Self‐Standing Metal Organic Framework–Carbon Nanofiber Composites as Bifunctional Electrocatalysts for Rechargeable Zinc‐Air Batteries

ChemistrySelect, Год журнала: 2025, Номер 10(11)

Опубликована: Март 1, 2025

Abstract Metal‐organic framework (MOF)–carbon composite materials are promising candidates for use as electrocatalysts in zinc‐air batteries (ZAB). Electrospun carbon nanofibers (CNFs) particularly advantageous conductive substrates due to their porous and binder‐free architecture. However, achieving stable efficient dispersion of MOFs on CNFs remains a significant challenge. In this study, we present the synthesis electrode comprising nickel‐based metal‐organic decorated over cobalt oxide‐embedded (NM@CCNF), designed self‐standing bifunctional electrocatalyst rechargeable ZABs. The NM@CCNF features unique open flower petal‐like morphology providing abundant active sites oxygen reduction (ORR) evolution reactions (OER). Electrochemical testing demonstrated that exhibited low potential gap (Δ E ) between ORR OER 0.794 V, surpassing individual noble metal catalysts rivaling benchmark Pt/C IrO₂ combinations. assembled ZAB high specific capacity 830 mA h g Zn −1 , peak power density 77.36 mW cm −2 . Long‐term cycling stability tests 200 cycles showed minimal voltage degradation, indicating excellent durability rechargeability. Post‐mortem analysis confirmed reversible formation ZnO during operation, validating battery's These findings highlight candidate next‐generation energy storage systems.

Язык: Английский

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Mott-Schottky heterojunction design in Cu/Fe2N@NC catalyst with interfacial electron redistribution for enhanced oxygen reduction reaction in zinc-air batteries

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 181134 - 181134

Опубликована: Май 1, 2025

Язык: Английский

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Heterointerfacial engineering of N,P-doped carbon nanosheets supported Co/Co2P nanoparticles for boosting oxygen reduction and oxygen evolution reactions towards rechargeable Zn-air battery

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 355 - 363

Опубликована: Ноя. 4, 2024

Язык: Английский

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An effective bi-functional electrocatalyst for electrochemical water splitting using NiCo2O4 nanoparticles decorated with Polypyrrole nanocomposite

Fuel, Год журнала: 2025, Номер 397, С. 135381 - 135381

Опубликована: Апрель 25, 2025

Язык: Английский

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Built-in electric field-driven electron transfer behavior at Ru-RuP2 heterointerface fosters efficient and CO‐resilient alkaline hydrogen oxidation

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124709 - 124709

Опубликована: Окт. 1, 2024

Язык: Английский

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Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

Atomically dispersed metal-nitrogen-carbon materials (AD-MNCs) are considered the most promising non-precious catalysts for oxygen reduction reaction (ORR), but it remains a major challenge simultaneously achieving high intrinsic activity, fast mass transport, and effective utilization of active sites within single catalyst. Here, an AD-MNCs consisting defect-rich Fe-N

Язык: Английский

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Integrating internal electric field in PdRh-Cu2O/Cu nanorods: Revolutionizing low-energy hydrogen production and biomass upgrading

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158847 - 158847

Опубликована: Дек. 1, 2024

Язык: Английский

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