Application of plasma for efficient H2 production: A realism of copper electrode in single dielectric barrier discharge reactor

摘要: Effective transformation of moisture into hydrogen in argon containing 100% relative humidity employing dielectric barrier discharge cold plasma is reported. The coaxial reactor with a common outer Pyrex tube having an inner diameter 14 mm accompanied by central electrode combination employed for H2 generation through water splitting. Three different electrodes such as (double surfaces), copper (Cu), and stainless steel (SS) [single (SD) surface] are used separately, investigating the production efficiency variation gas residence time (GRT), electric field, working frequency, surface, gas-gap (GG). Optimal fields 3.5, 1.7, 1.3 kV mm−1 at 14.5 kHz required highest 45 s GRT Pyrex, SS, Cu reactors, respectively. utmost productions 2500 4500 ppmv observed 100 mm long, 4 mm GG 290 mm 2 mm SD respectively.Effective