Shock tube studies of the H2-O2 reaction by atomic resonance absorption spectroscopy

Abstract

The increases of O-atoms and of H-atoms in the reaction between H2 and O2 in shock waves were measured over the temperature range of 1000-1400 K by atomic resonance absorption spectroscopy. The induction times of the absorptions by these two species were evaluated and computer modeling was carried out to reproduce these values. As one of the initiations of the H2-O2 reaction, H2+02=H+H02 was found to play an important role in the progress of the reaction. The rate constant of this reaction was evaluated as: K=4.1X1016 exp(-285K]/RT)cm8-mol-1-s-1.