Generation of an atmospheric pressure nonequilibrium diffuse discharge in air by means of a water electrode

Optical and electrical diagnostics of a non-equilibrium air plasma

“…Non-equilibrium atmospheric pressure plasmas are being used in a variety of material processing applications, biological and chemical decontamination of media [1][2][3], and surface modifications of polymers [4]. In the last decade, there has been considerable interest in finding methods for efficiently producing large volumes of such kinds of plasmas in air with a free electron density greater than 10 12 cm −3 , at gas temperatures below 2000 K [5][6][7].…”

“…Recently, we have been investigating a promising method whereby a stable, relatively large-volume glow discharge in air can be generated with low input power and at a relatively low gas temperature (below 2000 K) [5,8,9]. This method is based on the application of an AC (60 Hz) high voltage (<20 kV) to a pair of parallel electrodes separated by an air gap.…”

Ignition phase and steady-state structures of a non-thermal air plasma

“…However, when air is used as background gas, several serious difficulties are encountered, such as high gas temperature, high power density, and glow-to-arc transition. Recently, we have been investigating a promising method whereby a stable, relatively large volume glow discharge in air can be generated with low input power and at relatively low gas temperature (below 1500 K) [11,12]. This method is based on the application of an AC (60 Hz) high voltage (<20 kV) to a pair of parallel electrodes separated by an air gap (typical width of 1-3 cm).…”

“…This method is based on the application of an AC (60 Hz) high voltage (<20 kV) to a pair of parallel electrodes separated by an air gap (typical width of 1-3 cm). One of the electrodes is a metal disc while the other electrode is a static volume of tap water [11,12]. Metals and electrolytes have been used in the past as electrodes to produce gaseous discharges [13].…”