Visible-Light-Driven Photocatalytic CO2 Reduction by a Ni(II) Complex Bearing a Bioinspired Tetradentate Ligand for Selective CO Production: Difference between revisions
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A photochemical reduction of | A photochemical reduction of CO<sub>2</sub> to CO was shown using the nickel complex {{#moleculelink:|link=SOBXSEUOEROXNJ-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalyst in combination with the ruthenium-based photosensitizer {{#moleculelink:|link=SJFYGUKHUNLZTK-UHFFFAOYSA-L|image=false|width=300|height=200}}. Turnover numbers (TONs) over 700 and a selectivity of >99% for CO were reached in dimethylacetamide/water. The experiments were conducted under visible-light irradiation (λ = 450 nm) using BIH as sacrificial reductants (see section SEDs below). | ||
==== Advances and special progress ==== | ==== Advances and special progress ==== | ||
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=== Content of the published article in detail === | === Content of the published article in detail === | ||
The article contains results for the reduction of | The article contains results for the reduction of CO<sub>2</sub> to CO under visible-light catalysis using xx complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in dimethylacetamide/water. | ||
==== Catalyst==== | ==== Catalyst==== | ||
Revision as of 15:46, 10 January 2024
Abstract
Summary
A photochemical reduction of CO2 to CO was shown using the nickel complex [Ni(bpet)(MeCN)2][ClO4]2 as catalyst in combination with the ruthenium-based photosensitizer Ru(bpy)3Cl2. Turnover numbers (TONs) over 700 and a selectivity of >99% for CO were reached in dimethylacetamide/water. The experiments were conducted under visible-light irradiation (λ = 450 nm) using BIH as sacrificial reductants (see section SEDs below).
Advances and special progress
Additional remarks
Content of the published article in detail
The article contains results for the reduction of CO2 to CO under visible-light catalysis using xx complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in dimethylacetamide/water.
Catalyst
Photosensitizer
Investigation
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | e-D conc [M] | solvent A | . | . | . | λexc [nm] | . | TON CO | . | TON H2 | . | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.03 | 0.5 | 0.1 | 450 | 713 | 6.9 | |||||||||||
| 2. | 0.03 | 0.5 | 0.1 | 450 | 159 | 11 | |||||||||||
| 3. | 0.03 | 0.5 | 0.1 | 450 | 67 | 3.4 | |||||||||||
| 4. | 0.03 | 0.5 | 0.1 | 450 | |||||||||||||
| 5. | 0.03 | 0.5 | 0.1 | 450 | |||||||||||||
| 6. | 0.03 | 0.5 | 0.1 | 450 | 2.6 | 25.5 |
Sacrificial electron donor
In this study, the experiments were done with the sacrificial electron donors TEOA (100507), BIH (100508), and TEA (100505).
Additives
In this study, control experiments were conducted...
Investigations
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
