Production of ammonia form air using an electrocatalytic reduction Basheer Chanbasha King Fahd University, Saudi Arabia In ambient circumstances, electrocatalytic N 2 reduction to NH 3 is an appealing approach for artificial N 2 fixation. Electrochemical nitrogen reduction reactions can offer a useful source of ammonia, but the process is limited by the low production rate and poor conversion efficiency at the cathodic electrode. Here, we have designed a unique iron oxide for the electro-reduction of nitrogen to ammonia in a neutral electrolyte and mild conditions, achieving excellent faradic efficiency and a high ammonia yield rate of 35.6 g h1 mg1 cat, at1.0 V. The C-Fe 2 O 3 on graphite felt (Fe 2 O 3- C@GF) was synthesized hydrothermally under a nitrogen environment for the electrochemical reduction of nitrogen. Graphite is used as a substrate due to its supermicropores, which function as a more active site for Fe 2 O 3 to be exposed. Due to the supermicropore nature of the graphite felt substrate, more active sites of C-Fe 2 O 3 could be exposed, increasing electron transport and creating open pathways for rapid H 2 release. These findings can support the development of Fe-based electrocatalysts for NRR at atmospheric pressure. References 1. The author acknowledges the funding support provided by the Deanship of Research Oversight and Coordination at the King Fahd University of Petroleum and Minerals through project no ER221003.
P03
© The Author(s), 2023
Made with FlippingBook Learn more on our blog