Radiocolloid-modified electrodes: Electroaggregation of silver radiosol

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A version of the in-situ radiotracer 'foil' method has been used to study the electroaggregation of silver radiosol on a polycrystalline gold electrode, and the surface electrochemistry of the resulting radiocolloid-modified electrode. Silver sol/radiosol labelled with 110mAg has been prepared with no stabilizing agent, using NaBH4 reduction. It was found that the surface excess of Ag-containing species measured, as well as the electroaggregation-disaggregation (i.e. electroattachment-detachment, electrodeposition-stripping) processes are time and electrode potential dependent. The 'mobility' of the particles (deposited-detached) has also been discussed.

Original languageEnglish
Pages (from-to)161-173
Number of pages13
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume193
Issue number1-3
DOIs
Publication statusPublished - Dec 15 2001

Keywords

  • Colloid stability
  • Colloid-modified electrodes
  • Electroaggregation
  • Modified electrodes
  • Radioelectrochemistry
  • Radiosol
  • Silver sol/radiosol

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Radiocolloid-modified electrodes: Electroaggregation of silver radiosol'. Together they form a unique fingerprint.

  • Cite this