DOI: 10.1016/j.atmosenv.2018.02.005
Scopus记录号: 2-s2.0-85041914643
论文题名: Atmospheric chemistry of cyc-CF2CF2CF2CH=CH–: Kinetics, products, and mechanism of gas-phase reaction with OH radicals, and atmospheric implications
作者: Guo Q ; , Zhang N ; , Uchimaru T ; , Chen L ; , Quan H ; , Mizukado J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 179 起始页码: 69
结束页码: 76
语种: 英语
英文关键词: Atmospheric chemistry
; Cyc-CF2CF2CF2CH=CH–
; Global warming potential
; Photochemical ozone creation potential
; Tropospheric lifetime
Scopus关键词: Carbon
; Chemical reactions
; Free radicals
; Gases
; Global warming
; Ozone
; Phase interfaces
; Rate constants
; Reaction kinetics
; Arrhenius expressions
; Atmospheric implications
; Carbon-containing products
; Global warming potential
; Photochemical ozone creation potentials
; Radiative efficiency
; Relative rate method
; Tropospheric lifetime
; Atmospheric chemistry
; carbon
; carbon dioxide
; carbon monoxide
; chlorofluorocarbon
; hydroxyl radical
; ozone
; atmospheric chemistry
; carbon
; chemical reaction
; gas phase reaction
; global warming
; hydroxyl radical
; photochemistry
; reaction kinetics
; reaction rate
; troposphere
; Article
; atmosphere
; atmospheric dispersion
; calculation
; chemical reaction
; gas
; greenhouse effect
; infrared radiation
; molecule
; oxidation kinetics
; phase transition
; photochemistry
; priority journal
; radiation absorption
; radiative forcing
; radical reaction
; rate constant
; troposphere
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The rate constants for the gas-phase reactions of cyc-CF2CF2CF2CH=CH– with OH radicals were determined by a relative rate method between 253 and 328 K. The rate constant k1 at 298 K was measured to be (1.08 ± 0.04) × 10−13 cm3 molecule−1 s−1, and the Arrhenius expression was k1 = (3.72 ± 0.14) × 10−13 exp [(−370 ± 12)/T]. The atmospheric lifetime of cyc-CF2CF2CF2CH=CH– was calculated to be 107 d. The products and mechanism for the reaction of cyc-CF2CF2CF2CH=CH– with OH radicals were also investigated. CO, CO2, and COF2 were identified as the main carbon-containing products following the OH-initiated reaction. Moreover, the radiative efficiency (RE) was determined to be 0.143 W m−2 ppb−1, and the global warming potentials (GWPs) for 20, 100, and 500 yr were 54, 15, and 4, respectively. The photochemical ozone creation potential of the title compound was estimated to be 1.3. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82973
Appears in Collections: 气候变化事实与影响
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作者单位: School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhonguancun Street, Haidian District, Beijing, China; National Institute of Advanced Industrial Science and Technology (AIST), 1−1−1 Higashi, Tsukuba, Ibaraki, Japan
Recommended Citation:
Guo Q,, Zhang N,, Uchimaru T,et al. Atmospheric chemistry of cyc-CF2CF2CF2CH=CH–: Kinetics, products, and mechanism of gas-phase reaction with OH radicals, and atmospheric implications[J]. Atmospheric Environment,2018-01-01,179