title: Two-electron carbon dioxide reduction catalyzed by rhenium(I) bis(imino)acenaphthene carbonyl complexes.
abstract: Rhenium(I) carbonyl complexes carrying substituted bis(arylimino)acenaphthene ligands (BIAN-R) have been tested as potential catalysts for the two-electron reduction of carbon dioxide. Cyclic voltammetric studies as well as controlled potential electrolysis experiments were performed using CO2-saturated solutions of the complexes in acetonitrile and acetonitrile-water mixtures. Faradaic efficiencies of more than 30 % have been determined for the electrocatalytic production of CO. The effects of ligand substitution patterns and water content of the reaction medium on the catalytic performance of the new catalysts are discussed.
authors.affiliation: Institute of Physical Chemistry, Johannes Kepler University Linz (JKU), 4040 Linz (Austria).
authors.forename: Engelbert
authors.initials: E
authors.lastname: Portenkirchner
authors.forename: Elham
authors.initials: E
authors.lastname: Kianfar
authors.forename: Niyazi Serdar
authors.initials: NS
authors.lastname: Sariciftci
authors.forename: Günther
authors.initials: G
authors.lastname: Knör
mesh_terms: D000073:Acenaphthenes / Q000737:chemistry*; D000097:Acetonitriles / Q000737:chemistry; D002245:Carbon Dioxide / Q000737:chemistry*; D002248:Carbon Monoxide / Q000737:chemistry*; D002384:Catalysis; D004566:Electrodes; D004583:Electrons; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D012211:Rhenium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000073:Acenaphthenes; D000097:Acetonitriles; D009942:Organometallic Compounds; D014867:Water; D002245:Carbon Dioxide; D012211:Rhenium; D002248:Carbon Monoxide; C032159:acetonitrile
keywords: carbon dioxide chemistry; carbonyl ligands; homogeneous catalysis; reduction; rhenium
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