ELECTRIC-FIELD EFFECTS ON DECOMPOSITION OF DILUTE CONCENTRATIONS OF CHCL3 AND CCL4 IN ELECTRON-BEAM GENERATED AIR PLASMA

Citation
M. Koch et al., ELECTRIC-FIELD EFFECTS ON DECOMPOSITION OF DILUTE CONCENTRATIONS OF CHCL3 AND CCL4 IN ELECTRON-BEAM GENERATED AIR PLASMA, Physics letters. A, 184(1), 1993, pp. 109-113
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ISSN journal
0375-9601
Volume
184
Issue
1
Year of publication
1993
Pages
109 - 113
Database
ISI
SICI code
0375-9601(1993)184:1<109:EEODOD>2.0.ZU;2-3
Abstract
Effects of an electric field on plasma-chemical decomposition of dilut e concentrations (of order 300 ppm) of CHCl3 and CCl4 in dry and wet ( almost-equal-to 10% relative humidity) air streams were studied. The a tmospheric pressure, non-equilibrium plasma was produced by an electro n beam. The function of the electric field is to control the average e lectron energy. For CHCl3, application of an electric field tended to increase decomposition markedly, with larger increases in wet air rela tive to dry air. For CCl4, it tended to slightly increase decompositio n in dry air while decreasing decomposition in wet air. The results ar e qualitatively consistent with the primary decomposition mechanism of dissociative electron attachment to CHCl3 and CCl4 in competition wit h non-dissociative electron attachment to 02.