A compressible asymmetric supercapacitor based on carbon Felt/MWCNT@PANI and MXene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63595959" target="_blank" >RIV/70883521:28610/25:63595959 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0254058425007667?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0254058425007667?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchemphys.2025.131120" target="_blank" >10.1016/j.matchemphys.2025.131120</a>
Alternative languages
Result language
angličtina
Original language name
A compressible asymmetric supercapacitor based on carbon Felt/MWCNT@PANI and MXene
Original language description
Compressible supercapacitors are novel energy storage devices for commercial portable and flexible electronics. Substantial efforts have been made to develop compressible supercapacitors with high voltage output, good mechanical stability, and electrochemical performance. This study investigates the performance of a compressible asymmetric supercapacitor configuration based on a polyaniline-modified carbon felt/multi-walled carbon nanotube composite (a-CF/MWCNT@PANI) as the positive electrode and a titanium carbide-MXene (Ti3C2Tx) as the negative electrode. The acid-functionalized MWCNTs were loaded into activated carbon felt by dipping and drying and subsequently were coated by polyaniline via the chemical oxidation polymerization method. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) confirmed the formation of the dendritic structure of PANI on the surface of 3D porous composite (a-CF/MWCNT@PANI) positive electrode. X-ray diffraction (XRD), SEM, and cyclic voltammetry (CV) measurements revealed 2D layered morphology and pseudocapacitive behavior of Ti3C2Tx-MXene. The specific capacitance of the assembled asymmetric supercapacitor was found as 1.6 F cm−2 at 5 mA cm−2, the corresponding energy density and power density were 262 μWh cm−2 and 2.7 mW cm−2, respectively. The asymmetric cell exhibited a retention rate of 92.4 % after 1000 cycles. Above 50 % strain, the supercapacitor showed a favorable CV profile, which is owing to the enhanced electrical conductivity of the CF composite electrode caused by compression. The capacitance retention retained more than 90 % over 200 compression-recovery cycles.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/TK03030157" target="_blank" >TK03030157: Next generation all-solid-state Li-ion batteries</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Chemistry and Physics
ISSN
0254-0584
e-ISSN
1879-3312
Volume of the periodical
344
Issue of the periodical within the volume
Neuveden
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
nestránkováno
UT code for WoS article
001505616700002
EID of the result in the Scopus database
2-s2.0-105007135687