Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Shock Tube Studies of the H2–O2–CO Reaction by Atomic Resonance Absorption Spectroscopy
Tohru Koike
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1991 Volume 64 Issue 6 Pages 1726-1730


The atomic resonance absorptions of O- and H-atoms in the reaction of shock-heated H2/O2/CO/Ar(1/1/1/97 and 0.2/1/1/97.8) mixtures were observed over a relatively low temperature range from 1000 to 1400 K. The induction times, determined from the absorptions, were investigated by means of computer modeling which included a sensitivity test. The rate constant for the important initiation reaction, CO+O2=CO2+O, was evaluated to be k13=1013.1±0.6exp (−196.9±14.9kJ⁄RT) cm3 mol−1 s−1, which may supplement the lack of reported rate constants in the low-temperature region.

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