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DOI	10.5194/acp-22-6411-2022
	An experimental study of the reactivity of terpinolene and beta-caryophyllene with the nitrate radical
	Fouqueau, Axel; Cirtog, Manuela; Cazaunau, Mathieu; Pangui, Edouard; Doussin, Jean-Francois; Picquet-Varrault, Benedicte
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	6411
结束页码	6434
卷号	22 期号:10 页码:24
英文摘要	Biogenic volatile organic compounds (BVOCs) are intensely emitted by forests and crops into the atmosphere. They can rapidly react with the nitrate radical (NO3) during the nighttime to form a number of functionalized products. Among them, organic nitrates (ONs) have been shown to behave as reservoirs of reactive nitrogen and consequently influence the ozone budget and secondary organic aerosols (SOAs), which are known to have a direct and indirect effect on the radiative balance and thus on climate. Nevertheless, BVOC + NO3 reactions remain poorly understood. Thus, the primary purpose of this study is to furnish new kinetic and mechanistic data for one monoterpene (C10H16), terpinolene, and one sesquiterpene (C15H24), beta-caryophyllene, using simulation chamber experiments. These two compounds have been chosen in order to complete the few experimental data existing in the literature. Rate constants have been measured using both relative and absolute methods. They have been measured to be (6.0 +/- 3.8) x 10(-11) and (1.8 +/- 1.4) x10(-11) cm(3) molec.(-1) s(-1) for terpinolene and beta-caryophyllene respectively. Mechanistic studies have also been conducted in order to identify and quantify the main reaction products. Total organic nitrates and SOA yields have been determined. Both terpenes appear to be major ON precursors in both gas and particle phases with formation yields of 69 % for terpinolene and 79 % for beta-caryophyllene respectively. They are also major SOA precursors, with maximum SOA yields of around 60 % for terpinolene and 90 % for beta-caryophyllene. In order to support these observations, chemical analyses of the gas-phase products were performed at the molecular scale using a proton transfer reaction-time-of-flight-mass spectrometer (PTR-ToF-MS) and FTIR. Detected products allowed proposing chemical mechanisms and providing explanations through peroxy and alkoxy reaction pathways.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000797026000001
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/273823
作者单位	UDICE-French Research Universities; Universite Paris Cite; Universite Paris-Est-Creteil-Val-de-Marne (UPEC); Centre National de la Recherche Scientifique (CNRS); UDICE-French Research Universities; Universite Paris Cite; Universite Gustave-Eiffel; Universite Paris-Est-Creteil-Val-de-Marne (UPEC); Laboratoire National de Metrologie et d'Essais (LNE)
推荐引用方式 GB/T 7714	Fouqueau, Axel,Cirtog, Manuela,Cazaunau, Mathieu,et al. An experimental study of the reactivity of terpinolene and beta-caryophyllene with the nitrate radical[J],2022,22(10):24.
APA	Fouqueau, Axel,Cirtog, Manuela,Cazaunau, Mathieu,Pangui, Edouard,Doussin, Jean-Francois,&Picquet-Varrault, Benedicte.(2022).An experimental study of the reactivity of terpinolene and beta-caryophyllene with the nitrate radical.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(10),24.
MLA	Fouqueau, Axel,et al."An experimental study of the reactivity of terpinolene and beta-caryophyllene with the nitrate radical".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.10(2022):24.