High‐Entropy Alloys and Oxides as Supercapacitor Electrodes: A Structural and Electrochemical Perspective for Energy Storage

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract This study investigates the performance of high entropy alloys [Fe 3 Cr Mn 2 NiV, HEA)] and oxides [(Fe NiV)O 4 , HEO)] as electrode materials for supercapacitors. HEA is synthesized through mechanical alloying, followed by HEO forming via an oxidation process. XRD results demonstrate comprises both amorphous crystalline phases, whereas has entirely structure. SEM analyses showed exhibits larger irregular particles, displays a smaller spherical morphology. EPR revealed significant changes in defect structures unpaired electron configurations during transition from to HEO. prone diffusion‐controlled processes due their regular structure strong magnetic interactions; however, capacitive behavior based on surface redox reactions pseudo‐capacitive mechanisms oxygen vacancies. CV that contributes more reactions, while GCPL suggested demonstrated superior energy density (40.8 Wh kg −1 ) power (14.3 kW ). Impedance exhibited reduced internal resistance enhanced ion conductivity, higher processes. In conclusion, exhibit distinct storage mechanisms, these can be optimized supercapacitor applications.

Язык: Английский

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Superior supercapattery performance enabled by MnS/Fe2O3 nanosheets and theoretical evaluation of contributing currents

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114171 - 114171

Опубликована: Март 1, 2025

Язык: Английский

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CTAB assisted in the synthesis of scandium doped-induced oxygen vacancy porous CoMoO4 positive electrode and MoO3-CNTs negative electrode to construct ultra-high performance supercapacitors

Journal of Energy Storage, Год журнала: 2025, Номер 121, С. 116583 - 116583

Опубликована: Апрель 11, 2025

Язык: Английский

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Facile one-step preparation of Ni-doped MIL-53(Fe) metal–organic frameworks for efficient hybrid supercapacitor performance

New Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Nickel ions were incorporated into MIL-53(Fe) framework to design a nickel-doped iron-based MOF (MIL-53(Fe)-Ni), and used as an efficient electrode improve supercapacitor performance.

Язык: Английский

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Nanoarchitectonics with redox active site modulation in bimetallic MIL-125(Ti, Mn) MOF for enhanced supercapacitor performance

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180753 - 180753

Опубликована: Май 1, 2025

Язык: Английский

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Reduced graphene oxide and fullerene-coated Mn-Doped ZrO₂: A synergistic approach to advanced supercapacitors

Journal of Electroceramics, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

Язык: Английский

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Fabrication of Symmetric PANI/CeVO4 Nanocomposites Supercapacitor Device: Electrochemical Characterization and Performance Evaluation

Electrochimica Acta, Год журнала: 2025, Номер unknown, С. 146512 - 146512

Опубликована: Май 1, 2025

Язык: Английский

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Enhanced supercapacitor performance with cerium-doped polypyrrole nanofibers

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Incorporation of cerium ions into the polypyrrole (PPy:Ce) nanofiber matrix enhanced redox functionality and structural properties. Electrochemical tests in a two-electrode setup showed improved capacitance, energy density long-term stability.

Язык: Английский

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