Electrocatalytic reduction of O2 and CO2 with electropolymerized films of polypyrrole cobalt(II) Schiff-base complexes

Losada, José; Peso, Isabel del; Beyer, L.; Hartung, J.; Fernandez, V.; Möbius, M.

doi:10.1016/0022-0728(95)04155-6

Cited by 26 publications

(9 citation statements)

References 18 publications

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“…In addition, polypyrrole Co(II) Schiff-base complexes were electropolymerized on a polished GCE to catalyze CO 2 reduction. 138 The corresponding structures of the above catalysts are given in Table 5-(T2). However, the most studied systems seemed to be iron-based complexes.…”

Section: Copyright R 1985 Crc Pressmentioning

confidence: 99%

A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels

et al. 2014

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This paper reviews recent progress made in identifying electrocatalysts for carbon dioxide (CO2) reduction to produce low-carbon fuels, including CO, HCOOH/HCOO(-), CH2O, CH4, H2C2O4/HC2O4(-), C2H4, CH3OH, CH3CH2OH and others. The electrocatalysts are classified into several categories, including metals, metal alloys, metal oxides, metal complexes, polymers/clusters, enzymes and organic molecules. The catalyts' activity, product selectivity, Faradaic efficiency, catalytic stability and reduction mechanisms during CO2 electroreduction have received detailed treatment. In particular, we review the effects of electrode potential, solution-electrolyte type and composition, temperature, pressure, and other conditions on these catalyst properties. The challenges in achieving highly active and stable CO2 reduction electrocatalysts are analyzed, and several research directions for practical applications are proposed, with the aim of mitigating performance degradation, overcoming additional challenges, and facilitating research and development in this area.

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Section: Copyright R 1985 Crc Pressmentioning

confidence: 99%

A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels

et al. 2014

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“…Salen, as one kind of Schiff base complex, has shown large applications in reduction of ketones to alcohols and alkylation of allylic substrates [10], while the Co and Ni Schiff-base or tetra-azamacrocycle complexes are found to be effective for the electrocatalytic reduction of CO 2 [11,12]. The electropolymerized films of polypyrrole cobalt(II) Schiff-base complexes have also been proven to be catalytically active in the electroreduction of both CO 2 and oxygen [13]. For improving the kinetics for CO 2 reduction, increasing the surface area and reducing the electrode interface resistance are two fatal factors that would affect the electrocatalytic activity in CO 2 reduction performance [3,[6][7][8].…”

Section: Introductionmentioning

confidence: 96%

Synergistic electrocatalysis of N,Nʹ-bis(salicylidene)-ethylenediamine-cobalt(II) and conductive carbon black (BP) for high efficient CO2 electroreduction

Liu

et al. 2015

J Solid State Electrochem

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Gas diffusion electrodes (GDEs) modified with N, N -Bis(salicylidene)-ethylenediamine-cobalt(II) (Cosalen) and conductive carbon black (BP) have been prepared. It is demonstrated that modified BP-Cosalen/GDE electrode is able to catalyze CO 2 reduction in a more efficient and selective manner than that of bulk Cosalen/GDE in 0.5 M KHCO 3 solution. In the presence of 60 wt% of BP, the as-prepared BPCosalen/GDE electrode exhibits the highest activity for catalyzing CO 2 reduction reaction, wherever increase or decrease the amount of BP do not benefit to CO 2 reduction. Compared to other BP-Cosalen/GDE electrodes, the BP-Cosalen/GDE60 shows the most positive onset potential, and the maximum current density reaches 21 mA cm −2 . The improved catalytic activity is largely due to the excellent electrical conductivity and the developed pore structure of BP which provides more active phases for the electrochemical reduction of CO 2 . Further analysis of reduction product reveals that the product on BP-Cosalen/GDE60 electrode is formate in 0.5 M KHCO 3 electrolyte. The highest faradaic efficiency reached 27 % along with the production rate of formate as much as 0.44 mM.

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“…This second case concerns the elaboration 2 Advances in Physical Chemistry of modified electrodes (ME) by covalent grafting of pyrrole or thiophene moieties via the etherification [37] or esterification [38] reactions involving a phenolic group. These materials for electrodes may also be used as amperometric sensors to detect various species: molecular dioxygen [39][40][41][42] and biomolecules like glucose [43][44][45]. Several studies have demonstrated the high efficiency of these electrocatalytic systems when operating in heterogeneous catalysis in a chemical-electrochemical pathway using modified electrodes based mainly upon organic polymer films containing the complex species covalently grafted as catalyst [35,38,46].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Electrochemical Study of Tetradentate Ruthenium‐Schiff Base Complexes: Dioxygen Activation with a Cytochrome P450 Model Using 1‐ or 2‐Methylimidazole as Axial Bases

Ourari

Khelafi

Aggoun

et al. 2011

Advances in Physical Chemistry

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Salicylaldehyde, 2-hydroxyacetophenone, and 3,5-dichlorosalicylaldehyde react with 1,2-diaminoethane to give three symmetrical Schiff bases H 2 L 1 , H 2 L 2 , and H 2 L 3 , respectively. With Ru(III) ions, these ligands lead to three complexes: Ru(III)ClL 1 (1), Ru(III)ClL 2 (2), and Ru(III)ClL 3 (3). The purity of these compounds was estimated by TLC technique and microanalysis while their structures were supported by the usual spectroscopic methods such as NMR, infrared, and electronic spectra. The cyclic voltammetry in acetonitrile showed irreversible waves for all three ligands. Under the same experimental conditions, it was proved that the ruthenium is coordinated in the three complexes 1, 2, and 3 showing quasireversible redox systems. The behavior of these complexes and their comparison with cytochrome P450 are investigated using them as catalysts in the presence of molecular oxygen with an apical nitrogen base: 1-or 2-methylimidazole.

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Electrocatalytic reduction of O2 and CO2 with electropolymerized films of polypyrrole cobalt(II) Schiff-base complexes

Cited by 26 publications

References 18 publications

A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels

A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels

Synergistic electrocatalysis of N,Nʹ-bis(salicylidene)-ethylenediamine-cobalt(II) and conductive carbon black (BP) for high efficient CO2 electroreduction

Synthesis, Characterization, and Electrochemical Study of Tetradentate Ruthenium‐Schiff Base Complexes: Dioxygen Activation with a Cytochrome P450 Model Using 1‐ or 2‐Methylimidazole as Axial Bases

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