Kinetic parameters and mechanism of the electrochemical oxidation of L-ascorbic acid on platinum electrodes in acid solutions

Karabinas, P.; Jannakoudakis, D.

doi:10.1016/s0022-0728(84)80122-9

Cited by 110 publications

(44 citation statements)

References 24 publications

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“…The fundamental electrode kinetics have been examined at a range of electrode surfaces [24][25][26][27][28][29][30]. These metallic electrodes do not function well for amperometric senor devices for the detection of ascorbic acid, primarily due to the fouling of the electrode surface by the oxidative products along with the kinetics of the electron transfer being sluggish in nature.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric behaviour, homogeneous charge transport dynamics and electrocatalytic properties of an Os2+ functionalised pyrrole monomer

Foster¹,

Allen²,

McCormac³

2004

Journal of Electroanalytical Chemistry

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The Os 2+ functionalised pyrrole monomer, Osmium-bis-N,N'-(2,2'-bipyridyl)-N-(pyridine-4-ylmethyl-(8-pyrrole-1yl-octyl)-amine)chloride, 1, has been synthesised and characterised by spectroscopic (UV/Vis, 1 H NMR, IR spectroscopy) techniques and cyclic voltammetry.Solution phase studies of 1 gave a redox couple associated with the Os 3+/2+ and an irreversible wave associated with the oxidation of the pyrrole moiety. Attempts to form stable polymeric films of 1 onto vitreous carbon electrodes, by homopolymerisation, proved unsuccessful. However electroactive films of 1 were obtained by the electrooxidation of 1 through the Os 3+/2+ couple in low dielectric media such as toluene/acetonitrile mixtures.

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Section: Introductionmentioning

confidence: 99%

Voltammetric behaviour, homogeneous charge transport dynamics and electrocatalytic properties of an Os2+ functionalised pyrrole monomer

Foster¹,

Allen²,

McCormac³

2004

Journal of Electroanalytical Chemistry

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“…Consequently, the overall electrode reaction can be classified as an electrochemical reaction followed by a chemical reaction process, as previously reported. [29][30][31] Figure 6(B) shows the variation of peak current with pH. As can be seen, the peak current of DA reached a maximum at pH 6.0, and that of AA increased slightly from pH 2.0 to 5.0, then decreased quickly with increasing pH.…”

Section: Analytical Characterizationmentioning

confidence: 90%

Covalent Modification of Glassy Carbon Electrodes with β-Alanine for Voltammetric Separation of Dopamine and Ascorbic Acid

Zhang

Sun

2001

ANAL. SCI.

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“…Multistage oxidation: the anodic oxidation of Lascorbic acid has been studied on a range of different anodes and mechanisms involving several intermediate steps have been proposed [13][14][15][16][17] in acid media (see Fig. 9).…”

Section: Discussionmentioning

confidence: 99%

Use of organic reductants to lower brightener consumption in acid copper electroplating bath utilising catalytic anodes

Cobley¹,

Gabe²

2006

Transactions of the IMF

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Catalytic anodes are an enabling technology for high speed, horizontal acid copper electroplating. However, their usage is associated with high additive oxidation rates which can be problematic in terms of cost and control of the electrolyte. The addition of certain 'organic reductants' to the electroplating solution has been found to have a dramatic effect on brightener consumption when catalytic anodes are employed. This paper reports an investigation of three such compounds having varying functionality with respect to brightener oxidation. It was found that the ability of a particular organic reductant to influence brightener oxidation was related to its electrochemical properties on a particular anode material. However, it is postulated that the species' mechanism of oxidation and its anti-oxidant properties may also be important factors.

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Kinetic parameters and mechanism of the electrochemical oxidation of L-ascorbic acid on platinum electrodes in acid solutions

Cited by 110 publications

References 24 publications

Voltammetric behaviour, homogeneous charge transport dynamics and electrocatalytic properties of an Os2+ functionalised pyrrole monomer

Voltammetric behaviour, homogeneous charge transport dynamics and electrocatalytic properties of an Os2+ functionalised pyrrole monomer

Covalent Modification of Glassy Carbon Electrodes with β-Alanine for Voltammetric Separation of Dopamine and Ascorbic Acid

Use of organic reductants to lower brightener consumption in acid copper electroplating bath utilising catalytic anodes

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