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Structure and properties of the Nafion—polyaniline—palladium composite electrodes

“…As can be inferred from Fig. 1, keeping the electrode at 1.2 V leads to partial (curve 4 ) or complete (curve 5 ) degradation of polyaniline entering the composition of the composite, which, according to the data reported in [9,10], follows from the decrease in the polyaniline doping peak at E = 0.45 V and which was confirmed by the data of radioisotope measurements. The coincidence of the run of curves 1 and 5 ( Fig.…”

“…2 and 3. Once the Naf-Pan-Pd system was formed, one technique or the other was used to examine its behavior after keeping the electrode at a potential of 1.2 V. This is the potential at which the composite film Naf-Pan is subjected to degradation, with a partial weight loss at the expense of the transition of a portion of products of its degradation into solution, as it was demonstrated earlier in [9,10]. The results of these measurements are also presented in Figs.…”

“…The radioisotope measurements were used in this work for monitoring the process of synthesis of the Naf-Pan composite and its degradation with a weight loss. Experiments of this kind were described in detail in [9,10].…”

“…1). The synthesis of such composite films is described in detail in [9][10][11][12][13]. The application of microdeposits of composite films was performed by means of the cycling of the electrode potential in the potential region 0.1-0.7 V in a solution of the composition 2 × 10 -3 å PdCl 2 + 0.5 M H 2 SO 4 (solution no.…”

“…Palladium deposits dispersed in polyaniline films are considered as effective electrocatalysts in a number of processes [4][5][6][7][8]. Studying properties of composite polyaniline-Nafion films (Naf-Pan) [9][10][11][12][13] showed that composite polymers of this sort may be of interest as a polymer matrix when creating electrocatalysts by means of dispersion of microparticles of metals. This is caused by quite a number of reasons, among which one can single out the simplicity of the synthesis of such composite films, an increase in their resistance to degradation as compared with polyaniline, and improvement of mechanical properties at the expense of properties of Nafion.…”