Mechanisms of multielectron reactions at the plasma/water interface: Interfacial catalysis, RONS, nitrogen fixation, and plasma activated water

There are three major multi-electron reactions in nature: nitrogen fixation by bacteria, water oxidation photosynthesis, and oxygen reduction during respiration. Here we found that a cold atmospheric pressure He-plasma jet (CAPPJ) can oxidize N2 to HNO3 HNO2 at low temperature the plasma-air/water interface. Redox induced plasma occur not only plasma/air plasma/water interfaces, but also volume of aqueous phase. Analysis images which displayed presence pH indicators phase showed redox acid formation interface products electrochemical slowly diffuse into bulk solution. Acidification an solution CAPPJ treatment correlates with increase HNOx concentration is unstable be oxidized plasma-generated H2O2 or ozone. The mechanisms interfacial multielectron discussed evaluated. Plasma-activated used medicine, food industry, agriculture for disinfection, sterilization, decontamination. Plasma-induced production room industry compounds, replacing expensive old technology processes.