EIS study of the redox reaction of at glassy carbon electrode via diazonium reduction in aqueous and acetonitrile solutions

Electrochemical properties of aryl-modified gold electrodes

“…In contrast to a bare gold electrode, electron transfer at the aryl-modified electrodes is almost completely blocked. The observed inhibition of electron transfer between the metal and the redox species is in agreement with results for glassy carbon [54,57,58] and Ni [22] electrodes functionalised with aryl layers.…”

A study of glassy carbon electrodes modified with azobenzene derivatives

“…by applying 10 potential cycles beside the one cycle and furthermore, for the third modification procedure the electrode was held 10 min at a constant potential in order to improve the compactness of the aryl film). Earlier studies have revealed that the blocking action increased with increasing the modification time [46]. However, the electrochemical response of the FeðCNÞ 3À=4À 6 probe was strongly suppressed by applying modifica- 6 .…”

“…It can be stated that the enlargement in the DE p indicates the inhibition of the electron transfer rate and also it refers to the stronger blocking action. Khoshroo and Rostami have grafted the GC surface with FBK via electrochemical reduction using different diazonium reduction times and compared the electrochemical behaviour with 4-diazophenylaceticacid tetrafluoroborate (PAA) modified GC electrodes [46]. They concluded that the blocking action was less pronounced for FBK modified electrode towards FeðCNÞ 3À=4À 6 redox couple compared to PAA modified GC electrode.…”

Simultaneous Determination of Dihydroxybenzene Isomers Using Preanodized Inlaying Ultrathin Carbon Paste Electrode

“…As shown in Figure 2, the significant differences can be observed. The nichrome electrode exhibits an almost straight line that is characteristic of a diffusional limiting step of the electrochemical process [30]. After inlaying carbon paste onto nichrome substrate, their EIS include a semicircle part and a linear part, the semicircle part at higher frequencies corresponds to the electron-transfer limited process and the linear part at low frequencies to the diffusion process (as shown in Figure 2b and c) [31].…”