Elaboration and properties of nanofibrillated cellulose composites with polypyrrole nanotubes or their carbonized analogs

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F21%3A43923377" target="_blank" >RIV/60461373:22330/21:43923377 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/21:43923377 RIV/00216208:11320/21:10437406 RIV/70883521:28610/21:63543438

Výsledek na webu

<a href="https://doi.org/10.1016/j.synthmet.2021.116806" target="_blank" >https://doi.org/10.1016/j.synthmet.2021.116806</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2021.116806" target="_blank" >10.1016/j.synthmet.2021.116806</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Elaboration and properties of nanofibrillated cellulose composites with polypyrrole nanotubes or their carbonized analogs

Popis výsledku v původním jazyce

Flexible electrically conductive composites based on renewable resources have attracted a growing interest for the development of high performance sustainable electronic and energy storage devices. In this study, electrically conductive flexible composite films based on nanofibrillated cellulose (NFC) and conductive nanotubular fillers were elaborated using environmentally friendly approach. Three conductive fillers were tested, specifically polypyrrole nanotubes (PPy-NT), carbonized polypyrrole nanotubes (C-PPy-NT) and commercially available multi-walled carbon nanotubes (MWCNT) for comparison. The prepared films were assessed for potential applications as electrodes for energy storage devices or protective shields for electromagnetic interference (EMI) shielding in the microwave region. Electrical conductivity measurement revealed that NFC films loaded with PPy-NT (PPy-NT/NFC) exhibited the highest conductivity (1.16 S cm–1) compared to those loaded with C-PPy-NT or MWCNT. PPy-NT/NFC displayed the highest gravimetric capacitance among all tested films reaching 209.7 F g−1 at 10 mV s−1 in a stable potential window (from –0.5 to 0.15 V vs. MSE). When larger potential window (from –0.5 to 0.5 V vs. MSE) was applied, PPy-NT/NFC exhibited fast capacitance decay (to 80% of initial value in 50 cycles). The promising properties of PPy-NT/NFC electrode material were further confirmed in full-cell measurements in symmetric arrangement providing stable performance and 74 F g−1. Meanwhile, C-PPy-NT/NFC and MWCNT/NFC displayed significantly lower capacitances (below 20 F g−1 at 10 mV s−1) but better cycling stability in a larger potential window. The highest shielding efficiency of all NFC-based composites was observed in case of PPy-NT/NFC, reaching 75% in the C-band region. © 2021 Elsevier B.V.

Název v anglickém jazyce

Elaboration and properties of nanofibrillated cellulose composites with polypyrrole nanotubes or their carbonized analogs

Popis výsledku anglicky

Flexible electrically conductive composites based on renewable resources have attracted a growing interest for the development of high performance sustainable electronic and energy storage devices. In this study, electrically conductive flexible composite films based on nanofibrillated cellulose (NFC) and conductive nanotubular fillers were elaborated using environmentally friendly approach. Three conductive fillers were tested, specifically polypyrrole nanotubes (PPy-NT), carbonized polypyrrole nanotubes (C-PPy-NT) and commercially available multi-walled carbon nanotubes (MWCNT) for comparison. The prepared films were assessed for potential applications as electrodes for energy storage devices or protective shields for electromagnetic interference (EMI) shielding in the microwave region. Electrical conductivity measurement revealed that NFC films loaded with PPy-NT (PPy-NT/NFC) exhibited the highest conductivity (1.16 S cm–1) compared to those loaded with C-PPy-NT or MWCNT. PPy-NT/NFC displayed the highest gravimetric capacitance among all tested films reaching 209.7 F g−1 at 10 mV s−1 in a stable potential window (from –0.5 to 0.15 V vs. MSE). When larger potential window (from –0.5 to 0.5 V vs. MSE) was applied, PPy-NT/NFC exhibited fast capacitance decay (to 80% of initial value in 50 cycles). The promising properties of PPy-NT/NFC electrode material were further confirmed in full-cell measurements in symmetric arrangement providing stable performance and 74 F g−1. Meanwhile, C-PPy-NT/NFC and MWCNT/NFC displayed significantly lower capacitances (below 20 F g−1 at 10 mV s−1) but better cycling stability in a larger potential window. The highest shielding efficiency of all NFC-based composites was observed in case of PPy-NT/NFC, reaching 75% in the C-band region. © 2021 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA21-09830S" target="_blank" >GA21-09830S: Pružný nanokřemík pro pokročilé Li-ion baterie</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Synthetic Metals

ISSN

0379-6779

e-ISSN

—

Svazek periodika

278

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000680021100004

EID výsledku v databázi Scopus

2-s2.0-85106899247