Atmospheric degradation mechanism of CF3OCF2H

被引：18
|
作者：
Inoue, Y
Kawasaki, M [1 ]
Wallington, TJ
Hurley, MD
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6068501, Japan
[2] Ford Motor Co, Ford Res Lab, Dearborn, MI 48121 USA
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 343卷 / 3-4期
关键词：
D O I：
10.1016/S0009-2614(01)00698-4
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：
Smog chamber/FTIR techniques were used to study the Cl atom initiated oxidation of CF3OCF2H in 700 Torr of N-2/O-2 at 295 +/- 2 K. Atmospheric oxidation of CF3OCF2H proceeds via the formation of CF3OCF2 radicals. The atmospheric fate of CF3OCF2 radicals is addition Of O-2 to give CF3OCF2O2 radicals. In the atmosphere CF3OCF2O, radicals are converted via COF2 and CF3OH into CO2 and HF. Relative rate techniques were used to measure k(Cl + CF3OCF2H) = (2.3 +/- 0.3) x 10(-17) cm(3) molecule(-1) s(-1). The results are discussed with respect to the atmospheric degradation and environmental impact of CF3OCF2H. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：296 / 302
页数：7
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