Designing a high-performance electrode leveraging dual-material synergy in a nanoarchitectural framework: Progressing towards supercapacitors with enhanced energy density
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F25%3A43976033" target="_blank" >RIV/49777513:23640/25:43976033 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jallcom.2025.182267" target="_blank" >https://doi.org/10.1016/j.jallcom.2025.182267</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2025.182267" target="_blank" >10.1016/j.jallcom.2025.182267</a>
Alternative languages
Result language
angličtina
Original language name
Designing a high-performance electrode leveraging dual-material synergy in a nanoarchitectural framework: Progressing towards supercapacitors with enhanced energy density
Original language description
Exploring highly electroactive electrode materials with compatible nanostructures, tunable properties, and strong conductive networks is vital for supercapacitors (SCs). However, comprehending this complex area remains a significant challenge. In this work, we report the synthesis of a hierarchical NiCo2O4@NiMoO4 (NCO@NMO) hybrid nanoarchitecture utilizing a cost-effective hydrothermal approach and subsequentannealing. This is achieved through facile and scalable in situ fabrication techniques that yield an electrode material suitable for advanced high-energy hybrid supercapacitors (HSCs). The unique hybrid nanoarchitecture is engineered to provide an effective, open-porous framework that facilitates ion diffusion and enables rapid electron transport. The NCO@NMO hybrid nanoarchitecture electrode exhibits a battery-type redox mechanism, achieving a peak specific capacitance of 1984 F g 1 at a current density of 1 A g 1 in an aqueous electrolyte, surpassing the performance of its individual components. Enhanced electrochemical performance is achieved by increasing the density of electroactive sites and conductivity through surface modifications, thereby facilitating rapid redox kinetics. Notably, the fabricated HSC device, with a configuration of NCO@NMO//activated carbon, demonstrates an impressive power density of 42.56 kW kg 1, complemented by an energy density of 75.04 Wh kg 1, and exhibits excellent cyclic stability, retaining up to 89.62 ± 1.19 % of its capacitance, even after 20,000 cycles. The high energy density and considerable cyclic stability are comparatively higher than those of conventional SCs and even approach the values of commercial batteries.
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Quantum materials for applications in sustainable technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN
0925-8388
e-ISSN
1873-4669
Volume of the periodical
1037
Issue of the periodical within the volume
AUG 10 2025
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
nestránkováno
UT code for WoS article
001540292600001
EID of the result in the Scopus database
2-s2.0-105010567019