Highly efficient and selective visible-light driven CO2-to-CO conversion by a Co-based cryptate in H2O-CH3CN solution: Difference between revisions
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A photochemical reduction of CO<sub>2</sub> to CO was shown using the copper cryptates {{#moleculelink:|link=ZEYWCDNYJFKWNP-UHFFFAOYSA-L|image=false|width=300|height=200}} or {{#moleculelink:|link=PFCMEJLVBIHANS-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalyst in combination with the ruthenium photosensitizer {{#moleculelink:|link=YRYUXGTVQZIGNQ-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H<sub>2</sub>O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below). | A photochemical reduction of CO<sub>2</sub> to CO was shown using the copper cryptates {{#moleculelink:|link=ZEYWCDNYJFKWNP-UHFFFAOYSA-L|image=false|width=300|height=200}} or {{#moleculelink:|link=PFCMEJLVBIHANS-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalyst in combination with the ruthenium photosensitizer {{#moleculelink:|link=YRYUXGTVQZIGNQ-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H<sub>2</sub>O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below). | ||
====Advances and special progress==== | ====Advances and special progress==== | ||
The authors presented a highly active copper-based catalyst for the visible-light catalyzed reduction of CO<sub>2</sub> to CO with high TON and TOF values. | |||
====Additional remarks==== | ====Additional remarks==== | ||
===Content of the published article in detail=== | ===Content of the published article in detail=== | ||
Latest revision as of 15:54, 16 May 2024
Abstract[edit | edit source]
Summary[edit | edit source]
A photochemical reduction of CO2 to CO was shown using the copper cryptates 100956 or 100957 as catalyst in combination with the ruthenium photosensitizer [Ru(phen)3][PF6]2. Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H2O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below).
Advances and special progress[edit | edit source]
The authors presented a highly active copper-based catalyst for the visible-light catalyzed reduction of CO2 to CO with high TON and TOF values.
Additional remarks[edit | edit source]
Content of the published article in detail[edit | edit source]
The article contains results for the reduction of CO2 to CO under visible-light catalysis using a copper complex as a catalyst. The catalytic system performs best (referring to the TON of CO production) in MeCN/H2O with complex 100956.
Catalyst[edit | edit source]
Photosensitizer[edit | edit source]
Investigation[edit | edit source]
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | e-D conc [M] | solvent A | . | . | . | . | λexc [nm] | . | TON CO | . | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.000025 | 0.4 | 0.3 | 450 | 33792 | |||||||||||
| 2. | 0.000025 | 0.4 | 0.3 | 450 | 18656 | |||||||||||
| 3. | 0.4 | 0.3 | 450 | 0 | ||||||||||||
| 4. | 0.000025 | 0.3 | 450 | 0 | ||||||||||||
| 5. | 0.000025 | 0.4 | 0.3 | 0 | ||||||||||||
| 6. | 0.000025 | 0.4 | 450 | 0 | ||||||||||||
| 7. | 0.0005 | 0.4 | 0.3 | 450 | 600 | |||||||||||
| 8. | 0.001 | 0.4 | 0.3 | 450 | 1582 | |||||||||||
| 9. | 0.0000125 | 0.4 | 0.3 | 450 | 51392 |
Sacrificial electron donor[edit | edit source]
In this study, the experiments were done with the sacrificial electron donor TEOA.
Additives[edit | edit source]
In this study, no additives were tested.
Investigations
- photocatalytic CO2 conversion under different conditions (Molecular process, Photocatalytic CO2 conversion experiments)
