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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20704 - Energy and fuels

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

2352-1538

Volume of the periodical

126

Issue of the periodical within the volume

Srpen

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

117046

UT code for WoS article

001495975800007

EID of the result in the Scopus database

2-s2.0-105005110895