Temperature and pressure effects on formation and decomposition of phenylvinylperoxy radicals in the C6H5C2H 2 + O2 reaction

J. Park*, Ming-Chang Lin

*Corresponding author for this work

研究成果: Conference article同行評審

6 引文 斯高帕斯(Scopus)

摘要

The effects of temperature and pressure on the formation and decomposition of C6H5C2H2O2 in the C6H5C2H2 + O2 reaction have been investigated at temperatures from 298 to 378 K by directly monitoring the C6H5C2H2O2 radical in the visible region by cavity ringdown spectrometry (CRDS). The rate constant for the C6H5C2H2 + O2 association and that for fragmentation of C6H5C 2H2O2 were found to be k1 (C 6H5C2H2 + O2 → C6H5C2H2O2) = (3.20 ± 1.19) × 1011 exp(+760/T) cm3 mol -1 s-1 and k2 (C6H5C 2H2 O2 → C6H5CHO + HCO) = (1.68 ± 0.13) × 104 s-1, respectively. Additional kinetic measurements by pulsed laser photolysis/mass spectrometry show that C6H5CHO was produced in the C6H 5C2H2 + O2 reaction as predicted and the formation of C6H5CHO from the decomposition of C 6H5C2H2O2 is temperature-independent, consistent with the CRDS experimental data.

原文English
頁(從 - 到)305-310
頁數6
期刊Proceedings of the Combustion Institute
32 I
發行號1
DOIs
出版狀態Published - 1 一月 2009
事件32nd International Symposium on Combustion - Montreal, QC, Canada
持續時間: 3 八月 20088 八月 2008

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