Electrochemistry Behavior and Ion-pair Effect of Ferrocene in Self-assembled Monolayers

Abstract

Abstract: Ferrocenylalkanethiol (HSC₁₀Fc) can be self-assembled into a stable and repro-ducible monolayer on gold.The self-assembled monolayer(SAM) showed a reversible redoxbehavior in 0.1 mol/L HClO₄ solution, while its voltammetric properties was influenced byboth type and concentration of the supporting electrolytes.On the basis of "ion pair" effect,a detailed experimental investigation was performed to evaluate the role of type and concen-tration of the different anions in determining the shapes and positions of the redox peaks.Atthe same time, the mixed monolayer of HSC₁₀ Fc with HSC₁₁ CH₃ was prepared, whichshowed varied electrochemical behavior comparing to the pure monolayer.However, the ion-pair effect was the same as the pure monolayer.

Key words: Ferrocenylalkanethiol, Self-assembled monolayer, Electrochemistry behavior, Ion-pair effect, Self-assembled mixed monolayer

CLC Number:

O646

TrendMD:

CHENG Guang-Jun, YU Hua-Zhong, SHAO Hui-Bo, XIA Nan, LIU Zhong-Fan. Electrochemistry Behavior and Ion-pair Effect of Ferrocene in Self-assembled Monolayers[J]. Chem. J. Chinese Universities, 1997, 18(7): 1141.

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Electrochemistry Behavior and Ion-pair Effect of Ferrocene in Self-assembled Monolayers

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