Article ID Journal Published Year Pages File Type
219386 Journal of Electroanalytical Chemistry 2012 7 Pages PDF
Abstract

The fractal dimensions of polypyrrole (PPy) film electrodeposited on the glassy carbon (GC) electrode formed in the presence of ClO4- is obtained by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) methods in different film thicknesses and various synthesis temperatures. Atomic force microscopy (AFM) technique was employed to analyze fractal structure of film. Anomalous diffusion through the film in which mean squared displacement of particles has not a linear dependence with time (〈x2〉∝tγ〈x2〉∝tγ) has been discussed and values of γ that is the characteristic of anomalous diffusion is obtained by EIS method and then the relation between fractal dimension and anomalous diffusion has been investigated.

► Fractal dimension of polypyrrole has been calculated by CV, EIS and AFM methods. ► Anomalous behavior of diffusion has been investigated in different conditions. ► Data showed that anomalous diffusion and fractal dimension are interconnected.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
Authors
, , ,