Mechanical Engineering Commons^™

Measurement Of The Rate Of Hydrogen Peroxide Thermal Decomposition In A Shock Tube Using Quantum Cascade Laser Absorption Near 7.7 Μm, M. B. Sajid, Et. Es-Sebbar, T. Javed, C. Fittschen, A. Farooq

Dr. Et-touhami Es-sebbar

Hydrogen peroxide (H2O2) is formed during hydrocarbon combustion and controls the system reactivity under intermediate temperature conditions. Here, we measured the rate of hydrogen peroxide decomposition behind reflected shock waves using midinfrared absorption of H2O2 near 7.7 µm. We performed the experiments in diluted H2O2/Ar mixtures between 930 and 1235 K and at three different pressures (1, 2, and 10 atm). Under these conditions, the decay of hydrogen peroxide is sensitive only to the decomposition reaction rate, H2O2 + M → 2OH + M (k1). The second-order rate coefficient at low pressures (1 and 2 atm) did not exhibit any …