Photocatalytic CO2 Reduction Mediated by Electron Transfer via the Excited Triplet State of Zn(II) Porphyrin: Difference between revisions
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{{DOI|doi=10.1021/jacs.9b12712}} | {{DOI|doi=10.1021/jacs.9b12712}} | ||
[[Category:Photocatalytic CO2 conversion to CO]][[Category:Publication]] | [[Category:Photocatalytic CO2 conversion to CO]] | ||
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{{BaseTemplate}} | {{BaseTemplate}} | ||
===Abstract=== | ===Abstract=== | ||
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====Sacrificial electron donor==== | ====Sacrificial electron donor==== | ||
In this study, the experiments were done with the sacrificial electron donor | In this study, the experiments were done with the sacrificial electron donor {{#moleculelink:|link=VDFIVJSRRJXMAU-UHFFFAOYSA-N|image=false|width=300|height=200}}. | ||
====Additives==== | ====Additives==== | ||
In this study, | In this study, {{#moleculelink:|link=ISWSIDIOOBJBQZ-UHFFFAOYSA-N|image=false|width=300|height=200}} was used as an additive. | ||
Latest revision as of 15:59, 21 May 2024
Abstract[edit | edit source]
Summary[edit | edit source]
A photochemical reduction of CO2 to CO was shown using the zinc porphyrin dyad with a connected rhenium complex (Zn(tBuPP))-(Re(Phen)Br(CO)3) as a combined catalyst and photosensitizer molecule. Turnover numbers (TONs) of >1300 and a selectivity of >99.9% for CO were reached in DMA. The experiments were conducted under visible-light irradiation (λ = 420 nm) using BIH as sacrificial electron donor (see section SEDs below).
Advances and special progress[edit | edit source]
A selective method for the reduction of CO2 to CO with a porphyrin-rhenium complex dyad was presented, effectively linking the catalyst and photosensitizer in one molecule.
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 (Zn(tBuPP))-(Re(Phen)Br(CO)3) as a catalyst and photosensitizer. The catalytic system performs best (referring to the TON of CO production) in DMA.
Catalyst and Photosensitizer[edit | edit source]
Investigation[edit | edit source]
| cat | cat conc [µM] | e-D | e-D conc [M] | solvent A | additives | . | . | λexc [nm] | . | TON CO | . | . | . | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.05 | 0.05 | phenol | 420 nm | 910 | ||||||||||
| 2. | 0.075 | 0.05 | phenol | 420 nm | 1340 | ||||||||||
| 3. | 0.05 | 0.05 | 420 nm | 520 |
Sacrificial electron donor[edit | edit source]
In this study, the experiments were done with the sacrificial electron donor BIH.
Additives[edit | edit source]
In this study, PhOH was used as an additive.
Investigations
- photocatalytic CO2 conversion (Molecular process, Photocatalytic CO2 conversion experiments)
