Propagation of a Dielectric Barrier Discharge in a Multichannel Mixing Chip Microreactor

An atmospheric-pressure dielectric barrier discharge was generated inside a T-type mixing multichannel chip microreactor in argon, at peak-to-peak voltages of 3.0 kV, and a frequency of 10 kHz. Time-resolved imaging and current-voltage measurements revealed temporal and spatial variation of the discharge, and the appearance of discharge nonuniformities that are considered to arise due to small pressure differences caused by the microchannel geometry, and the mixing of gas flows in regions where the channels connect.