Abstract
The exploitation of molecular catalysts for CO2 electrolysis requires their immobilization on the cathode of the electrolyzer. As an illustration of this approach, a Ni-cyclam complex with a cyclam derivative functionalized with a pyrene moiety is synthesized, found to be a selective catalyst for CO2 electroreduction to CO, and immobilized on a carbon nanotube-coated gas diffusion electrode by using a noncovalent binding strategy. The as-prepared electrode is efficient, selective, and robust for electrocatalytic reduction of CO2 to CO. Very high turnover numbers (ca. 61460) and turnover frequencies (ca. 4.27 s−1) are enabled by the novel electrode material in organic solvent-water mixtures saturated with CO2. This material provides an interesting platform for further improvement.
Original language | English |
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Pages (from-to) | 6449-6456 |
Number of pages | 8 |
Journal | ChemSusChem |
Volume | 13 |
Issue number | 23 |
Early online date | 21 Oct 2020 |
DOIs | |
Publication status | Published - 7 Dec 2020 |
Keywords
- carbon nanotubes
- CO conversion
- electrocatalysis
- heterogenization
- nickel Cyclam
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Physical Chemistry and characterization(PC2)
Wouters, J. (Manager), Aprile, C. (Manager) & Fusaro, L. (Manager)
Technological Platform Physical Chemistry and characterizationFacility/equipment: Technological Platform