Rate constant for the reaction of O with H2 at high temperature by resonance absorption measurements of O atoms

Quantum reactive scattering of O(3P)+H2 at collision energies up to 4.4 eV

“…Reaction rates and related quantities obtained using different experimental techniques have been reported. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] On the theory side, several sets of chemically accurate global potential energy surfaces (PESs) have been constructed 6,[24][25][26][27][28][29][30] and different aspects of the process have been investigated. 2,6, Particularly relevant to the present study are recent time-dependent and time-independent quantum mechanical (QM) 37,39 and quasi-classical trajectories (QCT) calculations [45][46][47][48][49] that have demonstrated good agreement with crossed molecular beam experiments 22,23,50 for temperatures ranging from thermal to about 3500 K.…”

Remaining uncertainties in the kinetic mechanism of hydrogen combustion

“…Their expression [47] can be safely extrapolated up to 3500 K, since it is in good agreement with the measurements of Natarajan and Roth [48] in the overlapping range from 1713 to 3532 K, of Davidson and Hanson [49] from 2120 to 2750 K, and of Javoy et al [50] from 2690 to 3360 K. Baulch et al [12] proposed a different new fit to improve agreement with low-temperature measurements. This fit is very close to the high-temperature measurements mentioned above.…”

A chemical kinetic study of the oxidation of silane by nitrous oxide, nitric oxide and oxygen

“…The shock tube used has been described in previous papers [9][10][11]. Briefly, the apparatus was a 78 mm internal diameter stainless-steel shock tube with a 5.5-m-long driven section and a 3.5-m-long driver section.…”

“…The system H 2 -N 2 O was described by the model of Mével et al [13]. Three changes were brought to this sub-set: (i) the rate coefficient for the O + H 2 = OH + H rate was that from [9], (ii) the reaction rate for the NO + N ? N 2 + O reaction was that from [14], (iii) the reaction N + OH = NO + H was added and taken from [8].…”

“…3-5, the uncertainties associated with the rate constants of these reactions can induce a poor accuracy of the simulated absorption profiles. However, the rate constants included in the present kinetic scheme for these reactions came from two relatively recent studies performed in our laboratory [9,11] and are known within 30% of uncertainty, assuring an accurate prediction of the O-atom concentrations. The reactions between Si and N 2 O result in a limited production of O atoms by N 2 O thermal decomposition.…”