Electrochemical Synthesis of Nitrite and Nitrate via Cathodic Oxygen Activation in Liquefied Ammonia
The electrochemical oxidation of ammonia (NH<sub>3</sub>) enables decentralized small-scale synthesis of nitrate (NO<sub>3</sub><sup>-</sup>) and nitrite (NO<sub>2</sub><sup>-</sup>) 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 NH<sub>3</sub> to NO<sub>3</sub><sup>-</sup> and NO<sub>2</sub><sup>-</sup> by using molecular oxygen, achieving combined Faraday efficiencies above 40%.
Authors
- Ferdi Schüth (ORCID: https://orcid.org/0000-0003-3765-9848)
- Moritz Krebs (ORCID: https://orcid.org/0000-0002-0908-4816)
Institutions
- Max-Planck-Institut für Kohlenforschung (DE)
Publication Details
- Journal
- Journal of the American Chemical Society
- Published
- 2024-11-04
- DOI
- https://doi.org/10.1021/jacs.4c10279
- Citations
- 9
- Primary Topic
- Ammonia Synthesis and Nitrogen Reduction
- Type
- article
- Field-Weighted Citation Impact
- 0.96
Funders
- Deutsche Forschungsgemeinschaft
- Max-Planck-Gesellschaft