Selective Electrocatalytic Reduction of CO2 to Formate by Water-Stable Iridium Dihydride Pincer Complexes

Selective Electrocatalytic Reduction of CO2 to Formate by Water-Stable Iridium Dihydride Pincer Complexes

Iridium dihydride complexes supported by PCP-type pincer ligands rapidly insert CO2 to yield κ2-formate monohydride products in THF. In acetonitrile/water mixtures, these complexes become efficient and selective catalysts for electrocatalytic reduction of CO2 to formate. Electrochemical and NMR spec...

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Veröffentlicht in:J. Am. Chem. Soc 2012-03, Vol.134 (12), p.5500-5503
Hauptverfasser: Kang, Peng, Cheng, Chen, Chen, Zuofeng, Schauer, Cynthia K, Meyer, Thomas J, Brookhart, Maurice
Format: Artikel
Sprache:eng
Schlagworte:
catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), hydrogen and fuel cells, electrodes - solar, charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly)
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Zusammenfassung:Iridium dihydride complexes supported by PCP-type pincer ligands rapidly insert CO2 to yield κ2-formate monohydride products in THF. In acetonitrile/water mixtures, these complexes become efficient and selective catalysts for electrocatalytic reduction of CO2 to formate. Electrochemical and NMR spectroscopic studies have provided mechanistic details and structures of key intermediates.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja300543s