Study of polyaniline films degradation by thin-layer bidimensional spectroelectrochemistry

Fabrication of polyaniline/graphene oxide composite for graphite felt electrode modification and its performance in the bioelectrochemical system

“…6, the polarization currents decreased with time for both electrodes, i.e., the PANi modified GF electrode electrode and PANi/GO modified GF electrode. This phenomenon was due to the deprotonation of PANi when applied a positive potential [35]. However, the initial current of the PANi/GO modified GF electrode was about 60 mA while it was 40 mA for the PANi modified GF electrode.…”

Raman spectroelectrochemical study on the kinetics of electrochemical degradation of polyaniline

“…In electrochemistry-related systems, PANI is known to undergo decomposition processes, especially at high electrode potentials [1]. At least two kinds of electrochemical PANI degradation are known: (i) breaking of polymer chains accomplished by formation of soluble low molecular weight products like quinones or quinoneimines, and (ii) transformation of polymer structure, leading to chemical and morphological changes, and loss of its electric conductivity [2]. In the former case, the loss of polymer mass, accomplished by changes in concomitant characteristics like optical absorbance and electrochemical redox capacity, are observed.…”

Development of a Novel Bidimensional Spectroelectrochemistry Cell Using Transfer Single-Walled Carbon Nanotubes Films as Optically Transparent Electrodes

“…This multi-response technique has been applied in the study of diffusive processes and adsorptive electrode reactions, including electrogeneration of soluble Prussian Blue from hexacyanoferrate(II) solutions, 3 and organic conducting polymers such as polyaniline, 4 poly(3,4-ethylenedioxythiophene) and polybithiophenes.…”