Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/29581
Title: Synergistic effect of biomass-derived carbon and conducting polymer coatings on the supercapacitive energy storage performance of TiO2
Authors: Yılmaz, Ece
Bursa Uludağ Üniversitesi/Fen Bilimleri Enstitüsü.
0000-0002-3291-6457
Torbalı, Muhammet Ebubekir
GGP-0780-2022
57219238759
Keywords: Anatase TiO2
Biomass
Nanocomposite
Hydrothermal carbonization
Supercapacitors
Electrodes
Nanomaterials
Conversion
Nanotubes
Materials science
Capacitance
Carbon
Carbonization
Chlorine compounds
Conducting polymers
Cost effectiveness
Electric discharges
Electrolytes
Electrolytes
Mechanical stability
Nanocomposites
Oxide minerals
Porous materials
Silver compounds
Supercapacitor
Titanium dioxide
Anatase TiO2 nanoparticles
Anatase titanium dioxide
Conducting polymer coatings
Electrochemical performance
Electronic conductivity
Hierarchically porous carbons
Hydrothermal carbonization
Supercapacitor application
TiO2 nanoparticles
Issue Date: 1-Aug-2020
Publisher: Walter de Gruyter
Citation: Torbalı, M. E. ve Yılmaz, E. (2020). "Synergistic effect of biomass-derived carbon and conducting polymer coatings on the supercapacitive energy storage performance of TiO2". Materials Testing, 62(8), 814-819.
Abstract: The application of anatase titanium dioxide (TiO2), which is an abundant and cost effective resource, in supercapacitors has been restricted due to its poor electronic conductivity and limited mechanical stability. A biomass-derived carbon was coated on anatase TiO2 nanoparticles via practical and green hydrothermal carbonization in order to overcome these limitations. Hierarchically porous carbon provided a capacitive double layer for charge storage and the TiO2/C nanocomposite exhibited a specific capacitance of 61 F x g(-1) (0.25 A x g(-1), 0 to 1 V vs. Ag/AgCl, 1 M H2SO4 aqueous electrolyte). The TiO2/C/PEDOTTSS nanocomposite with enhanced specific capacitance and rate capability (189 F x g(-1) at 0.25 A x g(-1), 161 F x g(-1) at 0.5 A x g(-1), 123 F x g(-1) at 1 A x g(-1), 91 F x g(-1) at 2 A x g(-1)) was obtained by the application of an electrochemically active PEDOT:PSS layer. The prominent electrochemical and mechanical stability of the ternary nanocomposite was demonstrated by its ability to retain 98 % of its initial capacitance after 1500 cycles of charge-discharge at a high current rate (3 A x g(-1)). The synergistic use of sustainable organic and inorganic components with environmentally friendly and practical methods yields extremely promising electrochemical performances for supercapacitor applications. The TiO2/C/PEDOT:PSS nanocomposite presented in this work delivered an electrochemical performance comparable to its published counterparts which are obtained by more sophisticated or hazardous methods and with expensive components.
URI: https://doi.org/10.3139/120.111545
https://www.degruyter.com/document/doi/10.3139/120.111545/html
http://hdl.handle.net/11452/29581
ISSN: 0025-5300
Appears in Collections:Scopus
Web of Science

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