Effect of an alkylsilane monolayer on an indium-tin oxide surface on the electrochemistry of hexacyanoferrate

Inna Markovich, Daniel Mandler

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

The presence of a disorganized octadecylsilane, C18, monolayer on an indium-tin oxide (ITO) electrode has a profound effect on the electrochemistry of hexacyanoferrate, Fe(CN)63-/4-. We found that the alkylsilane monolayer forms a hydrophobic matrix, which affects the heterogeneous rate of electron transfer of the metallic complex, depending on the nature of the counter cation presence in the solution. A model is suggested which accounts for these effects as well as for the changes in the formal redox potential that are observed.

Original languageEnglish
Pages (from-to)194-202
Number of pages9
JournalJournal of Electroanalytical Chemistry
Volume484
Issue number2
DOIs
StatePublished - 17 Apr 2000

Bibliographical note

Funding Information:
This research was supported by the Bi-National Science Foundation (97-00198).

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