Current projects B7 SFB 1316

Plasma in liquids

The dynamic of plasma electrolytic oxidation if monitored with Fourier-transform infrared spectroscopy (FTIR) at a metal surface in direct contact with the plasma-treated liquid. With this, the formation of oxygen species in the liquid and the oxide layer formation on a metal surface is analyzed. The oxidation state is compared with the plasma electrolytic oxidation and its modelling. The recovery of a copper oxide catalyst is triggered by igniting a plasma at the liquid-solid interface inside a modified electrochemical cell, usually used for CO2 conversion. The copper oxide catalysts have a nanocubic structure and a defined oxidation state. The influence of the produced plasma species on the catalytic surface is monitored with FTIR. In the field of biocatalysis, a remote plasma source above the liquid can be used to create valuable products out of enzymes. Therefore, the produced H2O2 inside the liquid can be used for catalytic reactions.