Photochemical CO2 Reduction Driven by Water-Soluble Copper(I) Photosensitizer with the Catalysis Accelerated by Multi-Electron Chargeable Cobalt Porphyrin: Difference between revisions

Latest revision as of 11:43, 21 November 2025

Abstract[edit | edit source]

This study introduces a fully aqueous photochemical CO₂ reduction system that uses a water-soluble copper(I) photosensitizer (CuPS)100987 and a cobalt porphyrin catalyst (CoTMPyP). The system achieves high turnover numbers and selectivity for CO₂-to-CO conversion, outperforming other aqueous systems. The multi-electron chargeable property of CoTMPyP is key to its catalytic efficiency and selectivity.

Summary[edit | edit source]

A cop per(I) diimine complex serves as an efficient, water-soluble photosensitizer, enabling visible-light-driven CO₂-to-CO conversion in aqueous media. This system incorporates CoTMPyP, a cobalt porphyrin catalyst, achieving unprecedented catalytic performance. Key advances include a high turnover number (TON) and fast catalytic rates due to the multi-electron redox properties of CoTMPyP. The study demonstrates the potential of combining earth-abundant materials for sustainable photochemical CO₂ reduction.

Additional Remarks[edit | edit source]

The research underscores the importance of designing water-compatible, earth-abundant photocatalytic systems. CoTMPyP's multi-electron storage capability enables rapid intramolecular electron transfer, improving CO release. The CuPS-CoTMPyP system provides insights into addressing challenges like H₂ competition in aqueous CO₂ reduction systems.

Content of the Published Article in Detail[edit | edit source]

Design and preparation of the copper(I) photosensitizer CuPS.
Photochemical studies demonstrating the CO₂ reduction mechanism in aqueous systems.
Role of the multi-electron chargeable CoTMPyP in accelerating catalysis.
Experimental results showing high TON and TOF under optimized conditions.
Discussion of reaction selectivity, including negligible formation of undesired byproducts such as HCOOH.

Catalysts Tested in This Study[edit | edit source]

CoTMPyP: A cobalt porphyrin catalyst with high catalytic efficiency (right).
CoTPPS: Another cobalt porphyrin derivative used for comparison, with lower activity and selectivity compared to CoTMPyP (left) 100985.

100985 100986

Photosensitizer[edit | edit source]

The copper(I) photosensitizer CuPS ([Cu(L1)(L2)]BF4), where L1 and L2 are ligands, features long-lived excited states, making it highly efficient in driving photochemical CO₂ reduction in aqueous media.

100987

Investigation[edit | edit source]

The study involved kinetic analysis of CO and H₂ production under various conditions. Control experiments confirmed the roles of CuPS, CoTMPyP, and ascorbate. The performance was evaluated by quantum yield and CO selectivity metrics, with additional insights provided by structural characterization of intermediates.

	cat	cat conc [µM]	PS	PS conc [mM]	e-D	e-D conc [M]	solvent A	additives	.	.	.	.	TON CO	TON CH4	.
1.	Molecule:100985	5	Molecule:100987	500	Molecule:100989	0.1	H2O	NaHCO3					1085	127
2.	Molecule:100988	5	Molecule:100987	500	Molecule:100989	0.1	H2O	NaHCO3					2680	820

Investigation-Name: Tabel 1

Further Information[edit | edit source]

The findings highlight the influence of ligand design in CuPS and the impact of peripheral groups in CoTMPyP. Future applications might involve integrating such catalysts into hybrid systems or scaling them for industrial CO₂ reduction.

Sacrificial Electron Donor[edit | edit source]

In this study, the sacrificial electron donor was sodium ascorbate (AscHNa), which facilitated efficient electron transfer to drive the CO₂ reduction reaction.

Additives[edit | edit source]

Additives such as bicarbonate buffer were used to maintain the pH and reaction environment, ensuring stability and efficiency of the photocatalytic system.

Tags: photochemical CO₂ reduction, aqueous photocatalysis, visible-light catalysis, copper(I) photosensitizer, CuPS, cobalt porphyrin catalyst, CoTMPyP, CO evolution, artificial photosynthesis, earth-abundant metals, homogeneous catalysis, multi-electron transfer, high TON/TOF, sodium ascorbate sacrificial donor, bicarbonate buffer

Investigations

Tabel 1 (Molecular process, Photocatalytic CO2 conversion experiments)

DOI	10.1021/acscatal.9b04023
Authors	Xian Zhang, Mihaela Cibian, Arnau Call, Kosei Yamauchi, Ken Sakai,
Submitted	28.10.2019
Published online	28.10.2019
Licenses	https://doi.org/10.15223/policy-029, https://doi.org/10.15223/policy-037, https://doi.org/10.15223/policy-045,
Subjects	-
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Photochemical CO2 Reduction Driven by Water-Soluble Copper(I) Photosensitizer with the Catalysis Accelerated by Multi-Electron Chargeable Cobalt Porphyrin: Difference between revisions

Latest revision as of 11:43, 21 November 2025

Contents

Abstract[edit | edit source]

Summary[edit | edit source]

Additional Remarks[edit | edit source]

Content of the Published Article in Detail[edit | edit source]

Catalysts Tested in This Study[edit | edit source]

Photosensitizer[edit | edit source]

Investigation[edit | edit source]

Further Information[edit | edit source]

Sacrificial Electron Donor[edit | edit source]

Additives[edit | edit source]

