Energy Intensified Nitrogen Fixation Through Fast Modulated Gas Discharge from Pyramid-shaped Micro-electrode.

Lamichhane, Pradeep; Pourali, Nima; Rebrov, Evgeny V.; Hessel, Volker

Plasma-assisted nitrogen fixation has emerged as a promising alternative to conventional nitrogen fixation methods. In this study, we investigate the feasibility of plasma-assisted nitrogen fixation using an AC-driven dielectric barrier discharge generated from the micro-tips of a specially designed fast-modulated pyramid-shaped electrode. The obtained result is compared with the conventional flat electrode. Our results demonstrate that pyramid-shaped micro-tip electrodes can excite more nitrogen molecules than flat electrodes. Thus, pyramid electrodes have 58% more nitrogen oxides yield efficiency at 32% less energy cost. The highest nitrogen fixation is attained at 60% to 70% of oxygen concentration in nitrogen-feeding gas. These findings suggest that discharge through microtip is a promising and viable technology that could play a significant role in reducing the energy cost of the plasma-assisted nitrogen fixation method to meet the growing demand for sustainable nitrogen-based fertilizers.

NITROGEN fixation; ELECTRIC discharges; ENERGY industries; NITROGEN plasmas; NITROGEN oxides; SOLAR air conditioning; GLOW discharges

Plasma Chemistry & Plasma Processing, 2024, Vol 44, Issue 3, p1369

0272-4324

Academic Journal

10.1007/s11090-023-10376-1