Electrocatalytic properties of adsorbed halides: The reduction of hexaaquairon(III) on polycrystalline gold in aqueous electrolytes

Enhancements in the rates of reduction of hexaaquairon(III), [Fe(H2O)6]3+, on polycrystalline Au, Au(poly), induced by the adsorption of bromide, Br−, have been examined by chronoamperometric techniques in 0.1M HClO4 aqueous solutions containing Br− at concentrations in the μM (0.15. Possible explan...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2018-06, Vol.819, p.474-480
Main Authors: Jeberaj, Adriel J.J., Georgescu, Nicholas S., Scherson, Daniel A.
Format: Article
Language:English
Subjects:
Adsorption
Aqueous electrolytes
Coordination compounds
Diffusion
Electrocatalysis
Electrodes
Electrolytes
Gold
Halides
Oxidation
Polycrystals
Reduction
Reflectance
Rotating disk
Rotating disks
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Summary:Enhancements in the rates of reduction of hexaaquairon(III), [Fe(H2O)6]3+, on polycrystalline Au, Au(poly), induced by the adsorption of bromide, Br−, have been examined by chronoamperometric techniques in 0.1M HClO4 aqueous solutions containing Br− at concentrations in the μM (0.15. Possible explanations for this unexpected behavior are discussed.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2017.12.049