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 language | American English |
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Pages (from-to) | 194-202 |
Number of pages | 9 |
Journal | Journal of Electroanalytical Chemistry |
Volume | 484 |
Issue number | 2 |
DOIs | |
State | Published - 17 Apr 2000 |
Bibliographical note
Funding Information:This research was supported by the Bi-National Science Foundation (97-00198).