Invited Talk at 242nd ECS Meeting | October 9-13, 2022 | Atlanta, GA

Invited Talk at 242nd Electrochemical Society Meeting  

D05-0887 - (Invited, Digital Presentation) Eco-Friendly and Sustainable Ammonia Production with Atmospheric Pressure Rotating Gliding Arc Discharge

Abstract
Increasing fossil-free global energy demands have motivated the scientific community to investigate new clean and sustainable techniques that can meet global energy demands. The production of green and sustainable fuel, such as ammonia, from base molecules like water and nitrogen using electricity from renewable sources shows great potential to solve energy issues. Non-thermal atmospheric pressure plasma-based ammonia synthesis has great potential for carbon-free fertilizer production powered by renewable electricity. We developed an atmospheric pressure rotating gliding arc discharge reactor coupled with a catalyst for a higher ammonia production rate. Here we reported two-step ammonia production, including 1) facile production of NOx and hydrogen from nitrogen discharge in water, and 2) highly selective catalytic reduction of NOx to ammonia in the presence of hydrogen. The studied plasma technique offers ~0.84 % ammonia concentration with ~95 % selectivity and a 120 ┬Ámol/s production rate by integrating a catalytic reduction system with plasma. Compared with previous studies on ammonia synthesis from nitrogen, the remarkable ammonia yield (300–400-fold higher). These promising results provide a breakthrough in the transition toward sustainable and environmentally friendly ammonia production.

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