Mechanistic and Kinetic Studies of Cobalt Macrocycles in a Photochemical CO2 Reduction System: Evidence of Co-CO2 Adducts as Intermediates

Ogata, Tomoyuki; Yanagida, Shozo; Brunschwig, Bruce S.; Fujita, Etsuko

doi:10.1021/ja00130a009

Cited by 172 publications

(123 citation statements)

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“…[15,17,47,48] Yanagida et al reported that Co III cyclam complex C4 reduced CO 2 to CO and formate in ap hotocatalytic system containing p-terphenyl (P2)a sP Sa nd triethanolamine (TEOA) as SED in CO 2 -saturated CH 3 CN/CH 3 OH mixed solvent (Table 1, entry 4). [17] The quantum yields (QY) measured at 313 nm were www.chemsuschem.org 0.15 and 0.10 for CO and formatep roduction, respectively. However,t he system suffered from al imited TON (TON CO + formate = 16.9).…”

Section: Molecular Systemsmentioning

confidence: 99%

Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Wang

2017

ChemSusChem

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The conversion of CO2 into fuels or value‐added chemicals is currently a field of great research interest. Molecular cobalt catalysts have long been used as mediators of reductive transformations of CO2. In this Minireview, the cobalt complex‐based photocatalytic and photoelectrocatalytic systems for CO2 reduction are discussed and summarized, alongside progress on the design of new molecular cobalt catalysts and their performance in photocatalysis.

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Section: Molecular Systemsmentioning

confidence: 99%

Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Wang

2017

ChemSusChem

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“…The efficiency in terms of i (CO 2 ) / i (N 2 ) ratio was 1.10 (Table III). Upon passing N 2 back to the same solution, the original CV reappeared, implying the catalytic activity of [Ni(Salen)] [1]- [12].…”

Section: A Electrocatalytic Activity Of the [Ni(salen)] Complexmentioning

confidence: 99%

“…However, no such studies are reported for CO 2 reduction. It has been reported that Schiff base complexes similar to [Ni(Salen)] convert CO 2 into useful products [2]- [12] such as oxalate or formate [2]- [5]. The work reported herein presents a modified procedure to synthesize [Ni(Salen)] and its catalytic activity for the reduction of CO 2 in DMF at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Activity of (Bis(salicylaldehyde)ethylenediamino)Ni(II) Complex for CO2 Reduction

Peiris¹,

Udugala-Ganehenege²

2015

IJESD

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“…The interactions of CO 2 with cobalt complexes can be described as follows: [20,35] The procedure is initiated with the Scheme 1. Mechanism of CO 2 conversion in the photocatalysis system composed of an electron mediator and photocatalysts under light irradiation.…”

Section: A C H T U N G T R E N N U N G (Bpy) 3 ]mentioning

confidence: 99%

Integration of [(Co(bpy)₃]²⁺ Electron Mediator with Heterogeneous Photocatalysts for CO₂ Conversion

Lin

Hou

Zheng

et al. 2014

Chemistry An Asian Journal

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An efficient chemical system for electron generation and transfer is constructed by the integration of an electron mediator ([Co(bpy)3](2+); bpy=2,2'-bipyridine) with semiconductor photocatalysts. The introduction of [Co(bpy)3](2+) remarkably enhances the photocatalytic activity of pristine semiconductor photocatalysts for heterogeneous CO2 conversion; this is attributable to the acceleration of charge separation. Of particular interest is that the excellent photocatalytic activity of heterogeneous catalysts can be developed as a universal photocatalytic CO2 reduction system. The present findings clearly demonstrate that the integration of an electron mediator with semiconductors is a feasible process for the design and development of efficient photochemical systems for CO2 conversion.

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Mechanistic and Kinetic Studies of Cobalt Macrocycles in a Photochemical CO2 Reduction System: Evidence of Co-CO2 Adducts as Intermediates

Cited by 172 publications

References 2 publications

Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Electrocatalytic Activity of (Bis(salicylaldehyde)ethylenediamino)Ni(II) Complex for CO2 Reduction

Integration of [(Co(bpy)₃]²⁺ Electron Mediator with Heterogeneous Photocatalysts for CO₂ Conversion

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Mechanistic and Kinetic Studies of Cobalt Macrocycles in a Photochemical CO2 Reduction System: Evidence of Co-CO2 Adducts as Intermediates

Cited by 172 publications

References 2 publications

Artificial Photosynthetic Systems for CO2 Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Artificial Photosynthetic Systems for CO2 Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Electrocatalytic Activity of (Bis(salicylaldehyde)ethylenediamino)Ni(II) Complex for CO2 Reduction

Integration of [(Co(bpy)3]2+ Electron Mediator with Heterogeneous Photocatalysts for CO2 Conversion

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Product

Resources

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Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Artificial Photosynthetic Systems for CO₂ Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts

Integration of [(Co(bpy)₃]²⁺ Electron Mediator with Heterogeneous Photocatalysts for CO₂ Conversion