Targeted doping induces interfacial orientation for constructing surface-functionalized Schottky junctions to coordinate redox reactions in water electrolysis

Advanced Powder Materials, Год журнала: 2024, Номер 3(5), С. 100224 - 100224

Опубликована: Июль 27, 2024

Tuning the surface properties of catalysts is an effective method for accelerating water electrolysis. Herein, we propose a directional doping and interfacial coupling strategy to design two surface-functionalized Schottky junction coordinating hydrogen evolution reaction (HER) oxygen (OER). Directional with B/S atoms endows amphiphilic g-C3N4 significant n-/p-type semiconductor properties. Further Fe3C modulates energy band levels B–C3N4 S–C3N4, thus resulting in functionalized specific surface-adsorption The space-charge region generated by dual modulation induces local "OH−- H+-enriched" environment, selectively promoting kinetic behavior OER/HER. Impressively, designed B–C3N4@Fe3C||S–C3N4@Fe3C pair requires only low voltage 1.52 ​V achieve efficient electrolysis at 10 ​mA ​cm−2. This work highlights potential redox reactions electrolysis, thereby resolving trade-off between catalytic activity stability.

Язык: Английский

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Layered double hydroxide-based nanomaterials for supercapacitors and batteries: Strategies and mechanisms

Progress in Materials Science, Год журнала: 2024, Номер unknown, С. 101410 - 101410

Опубликована: Дек. 1, 2024

Язык: Английский

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Unveiling a Cooperative Mechanism for the Alkaline Hydrogen Evolution Reaction: Role of Built‐in Electric Field

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Abstract The work function has a significant influence on surface charge distribution, particularly when built‐in electric field (BIEF) is present. Recent research focused leveraging BIEFs at the interface of different electronic environments to improve hydrogen production. Therefore, analyzing and correlating parameters such as function, BIEF, Gibbs free energy crucial for understanding reaction mechanism. Herein, p‐n heterojunction CuO‐CuWO 4 created form moderate space‐charge region interface. (∆G) in depletion regime displays behavior that contrasts with bulk region, facilitating evolution (HER). Along interface, ∆G indicates high adsorption affinity protons toward CuO phase desorption CuWO phase. catalyst effectively fine‐tunes its value relative coverage exhibits negative cooperative effect. shows up 80% coverage, maintains proton (−1.05 eV), which gradually decreases −0.05 eV 100% coverage. surpassed commercial Pt/C, demonstrating higher efficiency achieving current density 10 mA cm − 2 an overpotential just 21 mV.

Язык: Английский

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Amorphous electrocatalysts for urea oxidation reaction

Progress in Natural Science Materials International, Год журнала: 2024, Номер 34(2), С. 362 - 375

Опубликована: Апрель 1, 2024

Язык: Английский

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Transition metal-based heterojunctions for alkaline electrocatalytic water splitting

Coordination Chemistry Reviews, Год журнала: 2024, Номер 523, С. 216287 - 216287

Опубликована: Окт. 29, 2024

Язык: Английский

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Effect of Imidazole-based Additives on the Voltage of Dye Sensitized Solar Cells with Cu(II/I) Redox Mediators

Electrochimica Acta, Год журнала: 2025, Номер unknown, С. 145758 - 145758

Опубликована: Янв. 1, 2025

Язык: Английский

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The construction of p-n heterojunction in nanozyme for improved peroxidase-like activity and “point-of-use” water disinfection

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161757 - 161757

Опубликована: Март 1, 2025

Язык: Английский

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Construction of 3D porous MXene-based multiple heterojunction catalyst for efficient water oxidation reaction at high current density

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 691, С. 137441 - 137441

Опубликована: Март 28, 2025

Язык: Английский

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Catalyst modification from a perspective of charge separation and transfer with a built-in electric field for photocatalytic water splitting: a review

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 127, С. 421 - 446

Опубликована: Апрель 15, 2025

Язык: Английский

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Copper-doped strontium metal-organic framework: Dual-function active material for supercapacitor and oxygen evolution reaction

Electrochimica Acta, Год журнала: 2024, Номер 503, С. 144857 - 144857

Опубликована: Авг. 8, 2024

Язык: Английский

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