High temperature gas phase reaction of SnOg with O-2

摘要

The gas phase reaction of SnOg with O-2 was studied behind reflected shock waves at temperatures between 1700 and 2300 K and pressures around 100 kPa by applying atomic resonance absorption spectroscopy for time-resolved measurements of O atoms at 130.6 nm. The source of gas phase SnOg were SnO nanoparticles which rapidly evaporate behind the reflected shock wave in a few microseconds. For the reaction SnOg + O-2 --> SnO2,g + O a rate coefficient of k(1) = 10(14.78+/-0.19) exp(-23 530 +/- 840 K/T) cm(3) mol(-1) s(-1) was determined for the temperature range of the present experiments. [References: 9]