Electrochemical CO2 Reduction at Glassy Carbon Electrodes Functionalized by MnI and ReI Organometallic Complexes
| Autor: | Luca Nencini, Claudio Garino, Laura Rotundo, Roberto Gobetto, Carlo Nervi, Sam S. Yoon, Cunfa Sun |
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| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Inorganic chemistry carbon dioxide chemistry.chemical_element reduction Manganese Glassy carbon Rhenium 010402 general chemistry Electrochemistry 01 natural sciences Atomic and Molecular Physics and Optics electrode functionalization 0104 chemical sciences Catalysis Reduction (complexity) chemistry.chemical_compound chemistry Electrode Carbon dioxide Re complexes Physical and Theoretical Chemistry Mn complexes carbon dioxide electrode functionalization Mn complexes Re complexes reduction |
| Zdroj: | ChemPhysChem. 18:3219-3229 |
| ISSN: | 1439-4235 |
| Popis: | The catalytic activities towards electrochemical CO2 reduction of two new rhenium and manganese complexes, namely fac-Mn(apbpy)(CO)3Br (1) and fac-Re(apbpy)(CO)3Cl (2) (apbpy=4-(4-aminophenyl)-2,2′-bipyridine), in both homogeneous and heterogeneous phases are compared. A glassy carbon electrode (GCE) surface has been functionalized with complexes 1 and 2 by two approaches: a) direct electrochemical oxidation of the amino group with formation of C−N bonds, and b) electrochemical reduction of the corresponding diazonium salts with formation of C−C bonds. The chemically modified GCEs show efficient conversion of CO2 into CO, with turnover numbers (TONs) about 60 times higher than those of the corresponding catalysts in homogeneous solutions, and in a much shorter time. |
| Databáze: | OpenAIRE |
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