Electrochemical Synthesis of Nitrite and Nitrate via Cathodic Oxygen Activation in Liquefied Ammonia.

ABSTRACT: The electrochemical oxidation of ammonia (NH₃) enables decentralized small-scale synthesis of nitrate (NO₃^-) and nitrite (NO₂^-) under ambient conditions by directly utilizing renewable energy. Yet, their electrosynthesis has been restricted to aqueous media and low ammonia concentrations. For the first time, we demonstrate here a strategy enabling the direct electrooxidation of liquefied NH₃ to NO₃^- and NO₂^- by using molecular oxygen, achieving combined Faraday efficiencies above 40%.

SUBMITTER: Krebs ML 

PROVIDER: S-EPMC11565706 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature