Detail publikace

Maximizing the electrochemical performance of supercapacitor electrodes from plastic waste

DĚDEK, I. BARTUSEK, S. DVOŘÁČEK, J.J. NEČAS, J. PETRUŠ, J. JAKUBEC, P. KUPKA, V. OTYEPKA, M.

Originální název

Maximizing the electrochemical performance of supercapacitor electrodes from plastic waste

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The management of the increasing volume of plastic waste has become a key challenge for society. A promising strategy now consists in the transformation of plastic waste into high-value materials that can be utilized in energy storage devices such as batteries and supercapacitors. In this study, we demonstrate a two-step procedure, involving pyrolysis, followed by chemical activation that will convert common plastic waste into activated carbons (ACs). This technique makes ACs suitable for supercapacitor electrode materials. Further, the electrochemical performance of ACs is outstanding in terms of capacitance, energy density, and cycling stability. Besides the well-established parameters, including a specific surface area and micropore volume, we found that other critical factors such as polymer glass transition temperature, polymer-activating agent miscibility, activating agent (K2CO3):AC ratio, and AC water dispersion stability also play a crucial role in determining the supercapacitors performance. Controlling these parameters, we obtained ACs as supercapacitor electrodes from a range of plastic waste materials with a competitive electrochemical performance. Specifically, the ACs exhibited a specific capacitance of 220 F g−1 (at a current density of 1 A g−1), energy and power densities of 61.1 Wh kg−1 and 36.9 kW kg−1, respectively, and excellent cycling stability (95 % retention after 30,000 cycles). Our findings provide a pathway towards transforming plastic waste into valuable electrode materials for supercapacitors.

Klíčová slova

Electrochemistry; supercapacitors; plastic waste; pyrolysis; activated carbon

Autoři

DĚDEK, I.; BARTUSEK, S.; DVOŘÁČEK, J.J.; NEČAS, J.; PETRUŠ, J.; JAKUBEC, P.; KUPKA, V.; OTYEPKA, M.

Vydáno

7. 8. 2023

Nakladatel

Elsevier

ISSN

2352-1538

Periodikum

Journal of Energy Storage

Ročník

72

Číslo

D

Stát

Nizozemsko

Strany od

1

Strany do

9

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S2352152X23020571

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245045

BibTex

@article{BUT184698,
  author="Ivan {Dědek} and Stanislav {Bartusek} and Josef Jan {Dvořáček} and Jan {Nečas} and Josef {Petruš} and Petr {Jakubec} and Vojtěch {Kupka} and Michal {Otyepka}",
  title="Maximizing the electrochemical performance of supercapacitor electrodes from plastic waste",
  journal="Journal of Energy Storage",
  year="2023",
  volume="72",
  number="D",
  pages="1--9",
  doi="10.1016/j.est.2023.108660",
  issn="2352-1538",
  url="https://www.sciencedirect.com/science/article/pii/S2352152X23020571"
}