Electrochemistry Study of Permselectivity and Interfacial Electron Transfers of a Branch-Tailed Fluorosurfactant Self-Assembled Monolayer on Gold.

ABSTRACT: We investigated the permselectivity and interfacial electron transfers of an amphiphilic branch-tailed fluorosurfactant self-assembled monolayer (FS-SAM) on a gold electrode by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The FS-SAM was prepared by a self-assembly technique and a "click" reaction. The barrier property and interfacial electron transfers of the FS-SAM were also evaluated using various probes with different features. The FS-SAM allowed a higher degree of permeation by small hydrophilic (Cl- and F-) electrolyte ions than large hydrophobic (ClO₄- and PF₆-) ones. Meanwhile, the redox reaction of the Fe(CN)₆3- couple was nearly completely blocked by the FS-SAM, whereas the electron transfer of Ru(NH₃)₆3+ was easier than that of Fe(CN)₆3-, which may be

SUBMITTER: Li S 

PROVIDER: S-EPMC6278534 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature