Microwave quasi-solid-state-constructed low-content Pt on CeO₂ with strong electronic interactions for efficient electrocatalytic acidic overall water splitting

Inorganic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Pt-loaded CeO 2 cubes were designed via a rapid and eco-friendly ultrafast microwave quasi-solid-state approach within 60 s, which exhibited low overpotential of 10 mV to reach mA cm −2 in 0.5 M H SO 4 with excellent long-term stability.

Язык: Английский

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Noble Metal Nanoparticles Anchored on Transition Metal Phosphides for Effective pH‐Universal Hydrogen Evolution

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Constructing electrocatalysts with high activity and low precious metal content is essential for achieving efficient hydrogen production in pH-universal overall water splitting. Herein, five types of noble anchored transition phosphides are analyzed by theoretical derivation. Based on the calculation results, a suitable hybrid screened out Pt nanoparticles CoP nanowires (Pt─CoP) via robust Pt─P─Co bonds. This strong synergy between through interfacial bonds optimizes adsorption key intermediates evolution reaction (HER) wide pH range from 0 to 14. Furthermore, interaction accompanied delicate structure reduces charge transfer resistance, creates abundant active sites, enhances catalyst durability, while facilitating site exposure electron/mass during HER process. Accordingly, synthesized Pt─CoP exhibits overpotentials 79, 26, 18 mV at 10 mA cm-2 acidic, neutral, alkaline media HER, respectively, superior commercial Pt/C benchmarks most reported electrocatalysts. work paves new clue exploit low-Pt-loading HER.

Язык: Английский

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Enhanced pH-universal hydrogen evolution reactions on the Rh/MoO3 electrocatalysts

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163260 - 163260

Опубликована: Апрель 1, 2025

Язык: Английский

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Organic hydrochloride as in-situ corrosion blocker for ultralong-cycling aqueous zinc-based pouch batteries

Journal of Power Sources, Год журнала: 2025, Номер 647, С. 237350 - 237350

Опубликована: Май 14, 2025

Язык: Английский

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An Interlayer Anchored NiMo/MoO₂ Electrocatalyst for Hydrogen Evolution Reaction in Anion Exchange Membrane Water Electrolysis at High Current Density

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract Noble metal‐free electrodes for anion exchange membrane water electrolysis (AEM‐WE) operating at high current densities are critical sustainable hydrogen production. However, the massive amount of bubbles resulted in insufficient mass transfer and unevenly distributed local stress, which poses a major challenge designing an efficient robust evolution catalyst. Herein, facile chemical corrosion method is developed to synthesize interlayer‐anchored NiMo/MoO 2 catalyst on nickel foam (NF) substrate (NiMo/Int/NF) with activity (overpotential 80.2 ± 3.53 mV) durability (stable 5000 h) 1000 mA cm −2 1 m KOH. The interlayer tightly anchors catalytic layer substrate, providing compressive strength strong adhesion mitigate bubble shock density. In situ Raman X‐ray diffraction analyses reveal that heterostructural can accelerate reaction increased pH component utilization. Using NiMo/Int/NF as cathode, assembled noble AEM‐WE device exhibits low cell voltage 1.78 V (significantly lower than Pt/C‐catalyzed (1.94 V)) while also showing excellent stability 3000 h.

Язык: Английский

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Modulating Electronic State and d-Band Center of Mo Atoms for High-Efficient Hydrogen Evolution

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

Язык: Английский

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Cobalt-doped molybdenum carbide nanoparticles embedded in nitrogen-doped carbon nanosheets for efficient pH-universal hydrogen evolution

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 137280 - 137280

Опубликована: Май 1, 2025

Язык: Английский

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Spontaneous Alkaline Water Electrolysis Driven by the “OH‐Baton”

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Abstract Nano‐metal particles integrating with single‐atom catalysts (NMP‐SACs) have been constructed recently for accelerated alkaline hydrogen evolution reaction (HER). However, the design of NMP‐SACs primarily aims at separate adsorption *OH and H*, while neglecting desorption, causing blockage slow kinetics. To address this, Mo 2 C is introduced to (e.g., Pt nanoparticles‐Pt atom, n ‐Pt 1 ) by a “one‐step dual‐confinement pyrolysis” strategy 1@Mo2C , where precisely confined remaining adjacent @Mo C. Experiments calculations demonstrate that acting as an “OH‐baton” helps overcome on accelerating separation H* thus promoting spontaneous water dissociation. Thus, supported achieves significantly lower overpotential ( η 10 = 24 mV) more than seven times higher mass activity (MA 100 4.33 mA µg Pt⁻ in alkaline. The anion‐exchange membrane electrolyzer (AEMWE) delivers low cell voltage 1.91 V durable 120 h electrolysis 1.0 A cm −2 . This work proposes new insight introducing dual‐site catalyst system achieve

Язык: Английский

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Interfacial Engineering of Core/satellite-structured RuP/RuP2 Heterojunctions for Enhanced pH-Universal Hydrogen Evolution Reaction

Chinese Journal of Structural Chemistry, Год журнала: 2024, Номер unknown, С. 100461 - 100461

Опубликована: Ноя. 1, 2024

Язык: Английский

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