Furthermore, due to some limitations with the NTP-alone technology in relation with the toxicity of some by-products [16], combination of plasma and heterogeneous catalysis was studied [7, 17]. Depending on the location of the catalysts, the catalysis is defined asinplasma catalysis or post-plasma catalysis. In the in-plasma catalysis configuration, the catalysts can be activated by the plasma. Many catalysts have been combined to NTP and have been tested for VOCs abatement.