Visible-Light Photocatalytic Conversion of Carbon Dioxide by Ni(II) Complexes with N4S2 Coordination: Highly Efficient and Selective Production of Formate: Difference between revisions
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{{#doiinfobox: 10.1021/jacs.0c08145}} | {{#doiinfobox: 10.1021/jacs.0c08145}} | ||
===Abstract=== | |||
====Summary==== | |||
A photochemical reduction of CO<sub>2</sub> to formate was shown using the nickel complexes {{#moleculelink:|link=CLQAFMRCKIGWOF-UHFFFAOYSA-L|image=false|width=300|height=200}} or {{#moleculelink:|link=BDPUYSVREMMVBP-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalysts in combination with the organic photosensitizer {{#moleculelink:|link=SEACYXSIPDVVMV-UHFFFAOYSA-L|image=false|width=300|height=200}}. Turnover numbers (TONs) of 115 and a selectivity of 100% for CO were reached in ethanol/water. The experiments were conducted under visible-light irradiation (λ > 400 nm) using BIH 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 CO<sub>2</sub> to formate under visible-light catalysis using nickel complexes and an organic photosensitizer. The catalytic system performs best (referring to the TON of formate production) in ethanol/water. | |||
==== Catalyst==== | ==== Catalyst ==== | ||
<chemform smiles="C1C=CC=N2[Ni+2]3([S-]C4N3=CC=CC=4)3([S-]C4=CC=CC=N43)N3=C(NC4C=CC=CC=43)C=12" inchikey="CLQAFMRCKIGWOF-UHFFFAOYSA-L" inchi="1S/C12H9N3.2C5H5NS.Ni/c1-2-6-10-9(5-1)14-12(15-10)11-7-3-4-8-13-11;2*7-5-3-1-2-4-6-5;/h1-8H,(H,14,15);2*1-4H,(H,6,7);/q;;;+2/p-2" float="none" width="300" height="200"> | <chemform smiles="C1C=CC=N2[Ni+2]3([S-]C4N3=CC=CC=4)3([S-]C4=CC=CC=N43)N3=C(NC4C=CC=CC=43)C=12" inchikey="CLQAFMRCKIGWOF-UHFFFAOYSA-L" inchi="1S/C12H9N3.2C5H5NS.Ni/c1-2-6-10-9(5-1)14-12(15-10)11-7-3-4-8-13-11;2*7-5-3-1-2-4-6-5;/h1-8H,(H,14,15);2*1-4H,(H,6,7);/q;;;+2/p-2" float="none" width="300" height="200"> | ||
-INDIGO-11302312462D | -INDIGO-11302312462D | ||
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{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | {{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | ||
==== Sacrificial | ==== Sacrificial Electron Donor ==== | ||
In this study, the experiments were done with the sacrificial electron donor TEOA ([[Molecule:100507|triethanolamine]]). | |||
==== Additives ==== | |||
In this study, different additives were used. | |||
[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
Revision as of 16:27, 22 January 2024
Abstract
Summary
A photochemical reduction of CO2 to formate was shown using the nickel complexes Ni(pbi)(pyS)2 or Ni(pbt)(pyS)2 as catalysts in combination with the organic photosensitizer Eosin Y. Turnover numbers (TONs) of 115 and a selectivity of 100% for CO were reached in ethanol/water. The experiments were conducted under visible-light irradiation (λ > 400 nm) using BIH 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 formate under visible-light catalysis using nickel complexes and an organic photosensitizer. The catalytic system performs best (referring to the TON of formate production) in ethanol/water.
Catalyst
Photosensitizer
Investigation
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | e-D conc [M] | solvent A | . | . | . | . | TON HCOOH | . | . | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 0.004 | 2 | 0.4 | 14000 | |||||||||||
| 2. | 0.004 | 2 | 0.4 | 13100 |
Sacrificial Electron Donor
In this study, the experiments were done with the sacrificial electron donor TEOA (triethanolamine).
Additives
In this study, different additives were used.
Investigations
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
