Understanding the capacitance of thin composite films based on conducting polymer and carbon nanostructures in aqueous electrolytes - Publikacja - MOST Wiedzy

Twoje konto

zaloguj

Wyszukiwarka

Understanding the capacitance of thin composite films based on conducting polymer and carbon nanostructures in aqueous electrolytes

Abstrakt

In this work electrochemical performance of thin composite films consisted of poly(3,4-ethylenedioxythiophene) (PEDOT), graphene oxide (GOx) and oxidized multiwalled carbon nanotubes (oxMWCNTs) is investigated in various sulphates (Li2SO4, Na2SO4, K2SO4, MgSO4) and acidic (H2SO4) electrolytes. Capacitance values, rate capability and cycling stability achieved for the composite layers are correlated with the electrolytes’ properties such as the conductivity, viscosity, cation size and pH. The highest capacitance values are achieved in acidic solution (98.6 mF cm−2 at 1 mA cm−2), whereas cycling stability is better in neutral electrolytes (88.4% of initial capacitance value after 10’000 cycles recorded for symmetric supercapacitor in 0.5 M MgSO4 solution). Diffusion controlled and non-diffusion controlled capacitance contributions are calculated and the results are discussed considering various ranges of sweep rates taken into account in the linear fitting and extrapolation of parameters.

Cytowania

  • 3 8

    CrossRef

  • 0

    Web of Science

  • 3 5

    Scopus

Autorzy (4)

Cytuj jako

Pełna treść

pobierz publikację
pobrano 240 razy
Wersja publikacji
Accepted albo Published Version
Licencja
Creative Commons: CC-BY-NC-ND otwiera się w nowej karcie

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ELECTROCHIMICA ACTA nr 383,
ISSN: 0013-4686
Język:
angielski
Rok wydania:
2021
Opis bibliograficzny:
Cymann-Sachajdak A., Graczyk-Zajac M., Trykowski G., Wilamowska-Zawłocka M.: Understanding the capacitance of thin composite films based on conducting polymer and carbon nanostructures in aqueous electrolytes// ELECTROCHIMICA ACTA -Vol. 383, (2021), s.138356-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.electacta.2021.138356
Źródła finansowania:
Weryfikacja:
Politechnika Gdańska

wyświetlono 140 razy

Publikacje, które mogą cię zainteresować

Electrode materials for electrochemical capacitors based on poly(3,4-ethylenedioxythiophene) and functionalized multi-walled carbon nanotubes characterized in aqueous and aprotic electrolytes

2018

Reliable renewable energy – application of electrochemical capacitors for electrical energy storage

2016

Hybrid electrode materials for fast performance devices

2013

Electrochemical and photoelectrochemical properties of the interface between titania nanotubes covered by conducting polymer in aqueous by conducting polymer in aqueous electrolytes – The effect of various geometry and electrolytes concentration

2018
Meta Tagi