Abstract
Electrochemical potentiostatic synthesis was used to obtain polyaniline (PAni) modified by new electroactive dopants: dianions of a diammonium salt (2,2′-azine-bis-(3-ethylbenzthiazoline-6-sulfoacid) (ABTS) and ammonium hexachloriridate IrCl 2−6 (HCI). Electrochemical behavior of PAni-ABTS and PAni-HCI modified polymers is studied by means of the methods of cyclic voltammetry (CV) and measuring charge-discharge dependences. It is shown that modified PAni-ABTS and PAni-HCI remain electroactive at significantly higher potential sweep rate dependences as compared to PAni doped by HSO −4 (PAni-sulfo). Electrochemical capacity values C are calculated according to the CV data (F/g) and discharge curves (mA h/g) and coulombic efficiency values (ή) of new polymers are determined that cause a considerable increase in the pertinent characteristics of PAni-sulfo. This effect is enhanced in the case of introducing the ABTS and HCI additives into the background electrolyte.
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Original Russian Text © V.V. Abalyaeva, O.N. Efimov, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 5, pp. 605–615.
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Abalyaeva, V.V., Efimov, O.N. Effect of electroactive anions on electrochemical behavior of polyaniline. Russ J Electrochem 46, 571–580 (2010). https://doi.org/10.1134/S1023193510050125
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DOI: https://doi.org/10.1134/S1023193510050125