Investigations

Topics

@@ Line 4: / Line 4: @@
 === Abstract ===
-This study introduces a fully aqueous photochemical CO₂ reduction system that uses a water-soluble copper(I) photosensitizer (CuPS){{#moleculelink:|link=PDVCFPPNDZGLBQ-UHFFFAOYSA-L|image=false|width=300|height=200}} and a cobalt porphyrin catalyst (CoTMPyP). The system achieves high turnover numbers and selectivity for CO₂-to-CO conversion, outperforming other aqueous systems. The multi-electron chargeable property of CoTMPyP is key to its catalytic efficiency and selectivity.
+This study introduces a fully aqueous photochemical CO₂ reduction system that uses a water-soluble copper(I) photosensitizer (CuPS){{#moleculelink: |link=GPJHXPCFGPLTHZ-UHFFFAOYSA-L|image=false|width=300|height=200}} and a cobalt porphyrin catalyst (CoTMPyP). The system achieves high turnover numbers and selectivity for CO₂-to-CO conversion, outperforming other aqueous systems. The multi-electron chargeable property of CoTMPyP is key to its catalytic efficiency and selectivity.
 [[Category:Publication]]
 === Summary ===
@@ Line 25: / Line 25: @@
 * '''CoTMPyP:''' A cobalt porphyrin catalyst with high catalytic efficiency (right).
-* '''CoTPPS:''' Another cobalt porphyrin derivative used for comparison, with lower activity and selectivity compared to CoTMPyP (left) {{#moleculelink:|link=OIPFTFWKVIYBSF-UHFFFAOYSA-N|image=false|width=300|height=200}}.
+* '''CoTPPS:''' Another cobalt porphyrin derivative used for comparison, with lower activity and selectivity compared to CoTMPyP (left) {{#moleculelink: |link=LKGFMTVNMUURDY-UHFFFAOYSA-N|image=false|width=300|height=200}}.
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 The copper(I) photosensitizer CuPS ([Cu(L1)(L2)]BF4), where L1 and L2 are ligands, features long-lived excited states, making it highly efficient in driving photochemical CO₂ reduction in aqueous media.
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-M  V30 COUNTS 87 100 10 0 0
+M  V30 COUNTS 96 104 6 0 0
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@@ Line 356: / Line 408: @@
 M  V30 15 C -0.410401 2.07581 0.0 0
 M  V30 16 C -0.410401 -2.0635 0.0 0
-M  V30 17 Cu 1.45104 -0.076391 0.0 0
+M  V30 17 Cu 1.45104 -0.076391 0.0 0 CHG=1
 M  V30 18 C 6.5811 0.015442 0.0 0
 M  V30 19 C 6.1671 0.458868 0.0 0
@@ Line 427: / Line 479: @@
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+M  V30 88 B 1.21699 -3.525 0.0 0 CHG=-1
+M  V30 89 F 2.08301 -3.025 0.0 0
+M  V30 90 F 1.21699 -2.525 0.0 0
+M  V30 91 F 0.251061 -3.78382 0.0 0
+M  V30 92 F 1.92409 -4.23211 0.0 0
+M  V30 93 Na 8.1 2.5 0.0 0 CHG=1
+M  V30 94 Na 7.875 -1.975 0.0 0 CHG=1
+M  V30 95 Na -4.625 -1.75 0.0 0 CHG=1
+M  V30 96 Na -4.5 1.925 0.0 0 CHG=1
 M  V30 END ATOM
 M  V30 BEGIN BOND
@@ Line 529: / Line 590: @@
 M  V30 99 8 4 17
 M  V30 100 8 14 17
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 M  V30 000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -
 M  V30 0.000000) LABEL=Ph
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-M  V30 00000 0.000000 0.000000 0.000000 0.000000 0.000000) BRKXYZ=(9 0.000000-
-M  V30  0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.0000-
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-M  V30 00) LABEL="SO3-"
-M  V30 9 SUP 9 ATOMS=(4 80 81 82 83) BRKXYZ=(9 0.000000 0.000000 0.000000 0.0-
-M  V30 00000 0.000000 0.000000 0.000000 0.000000 0.000000) BRKXYZ=(9 0.000000-
-M  V30  0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.0000-
-M  V30 00) LABEL="SO3-"
-M  V30 10 SUP 10 ATOMS=(4 84 85 86 87) BRKXYZ=(9 0.000000 0.000000 0.000000 0-
-M  V30 .000000 0.000000 0.000000 0.000000 0.000000 0.000000) BRKXYZ=(9 0.0000-
-M  V30 00 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.00-
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@@ Line 590: / Line 639: @@
 Additives such as bicarbonate buffer were used to maintain the pH and reaction environment, ensuring stability and efficiency of the photocatalytic system.
 [[Category:Photocatalytic CO2 conversion]]
+{{Tags|tags=photochemical CO₂ reduction, aqueous photocatalysis, visible-light catalysis, copper(I) photosensitizer, CuPS, cobalt porphyrin catalyst, CoTMPyP, CO evolution, artificial photosynthesis, earth-abundant metals, homogeneous catalysis, multi-electron transfer, high TON/TOF, sodium ascorbate sacrificial donor, bicarbonate buffer}}

Photochemical CO2 Reduction Driven by Water-Soluble Copper(I) Photosensitizer with the Catalysis Accelerated by Multi-Electron Chargeable Cobalt Porphyrin: Difference between revisions

Latest revision as of 11:43, 21 November 2025

Abstract[edit | edit source]

Summary[edit | edit source]

Additional Remarks[edit | edit source]

Content of the Published Article in Detail[edit | edit source]

Catalysts Tested in This Study[edit | edit source]

Photosensitizer[edit | edit source]

Investigation[edit | edit source]

Further Information[edit | edit source]

Sacrificial Electron Donor[edit | edit source]

Additives[edit | edit source]

Investigations

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