Kinetics of the reaction of HO2 with ozone

Article abstract of DOI:10.1063/1.440343

Rate constants were measured for the reaction HO2 + O3 -> OH + 202(k₁) using a discharge-flow system with laser magnetic resonance detection of both HO2 and OH. k₁ was determined directly from the first order decay of HO2 in excess O3 when C2F3Cl was added to scavenge the OH product and prevent interference from the faster reaction OH + O3 -> HO2 + O2(k₂).The ratio k₂/k₁ was independently determined from the steady-state / ratio obtained without C2F3Cl.Results from the scavenger method are given by k₁ = (1.4+/-0.4)x10^-14 exp <-(580+/-100)/T> cm³s^-1 for 245 K < T < 365K.Results of the ratio measurements are in good agreement with these data when combined with a directly measured value of k₂ = (6.5 +/- 1.0)x10^-14 cm³s^-1 at 300 K.These measurements are compared with other studies and some implications for stratospheric ozone chemistry are discussed.

Full text of DOI:10.1063/1.440343

Kinetics of the reaction of HO2 with ozone
Mark S. Zahniser and Carleton J. Howard
Citation: The Journal of Chemical Physics 73, 1620 (1980); doi: 10.1063/1.440343
View online: http://dx.doi.org/10.1063/1.440343
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/73/4?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
30.209.6.50 On: Sat, 20 Dec 2014 11:04:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
30.209.6.50 On: Sat, 20 Dec 2014 11:04:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
30.209.6.50 On: Sat, 20 Dec 2014 11:04:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
30.209.6.50 On: Sat, 20 Dec 2014 11:04:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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