketoethers: Kinetics, products and mechanisms for the reaction of hydroxyl radicals with (E)-4-methoxy-3-buten-2-one and (1E)-1-methoxy-2-methyl-1-penten-3-one
	Gastón Gibilisco R.; Barnes I.; Bejan I.; Wiesen P.
发表日期	2020
ISSN	16807316
起始页码	8939
结束页码	8951
卷号	20 期号:14
英文摘要	The kinetics of the gas phase reactions of hydroxyl radicals with two unsaturated ketoethers (UKEs) at(2983)K and 1 atm of synthetic air have been studied for the first time using the relative-rate technique in an environmental reaction chamber by in situ Fourier-transform infrared spectroscopy (FTIR). The rate coefficients obtained using propene and isobutene as reference compounds were (in units of 1010 cm3 molecule1 s1) as follows: kTMBO (OHC(E)-4-methoxy-3-buten-2-one)D(1:410:11) and kMMPO (OHC(1E)-1-methoxy-2-methyl-1-penten- 3-one)D(3:340:43). In addition, quantification of the main oxidation products in the presence of NOx has been performed, and degradation mechanisms for these reactions were developed. Methyl formate, methyl glyoxal, peroxyacetyl nitrate (PAN) and peroxypropionyl nitrate (PPN) were identified as main reaction products and quantified for both reactions. The results of the present study provide new insights regarding the contribution of these multifunctional volatile organic compounds (VOCs) in the generation of secondary organic aerosols (SOAs) and long-lived nitrogen containing compounds in the atmosphere. Atmospheric lifetimes and implications are discussed in light of the obtained results. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; atmospheric chemistry; degradation; gas phase reaction; hydroxyl radical; nitrogen oxides; oxidation; reaction kinetics; volatile organic compound
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152872
作者单位	Institute for Atmospheric and Environmental Research, Bergische Universität Wuppertal, Wuppertal, 42097, Germany; Faculty of Chemistry, Department of Chemistry, Alexandru Ioan Cuza, University of Iasi, 11 Carol i, Iasi, 700506, Romania; Integrated Centre of Environmental Science Studies in the North Eastern Region, Alexandru Ioan Cuza, University of Iasi, 11 Carol i, Iasi, 700506, Romania
推荐引用方式 GB/T 7714	Gastón Gibilisco R.,Barnes I.,Bejan I.,et al. Atmospheric fate of two relevant unsaturated ketoethers: Kinetics, products and mechanisms for the reaction of hydroxyl radicals with (E)-4-methoxy-3-buten-2-one and (1E)-1-methoxy-2-methyl-1-penten-3-one[J],2020,20(14).
APA	Gastón Gibilisco R.,Barnes I.,Bejan I.,&Wiesen P..(2020).Atmospheric fate of two relevant unsaturated ketoethers: Kinetics, products and mechanisms for the reaction of hydroxyl radicals with (E)-4-methoxy-3-buten-2-one and (1E)-1-methoxy-2-methyl-1-penten-3-one.Atmospheric Chemistry and Physics,20(14).
MLA	Gastón Gibilisco R.,et al."Atmospheric fate of two relevant unsaturated ketoethers: Kinetics, products and mechanisms for the reaction of hydroxyl radicals with (E)-4-methoxy-3-buten-2-one and (1E)-1-methoxy-2-methyl-1-penten-3-one".Atmospheric Chemistry and Physics 20.14(2020).