Electron transfer kinetics of ferrocene at microcrystalline boron-doped diamond electrodes: Effect of solvent and electrolyte

Shannon Haymond, Gerald T. Babcock, Greg M. Swain*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Cyclic voltammetric measurements were made using well-characterized microcrystalline boron-doped diamond thin-film electrodes to test the material's responsiveness for ferrocene as a function of scan rate, solvent, and electrolyte composition. Apparent heterogeneous electron transfer rate constants, koapp, of 0.042 ± 0.015, 0.048 ± 0.015, and 0.008 ± 0.002 cm/s were observed in 0.1 M NaClO4/CH3CN, 0.1 M TBAClO4/CH3CN, and 0.1M TBAClO4/CH2Cl2, respectively. These rate constants, obtained using electrodes without any type of pretreatment, are similar to those observed for freshly polished glassy carbon. The results demonstrate that boron-doped diamond is a viable material for the electrochemical analysis of nonaqueous analytes.

Original languageEnglish (US)
Pages (from-to)249-253
Number of pages5
JournalElectroanalysis
Volume15
Issue number4
DOIs
StatePublished - Mar 1 2003

Keywords

  • Boron-doped diamond
  • Cyclic voltammetry
  • Ferrocene
  • Kinetics
  • Nonaqueous

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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