Impedance Spectroscopy of Self-Assembled Monolayers on Au ( 111 ) : Evidence for Complex Double-Layer Structure in Aqueous NaClO 4 at the Potential of Zero Charge

The impedance of a Au(111) electrode modified by three different self-assembled monolayers has been studied over a wide frequency range in aqueous NaClO 4 solutions. The impedance characteristics of the bare electrode are compared with those of the same electrode modified with decanethiol, ω-hydroxydecanethiol, and 4 ′hydroxy-4-mercaptobiphenyl. In the case… CONTINUE READING