Underpotential deposition and anodic stripping voltammetry at mesoporous microelectrodes

Sanchez, P.L. and Elliott, J.M. ORCID: https://orcid.org/0000-0001-7469-4154 (2005) Underpotential deposition and anodic stripping voltammetry at mesoporous microelectrodes. Analyst, 130 (5). pp. 715-720. ISSN 0003-2654 doi: 10.1039/b416593d

Abstract/Summary

Using the technique of liquid crystal templating a series of high surface area mesoporous platinum microelectrodes was fabricated. The underpotential deposition of metal ions at such electrodes was found to be similar to that at conventional platinum electrodes. The phenomena of underpotential deposition, in combination with the intrinsic properties of mesoporous microelectrodes (i.e. a high surface area and efficient mass transport) was exploited for the purpose of anodic stripping voltammetry. In particular the underpotential deposition of Ag+, Pb2+ and Cu2+ ions was investigated and it was found that mesoporous microelectrodes were able to quantify the concentration of ions in solution down to the ppb range. The overall behaviour of the mesoporous electrodes was found to be superior to that of conventional microelectrodes and the effects of interference by surfactants were minimal.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/11595
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Uncontrolled Keywords	OVERPOTENTIAL TRANSITION, PLATINUM MICROELECTRODES, NANOSTRUCTURED, PLATINUM, CYCLIC VOLTAMMETRY, SILVER OVERLAYER, TRACE-METALS, ELECTRODES, FILMS, UPD, REARRANGEMENT
Download/View statistics	View download statistics for this item