Metal-free reduction of CO2 to formate using a photochemical organohydride-catalyst recycling strategy: Difference between revisions

Revision as of 09:56, 15 May 2024

Abstract

Summary

A photochemical reduction of CO₂ to formic acid was shown using 1,2,3-Trimethylbenzimidazolium iodide as catalyst in combination with the organic carbazole-based photosensitizer 3,6-bis(dimethylamino)-9-phenyl-9H-carbazole. Turnover numbers (TONs) of 6080 for the catalyst and 8820 for the photosensitizer and an exclusive selectivity for formic acid were reached in MeCN/H₂O. The experiments were conducted under visible-light irradiation (λ = 400 nm) using ascorbic acid as sacrificial electron donor (see section SEDs below) and potassium carbonate as a base.

Advances and special progress

A transition-metal free process for the efficient photocatalytic reduction of CO₂ to formic acid was described. The use of an organohydride catalyst allowed for a high selectivity for formate without noteworthy formation of H₂ or CO.

Additional remarks

Content of the published article in detail

The article contains results for the reduction of CO₂ to HCOO^- under visible-light catalysis using 1,2,3-Trimethylbenzimidazolium iodide as a catalyst. The catalytic system performs best (referring to the TON of formic acid production) in MeCN/H₂O with photosensitizer 3,6-bis(dimethylamino)-9-phenyl-9H-carbazole.

Catalyst

1,2,3-Trimethylbenzimidazolium iodide

Photosensitizer

3,6-bis(dimethylamino)-9-phenyl-9H-carbazole 3,6-bis(dimethylamino)carbazole 3,6-Bis(diphenylamino)-9-phenyl-9H-carbazole

Investigation

Sacrificial electron donor

In this study, the experiments were done with the sacrificial electron donor ascorbic acid L-ascorbate, sodium. The use of BIH was tested, but found to yield worse results.

Additives

In this study, potassium carbonate was added as a base.

Investigations

photocatalytic CO2 conversion under different conditions (Molecular process, Photocatalytic CO2 conversion experiments)

DOI	10.1038/s41557-023-01157-6
Authors	Weibin Xie, Jiasheng Xu, Ubaidah Md Idros, Jouji Katsuhira, Masaaki Fuki, Masahiko Hayashi, Masahiro Yamanaka, Yasuhiro Kobori, Ryosuke Matsubara,
Submitted	23.03.2023
Published online	23.03.2023
Licenses	https://www.springernature.com/gp/researchers/text-and-data-mining, https://www.springernature.com/gp/researchers/text-and-data-mining,
Subjects	-
Go to literature page

@@ Line 10: / Line 10: @@
 ====Additional remarks====
 ===Content of the published article in detail===
-The article contains results for the reduction of CO<sub>2</sub> to HCOO<sup>-</sup> under visible-light catalysis using {{#moleculelink:|link=RDSICPYJALLFAN-UHFFFAOYSA-M|image=false|width=300|height=200}} as a catalyst. The catalytic system performs best (referring to the TON of formic acid production) in MeCN/H<sub>2</sub>O.
+The article contains results for the reduction of CO<sub>2</sub> to HCOO<sup>-</sup> under visible-light catalysis using {{#moleculelink:|link=RDSICPYJALLFAN-UHFFFAOYSA-M|image=false|width=300|height=200}} as a catalyst. The catalytic system performs best (referring to the TON of formic acid production) in MeCN/H<sub>2</sub>O with photosensitizer {{#moleculelink:|link=SEAGXMGVRJVEBS-UHFFFAOYSA-N|image=false|width=300|height=200}}.
 ====Catalyst====
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Metal-free reduction of CO2 to formate using a photochemical organohydride-catalyst recycling strategy: Difference between revisions

Revision as of 09:56, 15 May 2024

Contents

Abstract

Summary

Advances and special progress

Additional remarks

Content of the published article in detail

Catalyst

Photosensitizer

Investigation

Sacrificial electron donor

Additives

Investigations

Topics

Metal-free reduction of CO2 to formate using a photochemical organohydride-catalyst recycling strategy: Difference between revisions

Revision as of 09:56, 15 May 2024

Abstract

Summary

Advances and special progress

Additional remarks

Content of the published article in detail

Catalyst

Photosensitizer

Investigation

Sacrificial electron donor

Additives

Investigations

Current site

Topics