Enhanced electrochemical performance of renewable flexible supercapacitors through the synergistic effects of nitrogen-doped carbonaceous fillers and controlled polypyrrole nanostructuring on nanocellulose fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43931801" target="_blank" >RIV/60461373:22310/25:43931801 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/25:43931801 RIV/00216208:11320/25:10506764 RIV/70883521:28610/25:63595860

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352152X25017591?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352152X25017591?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.est.2025.117046" target="_blank" >10.1016/j.est.2025.117046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhanced electrochemical performance of renewable flexible supercapacitors through the synergistic effects of nitrogen-doped carbonaceous fillers and controlled polypyrrole nanostructuring on nanocellulose fibers

Popis výsledku v původním jazyce

The growing demand for sustainable, high-performance energy storage solutions has driven advancements in flexible supercapacitors, which offer high power density, fast charging, and adaptability. This study investigates the electrochemical performance of novel, renewable, flexible, lightweight, and cost-effective electrodes synthesized using environmentally friendly one-pot and two-step methods. The electrodes integrate polypyrrole nanotubes (PPy-NT), cellulose nanofibers (CNF), and nitrogen-doped one-dimensional carbonaceous fillers (ACT-NT) or commercial carbon black. ACT-NT obtained by carbonizing and activating of PPy-NT, exhibit a nanotubular structure, high surface area, wettability, and tunable electrical conductivity. To construct a flexible supercapacitor, a simple cellulose hydrogel was synthesized as a dual-function electrolyte reservoir and separator. The PPy-NT/CNF electrode, synthesized via the one-pot method, achieved the highest initial specific capacitance (e.g., 172 F g(-1) at 5 mV s(-1)). This performance was attributed to the uniform growth of PPy-NT on CNF, which improved conductivity and redox activity. However, electrodes with carbonaceous fillers demonstrated better cycling stability by reinforcing the electrode structure and enabling a combination of electric double-layer capacitance and pseudocapacitive charge storage. The two-step synthesis method further enhanced the performance of PPy-NT/ACT-NT/CNF electrode by achieving an optimal balance of conductivity, morphology, wettability, textural and mechanical properties, outperforming their one-pot synthesis counterparts. These findings highlight the importance of material design for flexible, renewable supercapacitors, offering a pathway to more sustainable and efficient energy storage.

Název v anglickém jazyce

Enhanced electrochemical performance of renewable flexible supercapacitors through the synergistic effects of nitrogen-doped carbonaceous fillers and controlled polypyrrole nanostructuring on nanocellulose fibers

Popis výsledku anglicky

The growing demand for sustainable, high-performance energy storage solutions has driven advancements in flexible supercapacitors, which offer high power density, fast charging, and adaptability. This study investigates the electrochemical performance of novel, renewable, flexible, lightweight, and cost-effective electrodes synthesized using environmentally friendly one-pot and two-step methods. The electrodes integrate polypyrrole nanotubes (PPy-NT), cellulose nanofibers (CNF), and nitrogen-doped one-dimensional carbonaceous fillers (ACT-NT) or commercial carbon black. ACT-NT obtained by carbonizing and activating of PPy-NT, exhibit a nanotubular structure, high surface area, wettability, and tunable electrical conductivity. To construct a flexible supercapacitor, a simple cellulose hydrogel was synthesized as a dual-function electrolyte reservoir and separator. The PPy-NT/CNF electrode, synthesized via the one-pot method, achieved the highest initial specific capacitance (e.g., 172 F g(-1) at 5 mV s(-1)). This performance was attributed to the uniform growth of PPy-NT on CNF, which improved conductivity and redox activity. However, electrodes with carbonaceous fillers demonstrated better cycling stability by reinforcing the electrode structure and enabling a combination of electric double-layer capacitance and pseudocapacitive charge storage. The two-step synthesis method further enhanced the performance of PPy-NT/ACT-NT/CNF electrode by achieving an optimal balance of conductivity, morphology, wettability, textural and mechanical properties, outperforming their one-pot synthesis counterparts. These findings highlight the importance of material design for flexible, renewable supercapacitors, offering a pathway to more sustainable and efficient energy storage.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

2352-1538

Svazek periodika

126

Číslo periodika v rámci svazku

Srpen

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

117046

Kód UT WoS článku

001495975800007

EID výsledku v databázi Scopus

2-s2.0-105005110895