Homogeneous electrocatalytic oxidation of ammonia to N 2 under mild conditions
| Autor: | Milton R. Smith, Thomas W. Hamann, Susanne L. Miller, Faezeh Habibzadeh |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Electrolysis
Multidisciplinary Chemistry Inorganic chemistry Hydrazine 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences 0104 chemical sciences Electrochemical cell law.invention Catalysis Hydrogen storage chemistry.chemical_compound Ammonia law Bulk electrolysis 0210 nano-technology |
| Zdroj: | Proceedings of the National Academy of Sciences. 116:2849-2853 |
| ISSN: | 1091-6490 0027-8424 |
| DOI: | 10.1073/pnas.1813368116 |
| Popis: | Significance Water oxidation fixes carbon dioxide producing ∼100 gigatons (GT) of carbohydrates annually. Living organisms convert the stored chemical energy back to carbon dioxide and water through respiration. An analogous cycle can be envisioned whereby hydrogen gas is stored as ammonia, synthesized from atmospherically ubiquitous dinitrogen. Biological and industrial reduction of dinitrogen is currently estimated to produce 0.3–0.5 GT of ammonia annually. An important reaction in such a proposed nitrogen-based hydrogen storage and distribution scheme is the oxidation of ammonia back to dinitrogen and the protons and electrons that regenerate hydrogen gas. While inorganic materials can oxidize ammonia to dinitrogen, protons, and electrons, no molecular species are known to catalyze this reaction. |
| Databáze: | OpenAIRE |
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