Conveners
6.1 Nonequilibrium Plasma Applications II
- James Walsh (University of Liverpool)
Presentation materials
Nanosecond-pulsed discharges in liquids have gained attention in recent years. Non-thermal nature coupled with localized high pressures, energetic electrons and reactive species makes these type of discharges an attractive tool for production of materials with unusual properties. Here we present the recent results on characterization of nanosecond corona discharge ignited directly in liquid...
Atmospheric pressure plasma jet (APPJ) is gaining growing interest in a number of bio-applications. Among various APPJ sources, a dielectric barrier discharge (DBD) reactor has been considered as the most straightforward plasma system to generate APPJ, because one or more dielectric layers isolating metal electrodes can avoid abnormal increase of current during plasma generation. Several DBD...
The temperature of exhaust gases in diesel engines usually fluctuates in the range of 100~400 °С; unfortunately, the performance of hydrocarbon selective catalytic reduction (HC-SCR) that is the most common technology to remove nitrogen oxides (NOx) is not satisfactory at low-temperatures. The temperature window for the HC-SCR can be expanded to a wider range by the combination with...
Plasma treatment of water has been investigated extensively for the last decade in relation to a number of promising applications in biomedical, environmental, and agricultural fields as well as food processing. Plasma treated water typically has high oxidative properties and wide range of reactive species produced including ∙OH, ∙O, H2O2, NO3-, ONOO-. In this study we focus on DBD plasma in...
Plasma-assisted surface modification of silica supports and fully synthesized vanadium oxides was performed in a direct current hollow cathode discharge plasma sustained in
Cold atmospheric pressure plasma (CAP) assisted thermal catalysis has shown promise to enhance catalytic efficiency by a process called plasma-catalyst synergy (PCS). The overall goal of this work is to obtain mechanistic insights on surface phenomena in PCS. The system under investigation is partial oxidation of methane using a Ni supported catalyst assisted by an atmospheric pressure plasma...
A one-dimensional fluid plasma model is developed to study an ablating arc discharge using graphite electrodes in atmospheric pressure conditions. The plasma physics and chemistry are coupled with the plasma-wall interactions, e.g. sheath, electron emission, evaporation, and deposition. In the plasma model, chemical, thermal, and velocity nonequilibrium are accounted for and equilibrium...
