Cyclic voltammetry characterization of microparticle monolayers

Magdalena Nosek*, Piotr Batys, Michał Skoczek, Paweł Weroński

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

We have demonstrated the applicability of cyclic voltammetry and rotating disk electrode techniques for the characterization of microparticle monolayers. We have tested experimentally the recently developed theoretical model for the determination of surface coverage of spherical particle monolayer by means of diffusion current measurements. We have verified our electrochemical results by means of optical microscopy. We have found that the model applicability range increases with the decrease of the adsorbed particle size. For the 1.16 μm particles we have found a good agreement between our theoretical and experimental results at the surface coverage larger than 0.45. Our results suggest that the voltammetric characterization of thin porous films may have practical applications for, e.g., detection and determination of surface coverage of bacteria, cells or other objects in the micron size range.

Original languageEnglish
Pages (from-to)241-246
Number of pages6
JournalElectrochimica Acta
Volume133
DOIs
Publication statusPublished - 1 Jul 2014
MoE publication typeA1 Journal article-refereed

Keywords

  • Colloidal particle monolayer
  • Cyclic voltammetry
  • Limiting diffusion current
  • Rotating disk electrode
  • Thin porous film

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