期刊
CHEMSUSCHEM
卷 13, 期 23, 页码 6449-6456出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202002092
关键词
carbon nanotubes; CO2 conversion; electrocatalysis; heterogenization; nickel Cyclam
资金
- European School on Artificial Leaf: Electrodes & Devices (eSCALED)
- European's Union [765376]
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.
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