Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.202300584
Keywords
electrocatalysis; iron; nitrite reduction reaction; pinewood-derived carbon
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This study presents a highly efficient Fe nanoparticle-decorated pinewood-derived carbon electrocatalyst for the conversion of NO2- to NH3. The catalyst exhibits impressive NH3 yield, high Faradic efficiency, and robust stability under ambient conditions.
Electrochemical nitrite (NO2-) reduction reaction (NO2-RR) presents a sustainable approach for the electrochemical synthesis of ammonia (NH3), concurrently facilitating the removal of NO2- contaminants. Developing NO2-RR electrocatalysts with high NH3 selectivity and satisfactory NH3 yield poses a significant challenge. Herein, we present Fe nanoparticles decorated pinewood-derived carbon (Fe/PC) as a highly proficient electrocatalyst for the conversion of NO2- to NH3. The well-designed Fe/PC electrocatalyst achieves an impressive NH3 yield of 21924.6 mu g h-1 cm-2 and a high Faradic efficiency of 91.5 % under ambient conditions. Notably, the Fe/PC catalyst exhibits robust stability in both prolonged electrolysis and cyclic electrolysis assessments. Fe nanoparticles decorated pinewood-derived carbon facilitates the ambient electrosynthesis of NH3 via efficient NO2- reduction, achieving a remarkably large NH3 yield of 21924.6 mu g h-1 cm-2 at -0.8 V and a high FE of 91.5 % at -0.5 V in 0.1 M NaOH with 0.1 M NO2-.image
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