Homogeneous electrocatalytic oxidation of ammonia to N<sub>2</sub> under mild conditions.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 30655346.
- Also identified by DOI 10.1073/pnas.1813368116 and PMC identifier 6386726.
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Abstract
We report that ruthenium polypyridyl complexes can catalyze ammonia oxidation to dinitrogen at room temperature and ambient pressure. During bulk electrolysis experiments, gas chromatography and mass spectrometry analysis of the headspace in the electrochemical cell showed that dinitrogen and dihydrogen are generated from ammonia with high faradaic efficiencies. A proposed mechanism where a hydrazine complex is the initial N-N bonded intermediate is supported by chemical and electrochemical experiments. This is a well-defined system for homogeneous electrocatalytic ammonia oxidation. It establishes a platform for answering mechanistic questions relevant to using ammonia to store and distribute renewable energy.
Medical subject headings
- Ammonia
- Coordination Complexes
- Renewable Energy
- Ruthenium