Plasma Catalyst-Integrated System For Ammonia Production From H2o And N-2 At Atmospheric Pressure

Plasma technology is considered a sustainable and clean technology for the conversion of naturally abundant compounds (i.e., water (H2O) and nitrogen gas (N-2)) into energy-abundant compounds (e.g., hydrogen gas (H-2), ammonia (NH3)) or chemical feed molecules (e.g., nitric oxide (NO)). Here, we report a plasma catalyst-integrated system for sustainable ammonia production, which can facilitate massive, localized ammonia production. This study demonstrates the single-step cogeneration of H-2 and nitric oxides (NOx) from H2O in the nitrogen discharge used for ammonia production, which proceeded via the catalytic reduction of NOx by H-2. The proposed plasma technique yields higher NO and H-2 concentrations than conventional plasma methods, which were used to obtain an ammonia concentration of similar to 0.84% with a selectivity of similar to 95% and a production rate of 120 mu mol/s. These promising results provide a breakthrough in the transition toward sustainable and environmentally friendly ammonia production.