Plasmas

In this work we undertake a joint modelling and experimental investigation to study the impact of N₂ on the overall CO₂ plasma conversion. We perform our simulations solving a Boltzmann-chemistry 0D self-consistent kinetic model with the LoKI (LisbOn Kinetics) tool [1] and we compare our results with experimental data measured in low-pressure DC glow discharges.

The admixture of N₂ has a beneficial impact on CO₂ decomposition [2]. Several reasons can be assigned to it and will be discussed at the conference. Understanding the impact of the different processes on the overall kinetics, along with the validation against experimental data, will contribute to further develop the existing models [2,3] and to better control and enhance CO₂ conversion.

*This work was partially supported by the European Union's Horizon 2020 research and innovation programme under grant agreement MSCA ITN 813393, and by Portuguese FCT-Fundação para a Ciência e a Tecnologia, under projects UIDB/50010/2020 and UIDP/50010/2020.

[1] A. Tejero-del-Caz et al, Plasma Sources Sci. Technol. 28 (2019) 073001 [https://nprime.tecnico.ulisboa.pt/loki]

[2] L Terraz et al, J. Phys. D: Appl. Phys. 53 (2020) 094002

[3] A F Silva et al, Plasma Sources Sci. Technol. 29 125020 (2020)