About the capacitive currents in conducting polymers: the case of polyaniline

  • Juliana Scotto
  • Waldemar A. Marmisollé
  • Dionisio PosadasEmail author


In the present work, we review the occurrence of capacitive currents in conducting polymer and, particularly, in the electrochemical response of polyaniline film-coated electrodes Firstly, we present and discuss the differences between the electrical double-layer capacitance and the so-called pseudocapacitance. Then, we discuss the capacitive behavior of Pani as studied by a variety of electrochemical (cyclic voltammetry, electrochemical impedance spectroscopy) and spectroscopic techniques (epr, UV-visible). Understanding the capacitive behavior of polyaniline (Pani) becomes essential not only from an academic point-of-view but also from a technological perspective, as Pani has been extensively employed for the construction of materials for supercapacitors.


Capacitance Pseudocapacitance Double layer Constant phase element Cyclic voltammetry Polyaniline 



WAM and DP are members of the CIC of the CONICET. JS thanks a fellowship from CONICET.

Funding information

This work was financially supported by the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (PIP 0813), the Agencia Nacional de Promoción Científica Tecnológica (ANPCyT) (PICT-0407, PICT-2015-0239), and the Universidad Nacional de La Plata (UNLP) (PPID-X016).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Juliana Scotto
    • 1
    • 2
  • Waldemar A. Marmisollé
    • 1
  • Dionisio Posadas
    • 1
    Email author
  1. 1.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA). Facultad de Ciencias ExactasUniversidad Nacional de La Plata, CCT La Plata-CONICETLa PlataArgentina
  2. 2.Instituto de Ciencias de la SaludUniversidad Nacional Arturo JauretcheFlorencio VarelaArgentina

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