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

页码：93 / 98

页数：6

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