Atmospheric chemistry of E-CF3CH=CHCF3: Reaction kinetics of OH radicals and products of OH-initiated oxidation

被引：4
|
作者：
Qing, Feiyao [1 ,2 ]
Guo, Qin [1 ,2 ]
Chen, Liang [2 ]
Quan, Hengdao [1 ,2 ]
Mizukado, Junji [2 ]
机构：
[1] Beijing Inst Technol, Sch Chem & Chem Engn, 5 South Zhongguancun St, Beijing 100081, Peoples R China
[2] Natl Inst Adv Ind Sci & Technol, 1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2018年 / 706卷
关键词：
E-CF3CH=CHCF3; Global warming potential (GWP); Photochemical ozone creation potential (POCP); Degradation mechanism; OZONE CREATION POTENTIALS; GAS-PHASE REACTIONS; ORGANIC-COMPOUNDS; RATE CONSTANTS;
D O I：
10.1016/j.cplett.2018.05.023
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The reaction rate coefficients for the E-CF3CH=CHCF3 with OH were measured using the relative rate method: k (298 K) = (1.10 +/- 0.02)x10(-13) and k (253-328 K) = (4.80 +/- 0.92)x10(-13) exp [-(445 +/- 28)/T] cm(3) molecule(-1) s(-1). The atmospheric lifetime was 105 d, and the radiative efficiency (RE) was 0.171 Wm(-2) ppb(-1). The estimated POCPs were evaluated as 0.8 and 0.3 under North-west European and USA urban conditions, respectively. The global warming potential was estimated as 7 for the global 100-year time horizon. CF3OOOCF3, CF3C(O) H, COF2, CO, and CO2 were observed as carbon-containing products. (C) 2018 Published by Elsevier B.V.
引用
收藏
页码：93 / 98
页数：6
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