Ultrastable polypyrrole stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) for long-cycle supercapacitor applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00641592" target="_blank" >RIV/61389013:_____/25:00641592 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsapm.5c03208" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.5c03208</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsapm.5c03208" target="_blank" >10.1021/acsapm.5c03208</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrastable polypyrrole stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) for long-cycle supercapacitor applications

Popis výsledku v původním jazyce

Polypyrrole (PPy) is a promising conducting polymer for supercapacitor electrodes, but its structural degradation during repeated cycling limits its long-term stability. Here, we report the design of a composite based on PPy chemically stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) (HPStDVB) microparticles (PPy/HPStDVB) working as a scaffold. This composite possesses a more compact structure, preventing interruptions in the conjugation of PPy. As a result, the PPy/HPStDVB electrode exhibits remarkable electrochemical durability, maintaining its capacitance over 20,000 charge–discharge cycles and demonstrating a dominant capacitive contribution (77.3%) in the hybrid supercapacitor cell. These more stable electrochemical properties of PPy on HPStDVB arise from the interactions of the HPStDVB backbone with PPy, resulting in a more stable structure due to less dynamic functional groups. This study introduces a simple yet efficient strategy for mechanically reinforced conducting-polymer electrodes, providing a new route toward durable, high-performance supercapacitors.

Název v anglickém jazyce

Ultrastable polypyrrole stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) for long-cycle supercapacitor applications

Popis výsledku anglicky

Polypyrrole (PPy) is a promising conducting polymer for supercapacitor electrodes, but its structural degradation during repeated cycling limits its long-term stability. Here, we report the design of a composite based on PPy chemically stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) (HPStDVB) microparticles (PPy/HPStDVB) working as a scaffold. This composite possesses a more compact structure, preventing interruptions in the conjugation of PPy. As a result, the PPy/HPStDVB electrode exhibits remarkable electrochemical durability, maintaining its capacitance over 20,000 charge–discharge cycles and demonstrating a dominant capacitive contribution (77.3%) in the hybrid supercapacitor cell. These more stable electrochemical properties of PPy on HPStDVB arise from the interactions of the HPStDVB backbone with PPy, resulting in a more stable structure due to less dynamic functional groups. This study introduces a simple yet efficient strategy for mechanically reinforced conducting-polymer electrodes, providing a new route toward durable, high-performance supercapacitors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/TH80020001" target="_blank" >TH80020001: Vývoj nových pevných separátorů elektrolytu pro lithium-iontové baterie založených na metalo-organických strukturách</a><br>

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

ACS Applied Polymer Materials

ISSN

2637-6105

e-ISSN

2637-6105

Svazek periodika

7

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

15026-15040

Kód UT WoS článku

001607633300001

EID výsledku v databázi Scopus

2-s2.0-105021848019