Microplasmas inside confined cavities, pores and capillaries of dielectric
materials present a great potential for various environmental applications.
The paper briefly introduces the physical properties of the AC microplasmas
generated by the discharges inside porous ceramics foams and focuses on their
chemical effects in various mixtures of nitrogen and oxygen. Ozone formation
as an example tool to evaluate the chemical potential of the microplasmas was
investigated as a function of discharge power, gas mixture composition and
total gas flow rate.