Vacuum-filtered MXene/carbon nanotube composite films for Li-ion capacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63597018" target="_blank" >RIV/70883521:28610/25:63597018 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsomega.5c05174" target="_blank" >https://pubs.acs.org/doi/10.1021/acsomega.5c05174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsomega.5c05174" target="_blank" >10.1021/acsomega.5c05174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vacuum-filtered MXene/carbon nanotube composite films for Li-ion capacitors

Popis výsledku v původním jazyce

MXene has garnered significant attention for its applications in electrochemical energy storage devices, such as supercapacitors and Li-ion capacitors, owing to its high electrical conductivity and relatively high capacitance/capacity in both aqueous and organic electrolytes. Utilizing its two-dimensional (2D) structure, this study prepared vacuum-filtered MXene/carbon nanotube (MXene/CNT) composite films for Li-ion capacitors. The incorporation of CNTs plays a critical role in mitigating the restacking of MXene flakes and enhancing the structural integrity of the films. The MXene/CNT films were first characterized by using various physicochemical methods and evaluated in electrochemical half-cells. A Li-ion capacitor was subsequently fabricated by using the MXene/CNT-12% film as the negative electrode and mesoporous carbon as the positive electrode. The fabricated Li-ion capacitor demonstrates a specific capacitance of 26 F g–1, an energy density of 40.2 Wh kg–1, and a power density of 375 W kg–1at a current density of 0.5 A g–1. However, the electrochemical performance of the device is still limited by the layer-by-layer architecture of the MXene-based films, which hinders the efficient transport of electrolyte ions vertically through the layers.

Název v anglickém jazyce

Vacuum-filtered MXene/carbon nanotube composite films for Li-ion capacitors

Popis výsledku anglicky

MXene has garnered significant attention for its applications in electrochemical energy storage devices, such as supercapacitors and Li-ion capacitors, owing to its high electrical conductivity and relatively high capacitance/capacity in both aqueous and organic electrolytes. Utilizing its two-dimensional (2D) structure, this study prepared vacuum-filtered MXene/carbon nanotube (MXene/CNT) composite films for Li-ion capacitors. The incorporation of CNTs plays a critical role in mitigating the restacking of MXene flakes and enhancing the structural integrity of the films. The MXene/CNT films were first characterized by using various physicochemical methods and evaluated in electrochemical half-cells. A Li-ion capacitor was subsequently fabricated by using the MXene/CNT-12% film as the negative electrode and mesoporous carbon as the positive electrode. The fabricated Li-ion capacitor demonstrates a specific capacitance of 26 F g–1, an energy density of 40.2 Wh kg–1, and a power density of 375 W kg–1at a current density of 0.5 A g–1. However, the electrochemical performance of the device is still limited by the layer-by-layer architecture of the MXene-based films, which hinders the efficient transport of electrolyte ions vertically through the layers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

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

ACS Omega

ISSN

2470-1343

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

32

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

36527-36535

Kód UT WoS článku

001543642200001

EID výsledku v databázi Scopus

2-s2.0-105013877976