Nano-Au electrode modified by disulphide-bond linked diferrocenylarylamines

Two disulphide-bond linked diferrocenylarylamines,p-( Fc-Ph-NH-CH 2-Ph-S) 2 and m-( Fc-Ph-NH-CH 2-Ph-S) 2,were prepared by reducing C-N double bond and deprotecting acetylthio group of two Schiff bases with sodium borohydride simultaneously. These Schiff bases were synthesized by reacting p or m-ferrocenyphenylamines with p-acetylthiobenzaldehyde. Nano-Au / glassy carbon electrode,electrochemically deposited gold nanocrystals on glassy carbon electrodes,was modified by two disulphide-bond linked diferrocenylarylamines through self-assembly technique. The electrochemical behaviors of the modified nano-Au / glassy carbon electrodes were explored in detail with cyclic voltammetry and electrochemical impedance spectroscope. These modified Au / glassy carbon electrodes exhibited a pair of reversible redox peaks in LiClO 4-CH 3 CN solution and showed electrocatalytic activity for oxidation of Rutin.