Electrocatalysis of Nitric Oxide Reduction by Water-Soluble Cobalt Porphyrin. Spectral and Electrochemical Studies

Cheng, Shu‐Hua; Su, Yuhlong Oliver

doi:10.1021/ic00103a037

Cited by 98 publications

(94 citation statements)

References 4 publications

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“…Porphyrins have been used extensively for the electrochemical reduction of nitrite [26][27][28][29] but an unwanted side product of hydroxylamine is formed. Redox polymer films have also been utilised in nitrite reduction [30], but the polymer film formed was found to swell when immersed in electrolyte solution.…”

Section: Cyclic Voltammetry Of Multilayer System In the Presence Of Smentioning

confidence: 99%

Assembly, electrochemical characterisation and electrocatalytic ability of multilayer films based on [Fe(bpy)3]2+, and the Dawson heteropolyanion, [P2W18O62]6−

Fay¹,

Dempsey²,

McCormac³

2005

Journal of Electroanalytical Chemistry

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Abstractimmobilise up to thirty monolayers, with the system exhibiting well behaved redox behaviour. The stability of the assembly towards redox switching was investigated, with it being found be extremely stable once the outer layer is anionic in nature. The 2 immobilised film was also tested for electrocatalytic activity for the reduction of nitrite, hydrogen peroxide and bromate, and was shown to be an efficient electrocatalyst.

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Section: Cyclic Voltammetry Of Multilayer System In the Presence Of Smentioning

confidence: 99%

Assembly, electrochemical characterisation and electrocatalytic ability of multilayer films based on [Fe(bpy)3]2+, and the Dawson heteropolyanion, [P2W18O62]6−

Fay¹,

Dempsey²,

McCormac³

2005

Journal of Electroanalytical Chemistry

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“…Beside immobilized iron and manganese porphyrins, cobalt complexes were also been investigated due to their promising functions as catalysts or selective complexing centers via axial ligation reactions. The latter were, for instance, successfully exploited for the study of phenol interaction [13], oxygen or NO reduction [14,15] and the detection of organohalide pollutants or nitrite [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite

Cosnier

Gondran

Wessel

et al. 2003

Sensors

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Abstract:The electrochemical properties of a new Co(II) deuteroporphyrin substituted by two electropolymerizable pyrrole groups has been investigated in organic solvent. This functionalization has allowed the preparation of the first example of a cobalt deuteroporphyrin film by oxidative electropolymerization. The resulting conducting polypyrrole film exhibits the regular electroactivity of cobalt deuteroporphyrin. Compared to conventional cobalt porphyrin electrochemistry, the replacement of porphyrin macrocycle by deuteroporphyrin ring results in markedly more negative potential values for the metalcentered oxidation and reduction processes. The influence of NO 2 -as axial ligand on the reductive behavior of the electropolymerized cobalt (II) deuteroporphyrin is examined. The recognition properties of the film illustrated by the potentiometric shift of the Co(II)/(I) reduction were exploited for the determination of NO 2 -in the concentration range 2 10 -6 -2.5 10 -4 M.

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“…The electroreduction of nitrite at most electrode surfaces requires a large overpotential, but it has been previously shown to be catalyzed by metallated porphyrins [1][2][3][4]. Being catalytic analogues to porphyrins, monosubstituted polyoxometalates (POMs) have the additional advantage of thermal stability, robustness and inertness towards oxidizing environments.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalysis by crown-type polyoxometalates multi-substituted by transition metal ions; Comparative study

Naseer

Mal

Kortz

et al. 2015

Electrochimica Acta

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The difference in electrochemical properties of three crown-type polyoxometalates multisubstituted by Fe 3+ , Ni 2+ or Co 2+ ions and their precursor has been rationalized with respect to their electrocatalytic performances studied in solution and in the immobilized state within the layer-by-layer film formed with a positively charged pentaerythritol-based Ru(II)-metallodendrimer. The film assembly was monitored with electrochemical methods and characterized by surface analysis techniques. An influence of the terminal layer on the electrode reaction and on film porosity has been observed. The electrocatalytic performance of the compounds on nitrite reduction was assessed in solution and in the immobilized state.

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Electrocatalysis of Nitric Oxide Reduction by Water-Soluble Cobalt Porphyrin. Spectral and Electrochemical Studies

Cited by 98 publications

References 4 publications

Assembly, electrochemical characterisation and electrocatalytic ability of multilayer films based on [Fe(bpy)3]2+, and the Dawson heteropolyanion, [P2W18O62]6−

Assembly, electrochemical characterisation and electrocatalytic ability of multilayer films based on [Fe(bpy)3]2+, and the Dawson heteropolyanion, [P2W18O62]6−

A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite

Electrocatalysis by crown-type polyoxometalates multi-substituted by transition metal ions; Comparative study

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