Polypyrrole-coated thermally activated carbon cloth for high-performing solid-state supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00638401" target="_blank" >RIV/61389013:_____/25:00638401 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsaelm.5c01153" target="_blank" >https://pubs.acs.org/doi/10.1021/acsaelm.5c01153</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsaelm.5c01153" target="_blank" >10.1021/acsaelm.5c01153</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polypyrrole-coated thermally activated carbon cloth for high-performing solid-state supercapacitors

Popis výsledku v původním jazyce

Conducting polypyrrole (PPy) synthesized through oxidative chemical vapor deposition (oCVD) on thermally activated carbon cloth was utilized in producing a PPy-based electrode for high-performing supercapacitors. The PPy deposition time was varied at 30, 60, and 90 min, creating CPPy30, CPPy60, and CPPy90 active materials, and their electrochemical properties were studied. CPPy90 has the highest capacitance at 299.5 mF cm–2 (1497.7 mF cm–3) with its Raman spectra showing a high doping degree, which contributed to its good capacitive behavior. Symmetric (CPPy90//CPPy90) and asymmetric (AC//CPPy90) supercapacitors were fabricated as prototypes. CPPy90//CPPy90 exhibited a maximum capacitance of 46.0 mF cm–2 (115.0 mF cm–3) with an energy density of 4.1 mWh cm–2 (1.0 mWh cm–3) at a power density of 80 mW cm–2 (20 mW cm–3). The electrochemical capacitance of AC//CPPy90 was 168.2 mF cm–2 (560.6 mF cm–3) with an energy density of 15.0 mWh cm–2 (5.0 mWh cm–3) at 80 mW cm–2 (26.7 mW cm–3) power density. AC//CPPy90 has shown better energy storage performance than CPPy90//CPPy90. Therefore, in this study, the low impedance and high capacitance of oCVD-prepared CPPy90 have promoted the development of symmetric and asymmetric PPy-based supercapacitors with good electrochemical performance.

Název v anglickém jazyce

Polypyrrole-coated thermally activated carbon cloth for high-performing solid-state supercapacitors

Popis výsledku anglicky

Conducting polypyrrole (PPy) synthesized through oxidative chemical vapor deposition (oCVD) on thermally activated carbon cloth was utilized in producing a PPy-based electrode for high-performing supercapacitors. The PPy deposition time was varied at 30, 60, and 90 min, creating CPPy30, CPPy60, and CPPy90 active materials, and their electrochemical properties were studied. CPPy90 has the highest capacitance at 299.5 mF cm–2 (1497.7 mF cm–3) with its Raman spectra showing a high doping degree, which contributed to its good capacitive behavior. Symmetric (CPPy90//CPPy90) and asymmetric (AC//CPPy90) supercapacitors were fabricated as prototypes. CPPy90//CPPy90 exhibited a maximum capacitance of 46.0 mF cm–2 (115.0 mF cm–3) with an energy density of 4.1 mWh cm–2 (1.0 mWh cm–3) at a power density of 80 mW cm–2 (20 mW cm–3). The electrochemical capacitance of AC//CPPy90 was 168.2 mF cm–2 (560.6 mF cm–3) with an energy density of 15.0 mWh cm–2 (5.0 mWh cm–3) at 80 mW cm–2 (26.7 mW cm–3) power density. AC//CPPy90 has shown better energy storage performance than CPPy90//CPPy90. Therefore, in this study, the low impedance and high capacitance of oCVD-prepared CPPy90 have promoted the development of symmetric and asymmetric PPy-based supercapacitors with good electrochemical performance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA25-15541S" target="_blank" >GA25-15541S: Nanostrukturované kompozity pro přeměnu a skladování energie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Electronic Materials

ISSN

2637-6113

e-ISSN

2637-6113

Svazek periodika

7

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

7811-7826

Kód UT WoS článku

001545207400001

EID výsledku v databázi Scopus

2-s2.0-105014536275