Water-Assisted Highly Efficient Photocatalytic Reduction of CO2 to CO with Noble Metal-Free Bis(terpyridine)iron(II) Complexes and an Organic Photosensitizer: Difference between revisions
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===Abstract=== | ===Abstract=== | ||
====Summary==== | ====Summary==== | ||
A photochemical reduction of CO<sub>2</sub> to CO was shown using the iron complexes | A photochemical reduction of CO<sub>2</sub> to CO was shown using the iron complexes {{#moleculelink:|link=VCSOHGDMTDAXCJ-UHFFFAOYSA-N|image=false|width=300|height=200}}, {{#moleculelink:|link=GNLSTNFUDXOKCD-UHFFFAOYSA-N|image=false|width=300|height=200}} and {{#moleculelink:|link=DJDQCCRAAYOAPK-UHFFFAOYSA-N|image=false|width=300|height=200}} as catalysts in combination with the organic photosensitizer {{#moleculelink:|link=PRWATGACIORDEL-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) of 6320 and a selectivity of 99.4% for CO were reached in DMF/H<sub>2</sub>O with catalyst {{#moleculelink:|link=DJDQCCRAAYOAPK-UHFFFAOYSA-N|image=false|width=300|height=200}}. The experiments were conducted under visible-light irradiation (λ = 440 nm) using TEA as sacrificial electron donor (see section SEDs below). | ||
====Advances and special progress==== | ====Advances and special progress==== | ||
====Additional remarks==== | ====Additional remarks==== | ||
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<chemform smiles="" inchi="" inchikey="PRWATGACIORDEL-UHFFFAOYSA-N" height="200px" width="300px" float="none"></chemform> | <chemform smiles="" inchi="" inchikey="PRWATGACIORDEL-UHFFFAOYSA-N" height="200px" width="300px" float="none"></chemform> | ||
====Investigation==== | ====Investigation==== | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=photocatalytic CO2 conversion|importFile=}} | |||
====Sacrificial electron donor==== | ====Sacrificial electron donor==== | ||
In this study, the experiments were done with the sacrificial electron donor TEA ({{#moleculelink:|link=ZMANZCXQSJIPKH-UHFFFAOYSA-N|image=false|width=300|height=200}}). | In this study, the experiments were done with the sacrificial electron donor TEA ({{#moleculelink:|link=ZMANZCXQSJIPKH-UHFFFAOYSA-N|image=false|width=300|height=200}}). | ||
====Additives==== | ====Additives==== | ||
In this study, no additives were tested. | In this study, no additives were tested. | ||
Revision as of 15:37, 14 May 2024
Abstract
Summary
A photochemical reduction of CO2 to CO was shown using the iron complexes 100947, 100948 and 100949 as catalysts in combination with the organic photosensitizer 4CzIPN. Turnover numbers (TONs) of 6320 and a selectivity of 99.4% for CO were reached in DMF/H2O with catalyst 100949. The experiments were conducted under visible-light irradiation (λ = 440 nm) using TEA as sacrificial electron donor (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 the iron complex as a catalyst. The catalytic system performs best (referring to the TON of CO production) in DMF/H2O.
Catalyst
Photosensitizer
Investigation
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | e-D conc [M] | solvent A | . | . | . | λexc [nm] | . | TON CO | . | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.01 | 0.05 | 0.28 | 420-650 | 6320 | ||||||||||
| 2. | 0.01 | 0.05 | 0.28 | 420-650 | 2780 | ||||||||||
| 3. | 0.01 | 0.05 | 0.28 | 420-650 | 4500 | ||||||||||
| 4. | 0.01 | 0.05 | 0.28 | 420-650 | 19 | ||||||||||
| 5. | 0.01 | 0.05 | 0.28 | 420-650 | 992 |
Investigation-Name: photocatalytic CO2 conversion
Sacrificial electron donor
In this study, the experiments were done with the sacrificial electron donor TEA (TEA).
Additives
In this study, no additives were tested.
Investigations
- photocatalytic CO2 conversion (Molecular process, Photocatalytic CO2 conversion experiments)
