Synthesis of new CO2-soluble ruthenium(II) and cobalt(II) polypyridine complexes bearing fluorinated alkyl chains and their application to photoreduction of liq. CO2

Hirose, Takuji; Shigaki, Shuhei; Hirose, Makoto; Fushimi, Atsushi

doi:10.1016/j.jfluchem.2010.06.005

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…414,415 In contrast to WOCs, the development of earth-abundant metal-based CO 2 reduction molecular catalysts has been much more successful. 43,377,394 For Co-and Ni-based catalysts, besides complexes with common polypyridyl ligands, [416][417][418] tetraaza-macrocycle Co and Ni complexes, Co II (macrocycle) and Ni II (macrocycle), e.g., complexes 80 and 81, have been reported as efficient catalysts for CO 2 reduction. 370,379,[419][420][421][422][423] Although Ni II (macrocycle) has been reported with Faradaic efficiencies over 95% in the production of CO, its good selectivity is strongly dependent on the pH of the reaction solution, and the low TOF is its drawback.…”

Section: Overview Of Molecular Catalysts For Reduction Reactionsmentioning

confidence: 99%

Artificial photosynthesis: opportunities and challenges of molecular catalysts

2019

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Section: Overview Of Molecular Catalysts For Reduction Reactionsmentioning

confidence: 99%

Artificial photosynthesis: opportunities and challenges of molecular catalysts

2019

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“…CXLs even in dense phase CO 2 systems [20][21][22][23][24][25][26][27][28]. Mizuno et al studied the photoreduction of high pressure CO 2 with TiO 2 powder in aqueous solution [23][24][25][26].…”

Section: Reduction Inmentioning

confidence: 99%

Selective photoreduction of CO2 to CO in CO2-dissolved expanded liquid phase with heterogeneous CO2-philic Pd complex catalysts

Liu

Yoshida

Fujita

et al. 2013

Applied Catalysis A: General

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Novel CO 2 -philic Pd complexes, PdCl 2 [4,4'-bis(R f CH 2 OCH 2 )-2,2'-bpy] (bpy: 2,2'-bipyridine) where R f = n-C 10 F 21 , n-C 11 F 23 , were anchored onto a silica support modified with long fluorinated hydrocarbon chains (C 6 F 13 ) by mixing these complex and the support in DMSO at 413 K. These immobilized Pd complex catalysts were applied for the photoreduction of CO 2 in DMF or organic solvents using triethylamine as a hydrogen donor at 323 K. The rate of CO 2 reduction and the selectivity to CO were observed to depend on several factors including CO 2 pressure, solvent, Pd complex structure, and Pd loading. With the most active catalyst, the selective photoreduction of CO 2 to CO can be achieved in DMF at a CO 2 pressure of 4 MPa and the performance observed is much better compared to the literature results. The features of the supported 2 Pd complexes and the multiphase reaction media were characterized by UV-Vis absorption and others to discuss the reasons for their high performance.

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Photoelectrochemical CO₂ Reduction by a Molecular Cobalt(II) Catalyst on Planar and Nanostructured Si Surfaces

Tong

et al. 2016

Chemistry A European J

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In the presence of a molecular Co(II) catalyst, CO2 reduction occurred at much less negative potentials on Si photoelectrodes than on an Au electrode. The addition of 1 % H2 O significantly improved the performance of the Co(II) catalyst. Photovoltages of 580 and 320 mV were obtained on Si nanowires and a planar Si photoelectrode, respectively. This difference likely originated from the fact that the multifaceted Si nanowires are better in light harvesting and charge transfer than the planar Si surface.

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Synthesis of new CO2-soluble ruthenium(II) and cobalt(II) polypyridine complexes bearing fluorinated alkyl chains and their application to photoreduction of liq. CO2

Cited by 6 publications

References 27 publications

Artificial photosynthesis: opportunities and challenges of molecular catalysts

Artificial photosynthesis: opportunities and challenges of molecular catalysts

Selective photoreduction of CO2 to CO in CO2-dissolved expanded liquid phase with heterogeneous CO2-philic Pd complex catalysts

Photoelectrochemical CO₂ Reduction by a Molecular Cobalt(II) Catalyst on Planar and Nanostructured Si Surfaces

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Synthesis of new CO2-soluble ruthenium(II) and cobalt(II) polypyridine complexes bearing fluorinated alkyl chains and their application to photoreduction of liq. CO2

Cited by 6 publications

References 27 publications

Artificial photosynthesis: opportunities and challenges of molecular catalysts

Artificial photosynthesis: opportunities and challenges of molecular catalysts

Selective photoreduction of CO2 to CO in CO2-dissolved expanded liquid phase with heterogeneous CO2-philic Pd complex catalysts

Photoelectrochemical CO2 Reduction by a Molecular Cobalt(II) Catalyst on Planar and Nanostructured Si Surfaces

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Photoelectrochemical CO₂ Reduction by a Molecular Cobalt(II) Catalyst on Planar and Nanostructured Si Surfaces