globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2019.117166
论文题名:
Atmospheric oxidation of C10~14 n-alkanes initiated by Cl atoms: Kinetics and mechanism
作者: Shi B.; Wang W.; Zhou L.; Sun Z.; Fan C.; Chen Y.; Zhang W.; Qiao Y.; Qiao Y.; Ge M.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 222
语种: 英语
英文关键词: Air pollution ; Atoms ; Chlorine ; Mass spectrometry ; Photooxidation ; Proton transfer ; Rate constants ; Atmospheric oxidation ; Cl atoms ; Kinetics and mechanism ; n-Alkanes ; Proton-transfer reaction mass spectrometries ; Relative rate method ; Smog chambers ; Tropospheric lifetime ; Paraffins ; alkane ; carbon 14 ; chlorine ; ethylbenzene ; alkane ; chemical reaction ; chlorine ; kinetics ; oxidation ; photooxidation ; smog ; atmosphere ; atom ; controlled study ; kinetic isotope effect ; kinetic parameters ; limit of detection ; photolysis ; photooxidation ; priority journal ; proton transfer reaction mass spectrometry ; rate constant ; reaction analysis ; room temperature ; smog ; ultraviolet radiation
学科: Cl atoms ; n-Alkane ; Photooxidation reaction ; Rate constants ; Smog chamber
中文摘要: The Cl-initiated photo-oxidation reactions of n-alkanes: C10~C14, were investigated by using Proton-Transfer-Reaction Mass Spectrometry in the smog chamber, and the present work provided the kinetic parameters of the reactions of Cl atoms with C11~14 n-alkanes for the first time. The rate constants (in units of cm3molecule−1s−1) were obtained using relative rate method with trans-2-butene, m-xylene and ethylbenzene as references at (298 ± 1)K and 760 Torr were k(n-decane)=(4.82 ± 0.32) × 10−10, k(n-undecane)=(5.02 ± 0.33) × 10−10, k(n-dodecane)=(5.12 ± 0.29) × 10−10, k(n-tridecane)=(5.30 ± 0.30) × 10−10, k(n-tetradecane)=(5.68 ± 0.34) × 10−10, respectively. The measured rate constants have also been used to calculate tropospheric lifetimes of these compounds (C10, C11, C12, C13, C14), which were 11.5, 11.1, 10.9 10.5 and 9.8 h for each n-alkane. In addition, the gas-phase photooxidation products of the reactions were also measured. Based on the obtained results, the reaction mechanisms of Cl atoms with these five alkanes were proposed. © 2019 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161069
Appears in Collections:气候变化与战略

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作者单位: State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; College of Chemistry and Material Science, Hebei Normal University, Road East of 2nd Ring South, Shijiazhuang, 050024, China; National Engineering Research Center for Flue Gas Desulfurization, Department of Environmental Science and Engineering, Sichuan University, Chengdu, 610065, China

Recommended Citation:
Shi B.,Wang W.,Zhou L.,et al. Atmospheric oxidation of C10~14 n-alkanes initiated by Cl atoms: Kinetics and mechanism[J]. Atmospheric Environment,2020-01-01,222
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