Ammonia decomposition to clean hydrogen using non-thermal atmospheric-pressure plasma

Review of the Decomposition of Ammonia to Generate Hydrogen

“…In a similar way, the work of Inoue et al 92 showed that complete conversion could be achieved at low temperatures with atmospheric pulsed plasma in the absence of catalysts by controlling the reaction conditions and dilution of ammonia with argon. However, the use of a stream of pure ammonia and DBD plasma resulted in lower conversions (19%), according to Goto et al 93 As shown by Akiyama et al, 94 the type of electrodes used to produce the plasma does not interfere significantly in the decomposition of ammonia, whereas the applied power and the residence time of the gas shows a strong dependence on the conversion rate. Moreover, applying plasma technology at higher temperatures and in the presence of a low-cost catalyst results in a complete conversion at low temperatures.…”

Plasma-driven catalysis: green ammonia synthesis with intermittent electricity

“…Next to Ru-catalysts, other supported metal catalysts were tested for plasma-catalytic ammonia synthesis (and ammonia decomposition). 131,152,156,157,159,168,276,277,279,280,[287][288][289][290][291][292] In most cases, supported Co, Ni, and Rh catalysts are found to be most active among the tested catalysts. 131,156,159,276,277 Such metals have less ammonia desorption limitations than the classical Fe and Ru catalysts for thermal-catalytic ammonia synthesis.…”

“…Various authors have researched either ammonia synthesis, or ammonia decomposition, with various electrode materials. 150,153,174,266,280 Iwamoto et al 153 attributed a trend in ammonia synthesis rate for wool-like electrodes to the binding strength of N ads on the metal surface. On the other hand, Yin et al 174 reported that the ammonia yield increases with increasing electron work function of the electrode material.…”

Feasibility Analysis of Integrated Power-to-Ammonia Processes Employing Alkaline Electrolysis and Air Separation

“…However, more research is needed before the large-scale commercial use of ammonia as a hydrogen carrier in the transportation sector. Most ammonia is synthesized using the Haber-Bosch method (Akiyama et al, 2018), which is expensive because the synthetic reaction is conducted under severe conditions. erefore, it is necessary to evaluate the ammonia production cost through an economic analysis of the power-to-ammonia (P2A) process.…”