Enhanced electrochemical properties of multiwalled carbon nanotubes modified with silver nanoparticles for energy storage application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10255418" target="_blank" >RIV/61989100:27360/24:10255418 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0254058424003250" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0254058424003250</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchemphys.2024.129200" target="_blank" >10.1016/j.matchemphys.2024.129200</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhanced electrochemical properties of multiwalled carbon nanotubes modified with silver nanoparticles for energy storage application

Popis výsledku v původním jazyce

This work reports an easy, straightforward, and cost-effective method to synthesize a composite material using multiwalled carbon nanotubes (MWCNTs) and silver nanoparticles (Ag NPs) for application as an electrode in supercapacitors. The objective of this work was to enhance the charge transfer mechanism in supercapacitor cells by introducing the conductive particles in the MWCNT framework. The pivotal studies, like scanning (SEM), and transmission (TEM) electron microscopy, X-ray diffraction (XRD), Raman, and X-ray photoelectron (XPS) spectroscopy confirmed the formation of the composite as well as a successful deposition of Ag NPs on MWCNT. The surface area of the composite was evaluated by using the N2 adsorption-desorption studies and it was found to be of the order of 358 m2 gMINUS SIGN 1. Electrochemical studies were performed using a two-electrode system. Magnesium ion-based polymer gel electrolyte was used as an electrolyte material. The single electrode-specific capacitance was observed to be TILDE OPERATOR+D9131.9 F gMINUS SIGN 1 with power density and energy density values of TILDE OPERATOR+D914.4 kW kgMINUS SIGN 1 and 1.2 Wh kgMINUS SIGN 1, respectively, at a current density of 0.46 A gMINUS SIGN 1. The cell was stable up to TILDE OPERATOR+D915000 charge-discharge cycles with TILDE OPERATOR+D9196% of capacitance retention at the end of 5000 cycles. (C) 2024 Elsevier B.V.

Název v anglickém jazyce

Enhanced electrochemical properties of multiwalled carbon nanotubes modified with silver nanoparticles for energy storage application

Popis výsledku anglicky

This work reports an easy, straightforward, and cost-effective method to synthesize a composite material using multiwalled carbon nanotubes (MWCNTs) and silver nanoparticles (Ag NPs) for application as an electrode in supercapacitors. The objective of this work was to enhance the charge transfer mechanism in supercapacitor cells by introducing the conductive particles in the MWCNT framework. The pivotal studies, like scanning (SEM), and transmission (TEM) electron microscopy, X-ray diffraction (XRD), Raman, and X-ray photoelectron (XPS) spectroscopy confirmed the formation of the composite as well as a successful deposition of Ag NPs on MWCNT. The surface area of the composite was evaluated by using the N2 adsorption-desorption studies and it was found to be of the order of 358 m2 gMINUS SIGN 1. Electrochemical studies were performed using a two-electrode system. Magnesium ion-based polymer gel electrolyte was used as an electrolyte material. The single electrode-specific capacitance was observed to be TILDE OPERATOR+D9131.9 F gMINUS SIGN 1 with power density and energy density values of TILDE OPERATOR+D914.4 kW kgMINUS SIGN 1 and 1.2 Wh kgMINUS SIGN 1, respectively, at a current density of 0.46 A gMINUS SIGN 1. The cell was stable up to TILDE OPERATOR+D915000 charge-discharge cycles with TILDE OPERATOR+D9196% of capacitance retention at the end of 5000 cycles. (C) 2024 Elsevier B.V.

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

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

—

Svazek periodika

317

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

001222547000001

EID výsledku v databázi Scopus

2-s2.0-85188422555