Kinetics and mechanisms of the gas-phase reactions of OH radicals with three C15 alkanes

被引：18

作者：

Shi, Bo ^{[1
,2
]}

Wang, Weigang ^{[1
,2
]}

Zhou, Li ^{[1
,2
,4
]}

Li, Junling ^{[1
,2
]}

Wang, Jing ^{[1
,2
]}

Chen, Yan ^{[1
,2
]}

Zhang, Wenyu ^{[1
,2
]}

Ge, Maofa ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, State Key Lab Struct Chem Unstable & Stable Speci, CAS Res Educ Ctr Excellence Mol Sci, BNLMS,Inst Chem, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China

[4] CNRS, Inst Combust Aerotherm React & Environm OSUC, F-45071 Orleans 02, France

来源：

ATMOSPHERIC ENVIRONMENT | 2019年 / 207卷

基金：

中国国家自然科学基金;

关键词：

OH radicals; Reaction rate constants; Photooxidation reaction; Smog chamber; SECONDARY ORGANIC AEROSOL; AIR-POLLUTION SOURCES; RATE CONSTANTS; MOLECULAR-STRUCTURE; N-ALKANES; EMISSIONS; OXIDATION; DIESEL; CHEMISTRY; CHAMBER;

D O I：

10.1016/j.atmosenv.2019.03.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The reaction constants and products for the reactions of OH radicals with different C-15 alkanes, were determined by using Proton-Transfer-Reaction Mass Spectrum (PTR-MS) in the smog chamber. Rate coefficients (in units of 10(-11) cm(3) molecule(-1) s(-1)) k(1(pentadecane)) = 1.72 +/- 0.1 8,k(2(2,6,10-trimethyldodecane)) = 1.90 +/- 0.20, 1c3(nonylcyclohexane) = 2.09 +/- 0.22 were first obtained by the relative rate method using toluene and m-xylene as reference compounds at (298 +/- 1)K and atmospheric pressure. In addition, the products of these reactions were measured by PTR-MS simultaneously. The results show that the major gas phase products observed in the OH radicals reactions were aldehydes and ketones for C-15 alkanes. The possible reaction mechanisms were speculated and the atmospheric implications were also discussed.

引用

页码：75 / 81

页数：7

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