Electrochemical performance enhancement of MnO2 nanowires through silver incorporation for next-generation supercapacitors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F24%3AA250383N" target="_blank" >RIV/61988987:17310/24:A250383N - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2024/ma/d4ma00118d" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/ma/d4ma00118d</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4ma00118d" target="_blank" >10.1039/d4ma00118d</a>
Alternative languages
Result language
angličtina
Original language name
Electrochemical performance enhancement of MnO2 nanowires through silver incorporation for next-generation supercapacitors
Original language description
Increased demand for effective energy storage systems emphasizes the urgency to overcome the bottlenecks of existing technology. Supercapacitors (SCs), owing to their high specific power and fast charging/discharging capabilities, are perfect candidates for future energy applications but their low energy density makes them impractical for commercial applications. Because of their high energy density and variable oxidation states, transition metal oxides (TMOs) have great potential as supercapacitor electrode materials. But for practical applications, their poor intrinsic conductivity needs to be improved. Noble metal doping offers a compelling method to raise the conductivity and structural stability of TMOs. Herein, we have prepared AgxMnO2 (x = 0.05, 0.10, and 0.15) to improve the conductivity and structural stability of the electro-active material. FESEM micrographs exhibit cracks on the nanowire (NW) surface by Ag doping, proposing less dead volume. Ag doping also fortified electrode pulverization during charging/discharging cycles by imparting structural stability. These properties enabled Ag0.05MnO2 NWs to demonstrate a specific capacitance of 1027 F g(-1) at a current density of 1 A g(-1). The electrode also retained a capacitance of 93.16% after 10 000 GCD cycles@12 A g(-1) along with 86% rate capability at 9 A g(-1). By tackling critical difficulties such as poor conductivity and structural stability, this study advances energy storage technologies and lays the groundwork for the creation of high-performance supercapacitors for future energy applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Advances
ISSN
2633-5409
e-ISSN
2633-5409
Volume of the periodical
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Issue of the periodical within the volume
5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
6170-6184
UT code for WoS article
001255366100001
EID of the result in the Scopus database
2-s2.0-85197248331