Radiocolloid-modified electrodes: Electroaggregation of silver radiosol

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2 Citations (Scopus)


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
Issue number1-3
Publication statusPublished - Dec 15 2001


  • 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

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