Publication: Electrochemical restructuring of Gold electrodes with redox active species to create electrocatalytically active nanostructured surfaces
Issued Date
2020-05-05
Resource Type
ISSN
18734359
09277757
09277757
Other identifier(s)
2-s2.0-85079530399
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Colloids and Surfaces A: Physicochemical and Engineering Aspects. Vol.592, (2020)
Suggested Citation
Panjaphong Lertsathitphong, Anthony P. O'Mullane, Benchaporn Lertanantawong Electrochemical restructuring of Gold electrodes with redox active species to create electrocatalytically active nanostructured surfaces. Colloids and Surfaces A: Physicochemical and Engineering Aspects. Vol.592, (2020). doi:10.1016/j.colsurfa.2020.124580 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/53630
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Electrochemical restructuring of Gold electrodes with redox active species to create electrocatalytically active nanostructured surfaces
Abstract
© 2020 Elsevier B.V. Electrochemical potential cycling of gold electrodes in commonly used redox active species to produce a nanostructured surface is introduced. A commercially available gold electrode when cycled in three redox active species including hexaammine ruthenium chloride, ferrocene methanol and ferricyanide shows rapid conversion of the surface into a nanostructured form within 50 cycles which usually requires hundreds of cycles in their absence. The active gold nanostructured electrode was characterized by cyclic voltammetry in acidic and alkaline electrolyte indicating the presence of different basal sites depending on the redox species employed. In addition, the active gold nanostructured surface shows higher electrocatalytic activity than the pristine polycrystalline gold electrode for glucose and ascorbic acid oxidation in alkaline media.