Experimental investigation on the electrodeposited nickel-based dichalcogenides for the efficient overall water splitting

Renewable Energy, Год журнала: 2024, Номер 228, С. 120645 - 120645

Опубликована: Май 11, 2024

Язык: Английский

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Nickel–cobalt oxide nanoparticles as superior electrocatalysts for enhanced coupling hydrogen evolution and selective ethanol oxidation reaction

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(28), С. 17252 - 17259

Опубликована: Янв. 1, 2024

The selective oxidation of organic small molecules not only promotes cathodic hydrogen production, but also acts as an alternative reaction to the anodic oxygen evolution electrolytic water, producing value-added products at anode.

Язык: Английский

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Research advances in doped carbon electrocatalysts derived from biomass

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159694 - 159694

Опубликована: Янв. 1, 2025

Язык: Английский

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Property–Performance Relationship of Waste Floral Foam‐Derived Nanoporous Carbon as Metal‐Free Oxygen Evolution Reaction and Hydrogen Evolution Reaction Electrocatalyst: Implications of N and S Doping

Energy Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Designing electrocatalysts with high‐performance potential requires a thorough investigation of the relationships between property changes and electrocatalytic activity. This study compares effect N‐doping N, S‐codoping on properties waste floral foam derived pristine nanoporous carbon to enhance modulates textural, structural, chemical that are preferable oxygen evolution reaction (OER) hydrogen (HER) performance. S‐codoped having large surface area (1231 m 2 g −1 ), higher content defects, OH−, CO, pyridinic N exhibits superior OER HER activity overpotentials 290 −180 mV, respectively at 10 mA cm −2 , emphasizing synergetic dual atoms nitrogen (N) sulfur (S) in enhancing The work proposed here presents implementation “waste‐to‐energy” through repurposing into as metal‐free bifunctional electrocatalyst for HER.

Язык: Английский

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ZIF-67 derived superhydrophilic Fe-CoP/Ni2P@NC to construct self-supported electrode for boosting electrochemical water splitting

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179796 - 179796

Опубликована: Март 1, 2025

Язык: Английский

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ZIF-67-Derived CoFe₂O₄/NiCo₂O₄@NC/CC with Oxygen-Enriched Vacancy for High-Performance Electrocatalyst toward Oxygen Evolution Reaction

Energy & Fuels, Год журнала: 2024, Номер 38(8), С. 7218 - 7230

Опубликована: Апрель 2, 2024

Oxygen evolution reaction (OER) impedes the electrochemical water splitting for H2 production, ascribing to depressed kinetics of four proton-coupled transfer process. Transition metal oxides, especially bimetallic have been proven be promising OER electrocatalysts due their part unoccupied d-band characteristics. More interestingly, oxygen vacancies (Ov) easily constructed in transition oxides can modulate electron structures and thereby boost performance. However, most synthesized processes involving vacancy engineering, such as atom dopant, chemical/electrochemical reduction, H2/Ar-dependent calcination, are energy-intensive time-consuming, largely hampering commercial applications. Herein, we suggest a simple facile strategy fabricating double spinel with abundant by calcinating Ni/Fe@ZIF-67/CC precursor under nonoxidation condition. The obtained Ov-CF1N2O@NC/CC-550 vast exhibits excellent performance, representing lower overpotential 185 mV at 10 mA cm–2, smaller Tafel slope 47.3 dec–1, well faster interface (Rct = 0.7336). Theoretical calculations further confirm that activity strongly corresponds center active sites on Ov-CoFe2O4 (311) model decreased Gibbs energy barrier. work might shed light engineering via inspire smart design multimetallic oxide high

Язык: Английский

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Spherical cluster heterojunction engineering of NiFeP/g-C3N4 for efficient oxygen evolution reaction in alkaline solution

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 674, С. 266 - 278

Опубликована: Июнь 14, 2024

Язык: Английский

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Fe-modified porous biochar derived from tea waste as a high-performance catalyst for oxygen evolution reaction in water splitting

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 106, С. 353 - 365

Опубликована: Фев. 4, 2025

Язык: Английский

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Replace Platinum for Hydrogen Evolution Reaction in the Cathode of Proton Exchange Membrane Water Electrolyzers

SusMat, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

ABSTRACT The growing global energy demand and environmental concerns like greenhouse gas emissions call for clean solutions. Hydrogen energy, with high caloric value low impact, is a promising alternative, especially when produced via proton exchange membrane water electrolysis (PEMWE). This process relies on the hydrogen evolution reaction (HER) oxygen (OER), both requiring efficient electrocatalysts. Platinum (Pt), most effective HER catalyst, limited by cost scarcity, prompting research into Pt alternatives ruthenium‐based, transition metal derivatives, metal‐free catalysts that balance cost, efficiency, stability. review explores mechanisms, Pt‐free catalyst innovations, impact of structural interfacial electrode optimization performance in acidic media. It also examines electrochemical evaluation techniques, material characterization, role machine learning design. By providing framework development, this supports advancements sustainable technologies.

Язык: Английский

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Interfacial electron redistribution through the Ru-N-Fe bond to stabilize high-valence metal sites for efficient electrocatalytic oxygen evolution

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122656 - 122656

Опубликована: Фев. 1, 2025

Язык: Английский

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