Electrocatalytic activity of CoII TPP-pyridine complex modified carbon electrode for CO2 reduction

Atoguchi, Takashi; Aramata, Akiko; Kazusaka, Akio; Enyo, M.

doi:10.1016/0022-0728(91)85312-d

Cited by 72 publications

(46 citation statements)

References 21 publications

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“…However, there are some studies that support the idea that for nitrite determination, the GC is active without producing any complex modification on its surface. Compton et al, who established that the GC is already a good sensor for nitrite since it has a large number of active sites, supports this theory [6,7], but in this work, it was found that when a GC is involved in an oxidation process, it is possible to generate more oxidized functional groups on its surface [8], being more electroactive toward nitrite than the bare GC (Fig. 1).…”

Section: Introductionsupporting

confidence: 63%

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Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

et al. 2014

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In this work, a simple and innovative method is proposed to get an active glassy carbon electrode (GC) toward nitrite oxidation. The oxidation method was based on an anodic treatment, through a time-and potential-controlled electrolysis, in NaOH 0.1 M. This treatment increased the activity in all pH values that were studied, being the pH 8.0 as the best one. It was possible to calculate the kinetic parameters, where the number of transferred electrons calculated was one, and Tafel slope was 70 mV per decade. With these values, a reaction mechanism was postulated. At the best experimental conditions, the electrode has a good behavior as an amperometric sensor versus nitrite oxidation. The system follows linearity in all the range of concentrations and allowed the calculation of analytical parameters such as detection limit, quantification limit, accuracy, and exactitude. Good results were obtained at this point, so the system might be considered a good method for nitrite determination and quantification in aqueous solutions.

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Section: Introductionsupporting

confidence: 63%

“…1) that definitely are new active sites in which the nitrite oxidation is produced. These new active sites mean a reaction area growth [8]. For this reason, the reaction requires less energy to happen because it is catalyzed by these new functional groups.…”

Section: Resultsmentioning

confidence: 99%

Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

et al. 2014

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“…First, individual pyridine residues of P4VP can coordinate to the square planar cobalt center of CoPc . Axial coordination of pyridine has been implicated in enhanced CO 2 RR activity for CoPc and cobalt porphyrin catalysts 25,26,28,33,34. Second, the uncoordinated pyridine residues throughout the membrane, which form the secondary and outer coordination spheres of CoPc , also may contribute to the increased activity.…”

Section: Introductionmentioning

confidence: 99%

Polymer coordination promotes selective CO₂reduction by cobalt phthalocyanine

2016

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“…It is also important to note that besides application in electroanalysis [9±12], CMEs have also played an important role in the studies of electrocatalysis [2,3], kinetics of electron transfer [4], permeation of membrane [5,6], electrorganic synthesis [7,8], etc.…”

Section: Introductionmentioning

confidence: 99%

Surface Complexation of Copper(II) with Alizarin Red S Adsorbed on a Graphite Electrode and Its Possible Application in Electroanalysis

et al. 1999

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Alizarin red S (ARS) has been used previously as a spectrophotometric reagent for several metals. It has been also employed as an electrode modi®er agent for voltammetric analysis. With the purpose of studying the electrochemistry of the adsorbed ARS ligand and the surface ARS-copper(II) complex, on the pyrolytic graphite electrode, cyclic voltammetric experiments were carried out in open and closed circuits. The results indicate that ARS is strongly and irreversibly adsorbed on the electrode surface. This adsorption process was employed to immobilize, by complexation, copper ions from the solution, and for a possible application of the ARS modi®ed electrode in trace copper electroanalysis are explored in this article. The optimization for trace copper determination in aqueous solution was accomplished by anodic stripping voltammetric technique (differential pulse mode); the preconcentration potential was 7 0.40 V; pH was 5.3 and accumulation time was 2 minutes. Under these conditions, the detection limit was 1.7610 78 mol L 71, and a linear range from 1.0610 77 to 4.0610 76 mol L 71.

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Electrocatalytic activity of CoII TPP-pyridine complex modified carbon electrode for CO2 reduction

Cited by 72 publications

References 21 publications

Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

Polymer coordination promotes selective CO₂reduction by cobalt phthalocyanine

Surface Complexation of Copper(II) with Alizarin Red S Adsorbed on a Graphite Electrode and Its Possible Application in Electroanalysis

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Electrocatalytic activity of CoII TPP-pyridine complex modified carbon electrode for CO2 reduction

Cited by 72 publications

References 21 publications

Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

Electro-Oxidation of Nitrite Using an Oxidized Glassy Carbon Electrode as Amperometric Sensor

Polymer coordination promotes selective CO2reduction by cobalt phthalocyanine

Surface Complexation of Copper(II) with Alizarin Red S Adsorbed on a Graphite Electrode and Its Possible Application in Electroanalysis

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Product

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Polymer coordination promotes selective CO₂reduction by cobalt phthalocyanine