Visible-Light Photocatalytic Reduction of CO2 to Formic Acid with a Ru Catalyst Supported by N,N’- Bis(diphenylphosphino)-2,6-diaminopyridine Ligands: Difference between revisions
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[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
===Abstract=== | |||
====Summary==== | |||
A photochemical reduction of CO<sub>2</sub> to formic acid was shown using the ruthenium complex {{#moleculelink:|link=|image=|width=|height=}} as catalyst in combination with the ruthenium-based photosensitizer {{#moleculelink:|link=KLDYQWXVZLHTKT-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) over xx and a selectivity of xx% for CO were reached in dimethylformamide. The experiments were conducted under visible-light irradiation (λ = 405 nm) using TEOA 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 formic acid under visible-light catalysis using a ruthenium complex as a catalyst. The catalytic system performs best (referring to the TON of formic acid production) in dimethylformamide. | |||
==== Catalyst==== | ==== Catalyst==== | ||
<chemform smiles="C1C2N([*])P(C3C=CC=CC=3)(C3C=CC=CC=3)[Ru+]([C-]#[O+])([C-]#[O+])3P(C4C=CC=CC=4)(C4C=CC=CC=4)N([*])C(N=23)=CC=1.[Cl-]" inchikey="" inchi="" float="none" width="200" height="200" r1="H,Me"> | <chemform smiles="C1C2N([*])P(C3C=CC=CC=3)(C3C=CC=CC=3)[Ru+]([C-]#[O+])([C-]#[O+])3P(C4C=CC=CC=4)(C4C=CC=CC=4)N([*])C(N=23)=CC=1.[Cl-]" inchikey="" inchi="" float="none" width="200" height="200" r1="H,Me"> | ||
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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 donors TEOA ([[Molecule:100507|100507]]). | ||
====Additives==== | |||
In this study, no additives were tested. | |||
Revision as of 13:50, 18 January 2024
Abstract
Summary
A photochemical reduction of CO2 to formic acid was shown using the ruthenium complex -missing link parameter- as catalyst in combination with the ruthenium-based photosensitizer [Ru(bpy)3][PF6]. Turnover numbers (TONs) over xx and a selectivity of xx% for CO were reached in dimethylformamide. The experiments were conducted under visible-light irradiation (λ = 405 nm) using TEOA 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 formic acid under visible-light catalysis using a ruthenium complex as a catalyst. The catalytic system performs best (referring to the TON of formic acid production) in dimethylformamide.
Catalyst
Photosensitizer
Investigation
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | solvent A | . | λexc [nm] | . | TON H2 | TON HCOOH | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.025 | 0.025 | 405 | 380 | ||||||||
| 2. | 0.05 | 0.05 | 405 | 210 | ||||||||
| 3. | 0.1 | 0.1 | 405 | 57.5 | 363 | |||||||
| 4. | 0.5 | 1 | 405 | 14 | 162 | |||||||
| 5. | 1 | 1 | 405 | 13.3 | 90.5 | |||||||
| 6. | 0.5 | 1 | 405 | 14 | 70.5 | |||||||
| 7. | 1 | 1 | 405 | 12 | 44.5 | |||||||
| 8. | 2 | 1 | 405 | 9.3 | 41.5 |
Sacrificial electron donor
In this study, the experiments were done with the sacrificial electron donors TEOA (100507).
Additives
In this study, no additives were tested.
Investigations
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
