A Dinuclear Cobalt Cryptate as a Homogeneous Photocatalyst for Highly Selective and Efficient Visible-Light Driven CO2 Reduction to CO in CH3CN-H2O Solution: Difference between revisions

From ChemWiki
No edit summary
m (added Publication category)
 
(9 intermediate revisions by 4 users not shown)
Line 1: Line 1:
{{#doiinfobox: 10.1002/ange.201610607}}
{{DOI|doi=10.1002/ange.201610607}}
[[Category:Photocatalytic CO2 conversion to CO]]
[[Category:Photocatalytic CO2 conversion to CO]]
{{BaseTemplate}}
{{BaseTemplate}}
=== Abstract ===
==== Summary ====
In this article CO<sub>2</sub> was reduced to CO by using the dinuclear cobalt catalyst {{#moleculelink:|link=PWANXUIOGIXQEQ-UHFFFAOYSA-J|image=false|width=300|height=200}} along with the photosensitizer {{#moleculelink:|link=YRYUXGTVQZIGNQ-UHFFFAOYSA-N|image=false|width=300|height=200}}. The photoreaction displayed a high TON of 16896 under 450 nm LED irradiation in 10 h. These good results are attributed to the synergetic effect of the two close cobalt atoms.
==== Advances and Special progress ====
This new catalyst displays high efficiency and a very good selectivity of 98% towards CO.
==== Additional remarks ====
=== Content of the published article in detail ===
This article emphasizes on the efficiency and selectivity of this new dinuclear complex as it is the first one with such good properties in photocatalysis, especially as it works in water containing conditions and shows good results also with only 10% CO<sub>2</sub> in atmosphere.


==== Catalyst ====
==== Catalyst ====
Line 288: Line 301:


==== Investigation ====
==== Investigation ====
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}}  {{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 2}}
{{#experimentlist: |form=Photocatalytic_CO2_conversion_experiments|name=Best result and control experiments}}


==== Sacrificial electron donor ====
==== Sacrificial electron donor ====
<chemform smiles="C(CO)N(CCO)CCO" inchi="1S/C6H15NO3/c8-4-1-7(2-5-9)3-6-10/h8-10H,1-6H2" inchikey="GSEJCLTVZPLZKY-UHFFFAOYSA-N" height="200px" width="300px" float="none">
In this study, the experiments were done with the sacrificial electron donor TEOA {{#moleculelink:|link=GSEJCLTVZPLZKY-UHFFFAOYSA-N|image=false|width=300|height=200}}.[[Category:Publication]]
  -INDIGO-07282314352D
 
  0  0  0  0  0  0  0  0  0  0  0 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 10 9 0 0 0
M  V30 BEGIN ATOM
M  V30 1 C 6.06699 -5.65 0.0 0
M  V30 2 N 6.93301 -5.15 0.0 0
M  V30 3 C 7.79904 -5.65 0.0 0
M  V30 4 C 6.93301 -4.15 0.0 0
M  V30 5 C 7.79904 -3.65 0.0 0
M  V30 6 O 7.79904 -2.65 0.0 0
M  V30 7 C 7.79904 -6.65 0.0 0
M  V30 8 O 8.66506 -7.15 0.0 0
M  V30 9 C 5.20096 -5.15 0.0 0
M  V30 10 O 4.33494 -5.65 0.0 0
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 1 1 2
M  V30 2 1 2 3
M  V30 3 1 2 4
M  V30 4 1 4 5
M  V30 5 1 5 6
M  V30 6 1 3 7
M  V30 7 1 7 8
M  V30 8 1 1 9
M  V30 9 1 9 10
M  V30 END BOND
M  V30 END CTAB
M  END
</chemform>

Latest revision as of 10:37, 11 April 2024


Abstract[edit | edit source]

Summary[edit | edit source]

In this article CO2 was reduced to CO by using the dinuclear cobalt catalyst 100776 along with the photosensitizer [Ru(phen)3][PF6]2. The photoreaction displayed a high TON of 16896 under 450 nm LED irradiation in 10 h. These good results are attributed to the synergetic effect of the two close cobalt atoms.

Advances and Special progress[edit | edit source]

This new catalyst displays high efficiency and a very good selectivity of 98% towards CO.

Additional remarks[edit | edit source]

Content of the published article in detail[edit | edit source]

This article emphasizes on the efficiency and selectivity of this new dinuclear complex as it is the first one with such good properties in photocatalysis, especially as it works in water containing conditions and shows good results also with only 10% CO2 in atmosphere.

Catalyst[edit | edit source]

100776

Photosensitizer[edit | edit source]

[Ru(phen)3][PF6]2

Investigation[edit | edit source]

catcat conc [µM]PSPS conc [mM]e-De-D conc [M]solvent A..additives..λexc [nm].TON CO.TON H2..
1.

Molecule:100776

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

300

MeCN

450 nm (LED, 100 mW.cm^-2)16896368
2.

Molecule:100776

0.0005

[Ru(phen)3][PF6]2

0.4

TEOA

300

MeCN

CO2/Ar (10:90) atmosphere450 nm (LED, 100 mW.cm^-2)68456
3.


[Ru(phen)3][PF6]2

0.4

TEOA

300

MeCN

450 nm (LED, 100 mW.cm^-2)
4.

Molecule:100776

0.000025


TEOA

300

MeCN

450 nm (LED, 100 mW.cm^-2)
5.

Molecule:100776

0.000025

[Ru(phen)3][PF6]2

0.4


MeCN

450 nm (LED, 100 mW.cm^-2)
6.

Molecule:100776

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

300

MeCN

7.

Molecule:100776

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

300

MeCN

Argon atmosphere450 nm (LED, 100 mW.cm^-2)
Investigation-Name: Best result and control experiments

Sacrificial electron donor[edit | edit source]

In this study, the experiments were done with the sacrificial electron donor TEOA TEOA.

Investigations

Retrieved from "https://chemwiki.scc.kit.edu/main/mediawiki/index.php?title=A_Dinuclear_Cobalt_Cryptate_as_a_Homogeneous_Photocatalyst_for_Highly_Selective_and_Efficient_Visible-Light_Driven_CO2_Reduction_to_CO_in_CH3CN-H2O_Solution&oldid=7157"
Powered by MediaWiki
Powered by Semantic MediaWiki