Visible light driven reduction of CO2 catalyzed by an abundant manganese catalyst with zinc porphyrin photosensitizer: Difference between revisions
From ChemWiki
publication
| About |
|---|
(auto-generated) |
m (added Publication category) |
||
| (7 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
{{ | {{DOI|doi=10.1016/j.apcata.2016.04.035}} | ||
[[Category:Photocatalytic CO2 conversion to CO]] | [[Category:Photocatalytic CO2 conversion to CO]] | ||
[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
{{BaseTemplate}} | {{BaseTemplate}} | ||
=== Abstract === | |||
==== Summary ==== | |||
A photochemical reduction of CO<sub>2</sub> was shown using the manganese catalyst {{#moleculelink:|link=ZUZWBGQHMPVNDY-UHFFFAOYSA-M|image=false|width=300|height=200}} and the zinc photosensitizer {{#moleculelink:|link=XPVVGUHKLPZAEN-DAJBKUBHSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) of 64 and 16 were reached after 180 min of irradiation for CO and formic acid, respectively. The experiments were performed using a Xenon lamp as the light source. | |||
==== Advances and special progress ==== | |||
Photochemical CO<sub>2</sub> conversion in an environmentally friendly and sustainable photocatalytic system using earth abundant metal complexes efficiently yielded CO and HCOOH in aqueous acetonitrile solution. | |||
==== Additional remarks ==== | |||
The manganese catalyst and the zinc photosensitizer were used in different ratios, resulting in different TONs for CO and HCOOH production. | |||
=== Content of the published article in detail === | |||
The article contains results for the reduction of CO<sub>2</sub> to CO and HCOOH using different ratios of the catalyst and photosensitizer. The catalytic system performed best (referring to the TONs of CO and HCOOH production) for the catalyst:photosensitizer ratio of 4:1. | |||
==== Catalyst==== | ==== Catalyst==== | ||
| Line 62: | Line 76: | ||
====Photosensitizer ==== | ====Photosensitizer ==== | ||
<chemform smiles="C1=C2/C(/C3C=CC=CC=3)=C3\N=C(/C(/C4C=CC=CC=4)=C4\[N-]/C(=C(/C5C=CC=CC=5)\C5=N/C(=C(/C6C=CC=CC=6)\C(=C1)[N-]2)/C=C5)/C=C\4)C=C\3.[Zn]" inchikey=" | <chemform smiles="C1=C2/C(/C3C=CC=CC=3)=C3\N=C(/C(/C4C=CC=CC=4)=C4\[N-]/C(=C(/C5C=CC=CC=5)\C5=N/C(=C(/C6C=CC=CC=6)\C(=C1)[N-]2)/C=C5)/C=C\4)C=C\3.[Zn+2]" inchikey="XPVVGUHKLPZAEN-DAJBKUBHSA-N" inchi="1S/C44H28N4.Zn/c1-5-13-29(14-6-1)41-33-21-23-35(45-33)42(30-15-7-2-8-16-30)37-25-27-39(47-37)44(32-19-11-4-12-20-32)40-28-26-38(48-40)43(31-17-9-3-10-18-31)36-24-22-34(41)46-36;/h1-28H;/q-2;+2/b41-33-,41-34-,42-35-,42-37-,43-36-,43-38-,44-39-,44-40-;" float="none" width="200" height="200"> | ||
-INDIGO- | -INDIGO-11302313082D | ||
0 0 0 0 0 0 0 0 0 0 0 V3000 | 0 0 0 0 0 0 0 0 0 0 0 V3000 | ||
| Line 117: | Line 131: | ||
M V30 47 C 7.00272 -0.690101 0.0 0 | M V30 47 C 7.00272 -0.690101 0.0 0 | ||
M V30 48 C 6.99626 0.309953 0.0 0 | M V30 48 C 6.99626 0.309953 0.0 0 | ||
M V30 49 Zn 6.4 -4.425 0.0 0 | M V30 49 Zn 6.4 -4.425 0.0 0 CHG=2 | ||
M V30 END ATOM | M V30 END ATOM | ||
M V30 BEGIN BOND | M V30 BEGIN BOND | ||
| Line 185: | Line 199: | ||
==== Sacrificial electron donor ==== | ==== Sacrificial electron donor ==== | ||
{{#moleculelink:|link=ZMANZCXQSJIPKH-UHFFFAOYSA-N|image= | In this study, triethylamine ({{#moleculelink:|link=ZMANZCXQSJIPKH-UHFFFAOYSA-N|image=false|width=300|height=200}}) was used as sacrificial electron donor. | ||
==== Additives ==== | |||
In this study, no additives were used.[[Category:Publication]] | |||
Latest revision as of 10:37, 11 April 2024
Abstract[edit | edit source]
Summary[edit | edit source]
A photochemical reduction of CO2 was shown using the manganese catalyst Mn(bpy)(CO)3Br and the zinc photosensitizer ZnTPP. Turnover numbers (TONs) of 64 and 16 were reached after 180 min of irradiation for CO and formic acid, respectively. The experiments were performed using a Xenon lamp as the light source.
Advances and special progress[edit | edit source]
Photochemical CO2 conversion in an environmentally friendly and sustainable photocatalytic system using earth abundant metal complexes efficiently yielded CO and HCOOH in aqueous acetonitrile solution.
Additional remarks[edit | edit source]
The manganese catalyst and the zinc photosensitizer were used in different ratios, resulting in different TONs for CO and HCOOH production.
Content of the published article in detail[edit | edit source]
The article contains results for the reduction of CO2 to CO and HCOOH using different ratios of the catalyst and photosensitizer. The catalytic system performed best (referring to the TONs of CO and HCOOH production) for the catalyst:photosensitizer ratio of 4:1.
Catalyst[edit | edit source]
Photosensitizer[edit | edit source]
Investigation[edit | edit source]
| cat | cat conc [µM] | PS | PS conc [mM] | e-D | e-D conc [M] | solvent A | . | . | λexc [nm] | . | TON CO | TON HCOOH | . | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 2 | 0.5 | 0.1 | xenon lamp | 119 | 19 | ||||||||
| 2. | 1.5 | 0.5 | 0.1 | xenon lamp | 97 | 18 | ||||||||
| 3. | 0.5 | 0.25 | 0.1 | xenon lamp | 64 | 16 | ||||||||
| 4. | 0.5 | 0.5 | 0.1 | xenon lamp | 12 | 10 | ||||||||
| 5. | 0.5 | 1 | 0.1 | xenon lamp | 8 | 6 | ||||||||
| 6. | 0.5 | 0.1 | xenon lamp | 2 | 1 | |||||||||
| 7. | 0.5 | 0.1 | xenon lamp |
Investigation-Name: Table 1
Sacrificial electron donor[edit | edit source]
In this study, triethylamine (TEA) was used as sacrificial electron donor.
Additives[edit | edit source]
In this study, no additives were used.
Investigations
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
