Coupling denitrification and ammonia synthesis via selective electrochemical reduction of nitric oxide over Fe₂O₃ nanorods

Abstract

Direct electrochemical conversion of nitric oxide (NO) into ammonia (NH3) holds great promise for highly value-added utilization of industrial gaseous waste and simultaneously mitigating the human-caused imbalance of the global...

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis

“…The pursuit for lower-cost alternatives remains a difficult but rewarding task. Catalysts based on non-noble metals (Bi [32,34], Nb-SA/BNC [33], Fe2O3 [35], Cu-Ti [345], NiO [346], CoSe2@CNT [347], FeNC [348], etc.) have also been studied by our group and others because of their lower costs and high catalytic activity.…”

“…Indeed, the electrochemical nitrogen reduction reaction (NRR) is so difficult that it has inspired the development of nitrate reduction reaction (NO3RR) and nitric oxide reduction reactions (NORR) to produce NH3 [24]. The use of the more reactive but harmful NO3 − , NO2 − , NO, etc., as precursors can contribute to higher conversion efficiencies and is expected to reduce related environmental pollution [25][26][27][28][29][30][31][32][33][34][35]. Furthermore, as shown in Fig.…”

Amorphous Boron Carbide on Titanium Dioxide Nanobelt Arrays for High‐Efficiency Electrocatalytic NO Reduction to NH3

“…Selective catalytic reduction (requiring a continuous supply of strong reductants) is the most established post‐combustion method for NO abatement, but it suffers from low sustainability due to high operational costs/potential secondary pollution [12] . Ambient electrochemical NO reduction, powered by renewable electricity, has emerged as an amazingly sustainable route for NO removal with various products being obtained simultaneously [13–25] . Among which NH 3 is an essential commodity for supporting the global population as well as modern industries [26, 27] .…”

Preparation and characterization of α-Fe2O3/Fe3O4 heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate

“…At present, the most familiar nanoparticles are composed of ferric oxides, such as magnetite (Fe 3 O 4 ) and hematite (Fe 2 O 3 ). Fe 2 O 3 is low cost, simple to produce, environment friendly, good catalytic properties, and its chemical properties are very stable [16][17][18]. However, the saturation magnetization of hematite is very small, resulting that it was difficult for recovery, separation, and so on, which limits its applications at many areas.…”