Molecular Catalysis of the Electrochemical and Photochemical Reduction of CO2 with Earth-Abundant Metal Complexes. Selective Production of CO vs HCOOH by Switching of the Metal Center: Difference between revisions
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[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
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===Abstract=== | |||
==== Summary==== | |||
A photochemical reduction of CO<sub>2</sub> to CO or formic acid was shown using the iron complexes {{#moleculelink:|link=XTLBRFNUSVMBAM-DQIPMIPLSA-K|image=false|width=300|height=200}} or {{#moleculelink:|link=UEQRGEGBADTDNK-YBRXSBAKSA-L|image=false|width=300|height=200}} as catalysts in combination with the iridium-based photosensitizer {{#moleculelink:|link=NSABRUJKERBGOU-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) over xx and a selectivity of xx% for CO were reached in xx. The experiments were conducted under visible-light irradiation (λ = xx nm) using TEA 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 CO<sub>2</sub> to CO and formic acid under visible-light catalysis using iron complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in xx. | |||
====Catalyst==== | ====Catalyst==== | ||
<chemform smiles="C1C2C(C)=N3[Fe+3]([Cl-])([Cl-])456N(CCN4CCN5CC3)=C(C)C(N=26)=CC=1.Cl([O-])(=O)(=O)=O" inchi="1S/C15H23N5.ClHO4.2ClH.Fe/c1-12-14-4-3-5-15(20-14)13(2)19-11-9-17-7-6-16-8-10-18-12;2-1(3,4)5;;;/h3-5,16-17H,6-11H2,1-2H3;(H,2,3,4,5);2*1H;/q;;;;+3/p-3/b18-12+,19-13+;;;;" inchikey="XTLBRFNUSVMBAM-DQIPMIPLSA-K" height="200px" width="300px" float="none"> | <chemform smiles="C1C2C(C)=N3[Fe+3]([Cl-])([Cl-])456N(CCN4CCN5CC3)=C(C)C(N=26)=CC=1.Cl([O-])(=O)(=O)=O" inchi="1S/C15H23N5.ClHO4.2ClH.Fe/c1-12-14-4-3-5-15(20-14)13(2)19-11-9-17-7-6-16-8-10-18-12;2-1(3,4)5;;;/h3-5,16-17H,6-11H2,1-2H3;(H,2,3,4,5);2*1H;/q;;;;+3/p-3/b18-12+,19-13+;;;;" inchikey="XTLBRFNUSVMBAM-DQIPMIPLSA-K" height="200px" width="300px" float="none"> | ||
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====Investigation==== | ====Investigation==== | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | {{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | ||
====Sacrificial electron donor==== | ====Sacrificial electron donor==== | ||
In this study, the experiments were done with the sacrificial electron donor TEA ([[Molecule:100505|100505]]). | |||
====Additives==== | |||
In this study, no additives were tested. | |||
Revision as of 15:11, 18 January 2024
Abstract
Summary
A photochemical reduction of CO2 to CO or formic acid was shown using the iron complexes [Fe(pabop)Cl2][CLO4] or [Co(pabop)][ClO4]2 as catalysts in combination with the iridium-based photosensitizer Ir(ppy)3. Turnover numbers (TONs) over xx and a selectivity of xx% for CO were reached in xx. The experiments were conducted under visible-light irradiation (λ = xx nm) using TEA 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 and formic acid under visible-light catalysis using iron complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in xx.
Catalyst
[Fe(pabop)Cl2][CLO4]
[Co(pabop)][ClO4]2
Photosensitizer
Investigation
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | solvent A | . | . | λexc [nm] | . | TON CO | TON HCOOH | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.05 | 0.2 | >460 | 270 | |||||||||
| 2. | 0.05 | 0.2 | >420 | 5 |
Sacrificial electron donor
In this study, the experiments were done with the sacrificial electron donor TEA (100505).
Additives
In this study, no additives were tested.
Investigations
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
