Journal
ACS APPLIED ENERGY MATERIALS
Volume 5, Issue 8, Pages 9280-9285Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.2c01408
Keywords
CO2 Reduction; Hydroboration; Electrochemistry; Ruthenium; Ligand-centered Reactivity
Funding
- American Chemical Society Petroleum Research Fund
- chemistry department at the University of Richmond
- Integrative Quantitative Sciences program at the University of Richmond
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In this study, four Ru complexes containing bidentate polypyridyl ligands were synthesized. It was found that these complexes can selectively reduce CO2 to liquid fuels, with the involvement of amines playing a crucial role in this process.
The selective reduction of CO2 to liquid fuels by molecular catalysts remains a significant challenge. In this paper, four Ru complexes containing bidentate polypyridyl ligands were synthesized. Each complex also contains a secondary or tertiary amine as part of a benzimidazole moiety. All of the complexes are active in the hydroboration of CO2 to formate, while two of the complexes reduce CO2 to the methoxy oxidation state upon the addition of pinacol borane. 1H and 13C{1H} NMR studies of these chemical reductions suggest the importance of amines in this process, while electrochemical measurements also indicate reactivity with CO2.
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