Electrochemical behavior of sulphydryl compounds at surface of carbon paste electrode modified with ferrocene/carbon nanotubes

During the past few years, considerable research efforts have been devoted to the synthesis,modifications, and applications of carbon nanotubes (CNTs), due to their appealing uniform andhigh specific surface area and unique physical and chemical properties (1-3). In this work, we report a simple and effective strategy for functionalization of the carbon nanotubes by ferrocene. Then carbon nanotubes functionalized by ferrocene (FC-CNTs) were studied by scanningelectron microscopy (SEM), energy dispersive X-ray (EDAX) and voltammetry methods. In order to study electrocatalytic properties of carbon nanotubes functionalized with ferrocene, carbon-paste electrode modified with carbon nanotubes functionalized with ferrocene (FCCNTs/ CPE) was prepared and electrochemical behavior of this modified electrode was investigated in absence and presence of sulphydryl compounds. The results showed that sulphydryl compounds oxidation was catalyzed by carbon nanotubes functionalized with ferrocene in carbon paste and due to anodic current increase according to concentration of sulphydryl compounds.

کلیدواژه ها:

Ferrocene ، Carbon nanotubes ، Sulphydryl compounds ، Carbon paste electrode