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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{{#doiinfobox: 10.1002/cssc.201901326}}{{MissingInvestigation}} | {{#doiinfobox: 10.1002/cssc.201901326}}{{MissingInvestigation}} | ||
[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
More investigations in the SI (table S1 and S3) | More investigations in the SI (table S1 and S3, S2 is the one already added) | ||
===Abstract=== | ===Abstract=== | ||
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====Investigation==== | ====Investigation==== | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name= | {{#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]]). | In this study, the experiments were done with the sacrificial electron donors TEOA ([[Molecule:100507|100507]]). | ||
====Additives==== | ====Additives==== | ||
In this study, no additives were tested. | In this study, no additives were tested. | ||
Revision as of 10:36, 29 January 2024
 Missing investigation
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This page about a publication or dataset does not currently include an investigation. Please add any experiments detailed in the publication or performed to obtain this dataset.
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More investigations in the SI (table S1 and S3, S2 is the one already added)
Abstract
Summary
A photochemical reduction of CO2 to formic acid was shown using the ruthenium pincer complexes Ru(py)-(HNdpp)2(CO)2Cl and Ru(py)-(MeNdpp)2(CO)2Cl as catalyst in combination with the ruthenium-based photosensitizer [Ru(bpy)3][PF6]. Turnover numbers (TONs) of 380 for formic acid were reached in dimethylformamide with complex Ru(py)-(MeNdpp)2(CO)2Cl. The experiments were conducted under visible-light irradiation (λ = 405 nm) using TEOA as sacrificial electron donor (see section SEDs below).
Advances and special progress
The authors report a novel molecular architecture for a ruthenium photocatalyst active in the reduction of CO2 to formic acid, displaying competitive TONs and quantum yields up to 14%.
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 ruthenium complexes as catalysts. The catalytic system performs best (referring to the TON of formic acid production) with complex Ru(py)-(MeNdpp)2(CO)2Cl 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)
