Effect of additives on the electrocatalytic reduction of Fe(II)EDTA complexed NO absorbent

selectivity reaching 87.91% and 82.12%, respectively, and corresponding Faraday efficiencies is 76.74% and 78.75%. The research results highlight that the pH buffering capabilities of sodium citrate, sodium acetate, and sodium formate facilitate a favorable reduction reaction within an acidic pH range of 2.5-4.5. Additionally, the reductive properties of sodium formate and ascorbic acid promote the generation of active hydrogen during electrocatalysis, which aids in the regeneration of Fe(II) and enhances nitrogen selectivity.