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<p>In this work, nanocomposites based on TiO<sub>2</sub> aerogels incorporated with conductive polymers (PEDOT:PSS and PANI) were synthesized in situ. The evaluation of the electrochemical properties of nanocomposites of titania aerogels and conductive polymers was carried out using cyclic voltammetry, impedance spectroscopy, and galvanized charge–discharge methods. The nanocomposites exhibited a highly stable electrochemical cycling performance after incorporation with both PANI and PEDOT. TiO<sub>2</sub>/PEDOT and TiO<sub>2</sub>/PANI aerogels are in the region expected for application in Ragone graph supercapacitors with the highest specific capacitance at concentrations of 30% PEDOT of 1100 mF/g and a surface area of 546 m<sup>2</sup>/g, and 30% PANI with 1200 mF/g and a specific surface area of 606 m<sup>2</sup>/g, which is remarkably high for hybrid nanocomposites.</p> Graphical Abstract <p></p>

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High surface area electrochemically stable nanocomposites based on TiO2 aerogels incorporated with conductive polymers

  • 期刊论文

  • 发表日期：

    2025年1月17日

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  • Joseane C. Bernardes,
  • Marina C. P. Luz,
  • Kananda M. Degues,
  • Daliana Müller,
  • Carlos R. Rambo

摘要

In this work, nanocomposites based on TiO2 aerogels incorporated with conductive polymers (PEDOT:PSS and PANI) were synthesized in situ. The evaluation of the electrochemical properties of nanocomposites of titania aerogels and conductive polymers was carried out using cyclic voltammetry, impedance spectroscopy, and galvanized charge–discharge methods. The nanocomposites exhibited a highly stable electrochemical cycling performance after incorporation with both PANI and PEDOT. TiO2/PEDOT and TiO2/PANI aerogels are in the region expected for application in Ragone graph supercapacitors with the highest specific capacitance at concentrations of 30% PEDOT of 1100 mF/g and a surface area of 546 m2/g, and 30% PANI with 1200 mF/g and a specific surface area of 606 m2/g, which is remarkably high for hybrid nanocomposites.

Graphical Abstract