Modulating electronic structure of CoS2 nanorods by Fe doping for efficient electrocatalytic overall water splitting

Nano Energy, Год журнала: 2024, Номер unknown, С. 110564 - 110564

Опубликована: Дек. 1, 2024

Язык: Английский

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Synergistic enhancement of overall seawater splitting by atomic doping and heterostructure interface engineering in W–MoS2@FeNi2S4/NF catalyst

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 101, С. 1044 - 1053

Опубликована: Янв. 6, 2025

Язык: Английский

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Fe-doped Ni₃S₂/NiS heterojunction with improved electrocatalytic activity and stability for the alkaline oxygen evolution reaction

Inorganic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The heterostructure catalyst Fe-Ni 3 S 2 /NiS exhibits excellent activity and stability. doped Fe acts as a sacrificial agent in the oxygen evolution reaction (OER), maintaining high of Ni, preventing Ni–S bond degradation.

Язык: Английский

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Self‐Supported Super‐Hydrophilic Interconnected Nanospikes and Particles of MoS₂‐Ni₃S₂/NF with Optimum d‐Band Center for Anion Exchange Membrane Water Electrolyzer

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Abstract There is an imperative need for highly efficient electrocatalysts cost‐effective hydrogen production. Herein, a self‐supported, hybrid composite as bifunctional electrocatalyst introduced. This achieved by in situ growth of MoS 2 ‐Ni 3 S on nickel foam (NF), designated /NF, synthesized facile one‐step hydrothermal synthesis method. /NF exhibits low overpotentials only 187 and 146 mV OER HER, respectively, to achieve current density 10 mA cm −2 1 M KOH. The practical application the designed verified constructing || symmetrical membrane electrode assembly (MEA) 4 working area anion exchange water electrolyzer. system shows continuous electrolysis monitored 48 h duration. For OER, optimum d‐band center −1.66 eV heterostructure calculated from Density Functional Theory (DFT) studies. factors like unique structure electrocatalyst, enhanced hydrophilicity, improved electrochemically accessible number sites (ECASs), center, are expected be primary contributors system's performance. Thus, present finding unveils straightforward approach creating stable advancing commercial realm renewable electrochemical energy conversion.

Язык: Английский

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Ultrafast synthesis of nickel-ruthenium hydroxide ultrathin nanosheets decorated nickel sulfide with efficient overall water splitting

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 690, С. 137336 - 137336

Опубликована: Март 14, 2025

Язык: Английский

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One-step electrodeposition synthesis of composites of NiFeMn alloy and its hydroxide as an efficient bifunctional water splitting catalyst

Journal of Solid State Chemistry, Год журнала: 2025, Номер unknown, С. 125356 - 125356

Опубликована: Апрель 1, 2025

Язык: Английский

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In situ growth and interfacial reconstruction of Mo-doped Ni3S2/VO2 as anti-corrosion electrocatalyst for long-term durable seawater splitting

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 365, С. 124925 - 124925

Опубликована: Дек. 10, 2024

Язык: Английский

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Hollow Fe‐Doped Ni(OH)₂–NiS@Ni(OH)₂ Nanorod Array with Regulated Heterostructural Interface and Band Structure for Expediting Alkaline Electrocatalytic Overall Water Splitting

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 2, 2024

Abstract Aiming to efficiently expedite alkaline overall water splitting (OWS) by addressing challenges such as sluggish kinetics and limited stability, a hollow Fe‐doped Ni(OH) 2 ‐NiS@Ni(OH) nanorod array with surface nanosheets is devised, featuring high‐index (101)‐NiS(211) heterostructural interface an upshifted d ‐band center. This nanoarchitecture intensifies the adsorption interaction of H O OH − reactants on electrocatalyst surface, suitably bonds * intermediate in hydrogen evolution reaction (HER) accelerates electron movement H, minimizes energy requirement rate‐limiting phase ( → O) oxygen (OER) facilitating O─H cleavage optimally adsorbs O, amplifies exposure surface‐active centers, ultimately reduces apparent activation energy. Consequently, overpotentials are low 66.4 mV 254.9 at 10 mA cm −2 , alongside high turnover frequencies 142 s −1 (H ) 279 (O 100 300 mV, respectively, markedly outperforming direct‐electrodeposited analogues. When functioning bifunctional electrode OWS, this material merely requires 1.57 V sustains operation for 168 h, approaching Pt/C||RuO benchmark.

Язык: Английский

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Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1010, С. 177480 - 177480

Опубликована: Ноя. 10, 2024

Язык: Английский

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In-situ construction of integrated transition metals and metal oxides with carbon nanomaterial heterostructures to modulate electron redistribution for boosted water splitting

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 83, С. 107 - 114

Опубликована: Авг. 10, 2024

Язык: Английский

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