Synergistic Ni-Mn ferrite/rGO nanocomposites for high-performance supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27730%2F25%3A10259694" target="_blank" >RIV/61989100:27730/25:10259694 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/content/pdf/10.1007/s10854-025-16453-9.pdf?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://link.springer.com/content/pdf/10.1007/s10854-025-16453-9.pdf?utm_source=clarivate&getft_integrator=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10854-025-16453-9" target="_blank" >10.1007/s10854-025-16453-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic Ni-Mn ferrite/rGO nanocomposites for high-performance supercapacitors

Popis výsledku v původním jazyce

To address the growing demand for advanced energy storage systems, Ni-Mn ferrite (Ni-Mn(1-x)Fe2O4) nanoparticles integrated with reduced graphene oxide (rGO) were synthesized via a sol-gel-assisted co-precipitation method. Different concentration ratios of (Ni-Mn(1-x)Fe2O4)/ rGO have been tried with sample codes NMR33, NMR50, and NMR67 for optimization of supercapacitive performance. This hybrid approach aimed to synergistically enhance the electrochemical performance by improving electrical conductivity, surface area, and structural integrity. Comprehensive structural and morphological analyses, conducted using XRD, FESEM, FTIR, and TGA, confirmed the successful formation of the nanocomposites. Electrochemical evaluations, including cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) in a 6 M KOH electrolyte, revealed that the NMR50 composition exhibited the highest specific capacitance of 250 F/g at 1 A/g and retained 97% of its capacitance after 10,000 charge-discharge cycles. This superior performance is attributed to the optimized Ni/Mn ratio and the strong interfacial coupling between the redox-active ferrite phase and the conductive rGO matrix, which facilitates efficient electron transport and ion diffusion. The results underscore the potential of Ni-Mn ferrite/rGO nanocomposites as promising electrode materials for next-generation supercapacitor applications.

Název v anglickém jazyce

Synergistic Ni-Mn ferrite/rGO nanocomposites for high-performance supercapacitors

Popis výsledku anglicky

To address the growing demand for advanced energy storage systems, Ni-Mn ferrite (Ni-Mn(1-x)Fe2O4) nanoparticles integrated with reduced graphene oxide (rGO) were synthesized via a sol-gel-assisted co-precipitation method. Different concentration ratios of (Ni-Mn(1-x)Fe2O4)/ rGO have been tried with sample codes NMR33, NMR50, and NMR67 for optimization of supercapacitive performance. This hybrid approach aimed to synergistically enhance the electrochemical performance by improving electrical conductivity, surface area, and structural integrity. Comprehensive structural and morphological analyses, conducted using XRD, FESEM, FTIR, and TGA, confirmed the successful formation of the nanocomposites. Electrochemical evaluations, including cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) in a 6 M KOH electrolyte, revealed that the NMR50 composition exhibited the highest specific capacitance of 250 F/g at 1 A/g and retained 97% of its capacitance after 10,000 charge-discharge cycles. This superior performance is attributed to the optimized Ni/Mn ratio and the strong interfacial coupling between the redox-active ferrite phase and the conductive rGO matrix, which facilitates efficient electron transport and ion diffusion. The results underscore the potential of Ni-Mn ferrite/rGO nanocomposites as promising electrode materials for next-generation supercapacitor applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

<a href="/cs/project/TN02000025" target="_blank" >TN02000025: Národní centrum pro energetiku II</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

Journal of Materials Science: Materials in Electronics

ISSN

0957-4522

e-ISSN

1573-482X

Svazek periodika

37

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

nestránkováno

Kód UT WoS článku

001648808100010

EID výsledku v databázi Scopus

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