The influence of surfactants on the electron-transfer reaction at self-assembled thiol monolayers modifying a gold electrode

摘要: Monolayer films of thiols with different terminal groups (CH3, COOH and NH2) were prepared on gold electrodes using a self-assembling procedure. Cyclic voltammetry was used to investigate the electron-transfer reaction potassium ferricyanide at thiol modified electrode in presence surfactants. It found that surfactants show some effects electrode. Cationic can improve reversibility redox electrodes, while anionic cause little inhibition electron transfer both methyl carboxyl electrodes. Surfactants interact monolayers ways, changing structure properties monolayer film, further affect