Kinetics of the reaction of OH radicals with acetylene in 25–8000 torr of air at 296 K

作者：Michael A. Sørensen, Edward W. Kaiser, Michael D. Hurley, Timothy J. Wallington, Ole John Nielsen · 发表于：International Journal of Chemical Kinetics · 年份：2003 · DOI：10.1002/kin.10119 · 被引用次数：55 · 研究领域：Atmospheric chemistry and aerosols、Advanced Combustion Engine Technologies、Catalysis and Oxidation Reactions

Abstract Relative rate techniques were used to study the kinetics of the reaction of OH radicals with acetylene at 296 K in 25–8000 Torr of air, N2/O2, or O2 diluent. Results obtained at total pressures of 25–750 Torr were in good agreement with the literature data. At pressures >3000 Torr, our results were substantially (∼35%) lower than that reported previously. The kinetic data obtained over the pressure range 25–8000 Torr are well described (within 15%) by the Troe expression using ko = (2.92 ± 0.55) × 10−30 cm6 molecule−2 s−1, k∞ = (9.69 ± 0.30) × 10−13 cm3 molecule−1 s−1, and Fc = 0.60. At 760 Torr total pressure, this expression gives k = 8.49 × 10−13 cm molecule−1 s−1. © 2003 Wiley Periodicals, Inc. Int J Chem Kinet 35: 191–197, 2003