RATE COEFFICIENTS FOR THE REACTION OF OH WITH HONO BETWEEN 298-K AND 373-K

被引：33

作者：

BURKHOLDER, JB ^{[1
]}

MELLOUKI, A ^{[1
]}

TALUKDAR, R ^{[1
]}

RAVISHANKARA, AR ^{[1
]}

机构：

[1] UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309

来源：

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS | 1992年 / 24卷 / 08期

关键词：

D O I：

10.1002/kin.550240805

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：

Rate coefficients, k1, for the reaction OH + HONO --> H2O + NO2, have been measured over the temperature range 298 to 373 K. The OH radicals were produced by 266 nm laser photolysis of O3 in the presence of a large excess of H2O vapor. The temporal profiles of OH were measured under pseudo-first-order conditions, in an excess of HONO, using time resolved laser induced fluorescence. The measured rate coefficient exhibits a slight negative temperature dependence, with k1 = (2.8 +/- 1.3) X 10(-12) exp((260 +/- 140)/T) cm3 molecule-1 s-1. The measured values of k1 are compared with previous determinations and the atmospheric implications of our findings are discussed.

引用

页码：711 / 725

页数：15

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