Recent developments in transition metal oxide-based electrode composites for supercapacitor applications

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 81, P. 110430 - 110430

Published: Jan. 11, 2024

Language: Английский

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Self-cleaning transparent pn junction in CuAlO2/WO3 via high entropy perovskite oxide La(Cu0.2Cr0.2Ni0.2Fe0.2Co0.2)O3 transition layer for enhanced photovoltaic conversion

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 487, P. 150727 - 150727

Published: March 26, 2024

Language: Английский

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Overview of high-entropy oxide ceramics

Materials Today, Journal Year: 2024, Volume and Issue: 77, P. 92 - 117

Published: July 2, 2024

Language: Английский

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Polyoxometallate Cluster Induced High-Entropy Oxide Sub-1 nm Nanosheets as Photoelectrocatalysts for Zn–Air Batteries

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(15), P. 10735 - 10744

Published: April 4, 2024

The lack of highly efficient and inexpensive catalysts severely hinders the large-scale application Zn–air batteries (ZABs). High-entropy oxides (HEOs) exhibit unique structures attractive properties; thus, they are promising to be used in ZABs. However, conventional high-temperature synthesis methods tend obtain microscale HEOs with a lower exposure rate active sites. Here, we report facile solvothermal strategy for preparing two-dimensional (2D) HEO sub-1 nm nanosheets (SNSs) induced by polyoxometalate (POM) clusters. Taking advantage special 2D structure precise element regulation, these HEOs-POM SNSs enhanced bifunctional oxygen evolution reduction reaction activity under light irradiation. Further applying ZABs as cathode catalysts, CoFeNiMnCuZnOx-phosphomolybdic acid SNSs-based deliver low charge/discharge voltage gap 0.25 V at 2 mA cm–2 Meanwhile, it could maintain an ultralong-term stability 1600 h 930 10 cm–2. fine control provide opportunities solve problems intrinsic activity, limited sites, instability air cathodes

Language: Английский

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High-entropy oxides for energy-related electrocatalysis

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: 4, P. 100039 - 100039

Published: Jan. 17, 2024

Electrocatalysis plays a crucial role in the conversion and storage of renewable energy, offering significant potential for addressing energy crisis environmental concerns. High-entropy oxides (HEOs), class emerging functional materials, have gained increasing attention electrocatalysis due to their stable crystal structure, exceptional geometric compatibility, unique electronic balance factors, abundant active sites. In this comprehensive review, we present recent advancements utilizing HEOs as catalysts various energy-based electrocatalytic reactions. We begin with an overview that includes definitions, fundamental properties, theoretical investigations. Subsequently, describe different synthetic methods while highlighting two newly-developed techniques. Furthermore, extensively discuss developments HEO-based electrocatalysts diverse structures such rock-salt-type, rutile-type, spinel-type, perovskite-type, other specially-structured HEOs. Special emphasis is placed on designed strategies aimed at enhancing performance exploring correlations between structure/ composition performance. Finally, provide concluding remarks along perspectives future opportunities exciting field.

Language: Английский

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Research Progress of High-Entropy Oxides as Oxygen Evolution Reaction Catalysts

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(8), P. 6659 - 6678

Published: April 2, 2024

Equimolar or nearly molar mixtures of five more metals are used to create high-entropy oxides (HEOs). HEOs also possess the kinetic slow diffusion effect, structural lattice distortion, thermodynamic and cocktail effect. Consequently, a growing number scientists investigating oxides. High active site density, low overpotential, entropic stabilization effects main reasons why now show good electrocatalytic oxygen evolution reaction. However, complexity elemental composition, organization, surface morphology limits use HEOs. The development mechanisms behind OER reviewed in this work, along with description response pathways evaluation standards. performance diverse organizational structures is research because come variety kinds. Additionally, when utilized as carriers, trend examined. Lastly, potential future problems opportunities for HEO electrocatalysts discussed.

Language: Английский

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Dual-confinement regulating ternary metal-oxide activity sites derived from Co-MOF for enhanced electrocatalytic activity for glucose oxidation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151398 - 151398

Published: April 17, 2024

Language: Английский

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Low‐Cost Self‐Reconstructed High Entropy Oxide as an Ultra‐Durable OER Electrocatalyst for Anion Exchange Membrane Water Electrolyzer

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 31, 2024

Future energy loss can be minimized to a greater extent via developing highly active electrocatalysts for alkaline water electrolyzers. Incorporating an innovative design like high entropy oxides, dealloying, structural reconstruction, in situ activation potentially reduce the barriers between practical and theoretical potentials. Here, Fd-3m spinel group oxide is developed simple solvothermal calcination approach. The (FeCoMnZnMg)

Language: Английский

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High entropy spinel oxides (CrFeMnNiCox)3O4 (x = 2, 3, 4) nanoparticles as anode material towards electrochemical properties

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 71, P. 108211 - 108211

Published: July 1, 2023

Language: Английский

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Coupling high entropy oxide with hollow carbon spheres by rapid microwave solvothermal strategy for boosting oxygen evolution reaction

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 179 - 188

Published: Sept. 9, 2023

Language: Английский

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