Kinetics of Energetic O− Ions in the Discharge Plasmas of Water Vapor and H2O-Containing Mixtures
- Авторлар: Ponomarev A.A.1,2, Aleksandrov N.L.1
-
Мекемелер:
- Moscow Institute of Physics and Technology
- Keldysh Research Center
- Шығарылым: Том 44, № 10 (2018)
- Беттер: 986-995
- Бөлім: Low-Temperature Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/186968
- DOI: https://doi.org/10.1134/S1063780X18100100
- ID: 186968
Дәйексөз келтіру
Аннотация
The process of relaxation of energetic O– ions formed via dissociative attachment of electrons to molecules in the discharge plasmas of water vapor and H2O: O2 mixtures in a strong electric field is studied by the Monte Carlo method. The probability of energetic ions being involved in threshold ion–molecular processes is calculated. It is shown that several percent of energetic O– ions formed via electron attachment to H2O molecules in the course of plasma thermalization transform into OH– ions via charge exchange or are destroyed with the formation of free electrons. The probabilities of charge exchange of O– ions and electron detachment from them increase significantly (up to 90%) when O– ions are formed via electron attachment to O2 molecules in water vapor with an oxygen additive. This effect decreases with increasing oxygen fraction in the mixture but remains appreciable even when the fraction of H2O molecules in the H2O: O2 mixture does not exceed several percent.
Авторлар туралы
A. Ponomarev
Moscow Institute of Physics and Technology; Keldysh Research Center
Email: nick_aleksandrov@mail.ru
Ресей, Dolgoprudny, Moscow oblast, 141700; Moscow, 125438
N. Aleksandrov
Moscow Institute of Physics and Technology
Хат алмасуға жауапты Автор.
Email: nick_aleksandrov@mail.ru
Ресей, Dolgoprudny, Moscow oblast, 141700
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