Electrode kinetics of electroactive electropolymerized polymers deposited on graphite electrode surfaces

Chiba, Kazuyuki; Ohsaka, Takeo; Oyama, Noboru

doi:10.1016/0022-0728(87)80221-8

Cited by 106 publications

(35 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The process is fully catalyzed when the PoPD film contains electrodeposited platinum microparticles [35]. Considering that PoPD is a ladder polymer with phenazine units and has the permselective nature [36], thus, poly(o-aminophenol), PoAP, another polymer with ladder structure and phenoxazine units [37] seems can also exhibits similar properties toward the catalytic oxidation of methanol.…”

Section: Introductionmentioning

confidence: 98%

Electrocatalytic Oxidation of Methanol at Lower Potentials on Glassy Carbon Electrode Modified by Platinum and Platinum Alloys Incorporated in Poly(o‐Aminophenol) Film

Golabi

Nozad

2003

Electroanalysis

View full text Add to dashboard Cite

The electrocatalytic oxidation of methanol at a glassy carbon electrode modified by a thin film of poly(oaminophenol) (PoAP) containing Pt, Pt-Ru and Pt-Sn microparticles has been investigated using cyclic voltammetry as analytical technique and 0.10 M perchloric acid as supporting electrolyte. It has been shown that the presence of PoAP film increases considerably the efficiency of deposited Pt microparticles toward the oxidation of methanol. The catalytic activity of Pt particles is further enhanced when Ru or specially Sn is co-deposited in the polymer film. The effects of various parameters such as the thickness of polymer film, concentration of methanol, medium temperature as well as the long term stability of modified electrodes have also been investigated.

show abstract

Section: Introductionmentioning

confidence: 98%

Electrocatalytic Oxidation of Methanol at Lower Potentials on Glassy Carbon Electrode Modified by Platinum and Platinum Alloys Incorporated in Poly(o‐Aminophenol) Film

Golabi

Nozad

2003

Electroanalysis

View full text Add to dashboard Cite

show abstract

“…The electro-oxidation of both m-phenylenediamine (m-PD) and o-phenylenediamine (o-PD) produces polymeric films [35]. m-Phenylenediamine polymers could present two structures including rigid rod-like ladder or network type, depending on the coupling orientation in the m-PD monomer [35,42] [43][44][45] to form an electroactive film. The poly(o-phenylenediamine (Po-PD) is a ladder polymer [46] with structure and properties closely related to those of poly(o-aminophenol) [9,12].…”

Section: Introductionmentioning

confidence: 99%

Spectroelectrochemical study of the oxidation of diaminophenols on platinum electrodes in acidic medium

Salavagione

Arias

Garcés

et al. 2005

Electrochimica Acta

View full text Add to dashboard Cite

The electrochemical oxidation of 2,3-2,4-and 2,5-diaminophenol, on platinum electrode, in acid medium was studied using cyclic voltammetry, in situ UV-vis and in situ FTIR spectroscopies. The spectroscopic data indicates that 2,4-diaminophenol suffers hydrolysis giving the formation of 2-amino-hydroquinone/2-amino-p-benzoquinone in solution. The oxidation mechanism of 2,5-diaminophenol is similar to the p-phenylenediamine giving 2-hydroxy-p-benzoquinoneimine and its hydrolysis product, 2-hydroxy-p-benzoquinone. The electrochemical results suggest that 2,3-diaminophenol generates a non-electroactive polymeric material on the electrode surface.

show abstract

“…The experiment results showed the formic oxidation on the Pd-TiO 2 /C electrode is a completely irreversible kinetic process; The low values of a = 0.40 (\0.5) indicated the slow kinetic process for formic acid oxidation on the Pd-TiO 2 /C electrode; The diffusion coefficient of formic acid (D), obtained in the present work is 1.8 9 10 -7 cm 2 s -1 , which has the same order of magnitude with the diffusion coefficient of methanol in water in very thin bulk solution [35]; Formic acid oxidation was sensitive to temperature at relatively high potential, for the activation energy (E a ) of formic acid oxidation on the Pd-TiO 2 /C electrocatalyst was increased with the increasing of potential. …”

Section: Discussionmentioning

confidence: 64%

Kinetic Study of Formic Acid Oxidation on Highly Dispersed Carbon Supported Pd–TiO2 Electrocatalyst

Gao

et al. 2009

Catal Lett

View full text Add to dashboard Cite

The highly dispersed carbon supported Pd-TiO 2 catalyst was prepared by a liquid phase reduction method with intermittent microwave irradiation. The kinetic parameters, such as the charge transfer parameter (a) and the apparent diffusion coefficient (D) of formic acid electrooxidation on a carbon supported Palladium Titanium dioxide (Pd-TiO 2 /C) electrode were obtained under the quasi steady-state conditions. The dependence on temperature of the formic oxidation at a Pd-TiO 2 /C electrode was also investigated and the activation energy (E a ) at different potentials was obtained.

show abstract

Electrode kinetics of electroactive electropolymerized polymers deposited on graphite electrode surfaces

Cited by 106 publications

References 84 publications

Electrocatalytic Oxidation of Methanol at Lower Potentials on Glassy Carbon Electrode Modified by Platinum and Platinum Alloys Incorporated in Poly(o‐Aminophenol) Film

Electrocatalytic Oxidation of Methanol at Lower Potentials on Glassy Carbon Electrode Modified by Platinum and Platinum Alloys Incorporated in Poly(o‐Aminophenol) Film

Spectroelectrochemical study of the oxidation of diaminophenols on platinum electrodes in acidic medium

Kinetic Study of Formic Acid Oxidation on Highly Dispersed Carbon Supported Pd–TiO2 Electrocatalyst

Contact Info

Product

Resources

About