Merged electron-ion beam experiments. V. Dissociative recombination of OH⁺, H₂O⁺, H₃O⁺and D₃O⁺

HERSCHELMEASUREMENTS OF MOLECULAR OXYGEN IN ORION

“…The reaction rate for all three of these measurements is in reasonable agreement in magnitude and temperature dependence, with a large thermal rate coefficient α 3 × 10 −6 cm 3 s −1 at 50 K, and a temperature dependence ∝ T −0.8 . These results are consistent with the earlier results by Mul et al (1983) obtained using a different technique. The branching ratio has been a subject of some uncertainty, the papers cited above all put the fraction of the recombinations that result in production of OH in the range 0.5 f(OH) 0.7.…”

Time-and Space-resolved Optical Diagnostics for Discharge Plasmas Separately Formed in Aqueous Solution

“…20 In the present m-ASS plasmas, as well as the ASG plasma, probable pathways for ·OH generation are described as the collisions between free electrons and H2O + or H3O + ions. [21][22][23] Therefore, it is natural to consider that ·H and ·OH should generate more effectively in the -plasma, than in the +plasma due to the high electron number density.…”

“…The dissociation cross section of H2O + and H3O + for the collision with electrons drastically increases as the kinetic energy of the colliding electron decreases. [21][22][23] For example, when the electron energy decreases from 1 to 0.5 eV, the dissociation cross section increases from about 7 × 10 -17 cm 2 to 3 × 10 -16 cm -2 . 21 As shown in Fig.…”

“…[21][22][23] For example, when the electron energy decreases from 1 to 0.5 eV, the dissociation cross section increases from about 7 × 10 -17 cm 2 to 3 × 10 -16 cm -2 . 21 As shown in Fig. 5, Tb, representing the lower limit of the electron temperature, for the +plasma gradually decreases after the delay time of 1.5 μs.…”

Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor

“…The basic electron production and loss processes are as follows ((5.1)-(5.3), [26,27]; (5.4), [27,28]): , are less by a factor of 5-600 according to [29] so they were not taken into account. The role of the excited radical CH* is important under conditions of an external stimulating source such as laser impact [30].…”