Study of the Underlying Electrochemistry of Polycrystalline Gold in Aqueous Solution and Electrocatalysis by Large Amplitude Fourier Transformed Alternating Current Voltammetry

Lert-Anantawong, B, O'Mullane, A, Surareungchai, W, Somasundrum, M, Burke, L and Bond, A 2008, 'Study of the Underlying Electrochemistry of Polycrystalline Gold in Aqueous Solution and Electrocatalysis by Large Amplitude Fourier Transformed Alternating Current Voltammetry', Langmuir, vol. 24, pp. 2856-2856.


Document type: Journal Article
Collection: Journal Articles

Title Study of the Underlying Electrochemistry of Polycrystalline Gold in Aqueous Solution and Electrocatalysis by Large Amplitude Fourier Transformed Alternating Current Voltammetry
Author(s) Lert-Anantawong, B
O'Mullane, A
Surareungchai, W
Somasundrum, M
Burke, L
Bond, A
Year 2008
Journal name Langmuir
Volume number 24
Start page 2856
End page 2856
Total pages 1
Publisher American Chemical Society
Abstract Polycrystalline gold electrodes of the kind that are routinely used in analysis and catalysis in aqueous media are often regarded as exhibiting relatively simple double-layer charging/discharging and monolayer oxide formation/ removal in the positive potential region. Application of the large amplitude Fourier transformed alternating current (FT-ac) voltammetric technique that allows the faradaic current contribution of fast electron-transfer processes to be emphasized in the higher harmonic components has revealed the presence of well-defined faradaic (premonolayer oxidation) processes at positive potentials in the double-layer region in acidic and basic media which are enhanced by electrochemical activation. These underlying quasi-reversible interfacial electron-transfer processes may mediate the course of electrocatalytic oxidation reactions of hydrazine, ethylene glycol, and glucose on gold electrodes in aqueous media. The observed responses support key assumptions associated with the incipient hydrous oxide adatom mediator (IHOAM) model of electrocatalysis.
Subject Electrochemistry
DOI - identifier 10.1021/la702454k
Copyright notice © 2008 American Chemical Society.
ISSN 0743-7463
Versions
Version Filter Type
Altmetric details:
Access Statistics: 85 Abstract Views  -  Detailed Statistics
Created: Mon, 06 Dec 2010, 14:11:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us