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

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(5), P. 100224 - 100224

Published: July 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.

Language: Английский

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

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101410 - 101410

Published: Dec. 1, 2024

Language: Английский

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

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 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.

Language: Английский

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Amorphous electrocatalysts for urea oxidation reaction

Progress in Natural Science Materials International, Journal Year: 2024, Volume and Issue: 34(2), P. 362 - 375

Published: April 1, 2024

Language: Английский

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Transition metal-based heterojunctions for alkaline electrocatalytic water splitting

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216287 - 216287

Published: Oct. 29, 2024

Language: 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, Journal Year: 2025, Volume and Issue: unknown, P. 145758 - 145758

Published: Jan. 1, 2025

Language: 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, Journal Year: 2025, Volume and Issue: unknown, P. 161757 - 161757

Published: March 1, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 691, P. 137441 - 137441

Published: March 28, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 127, P. 421 - 446

Published: April 15, 2025

Language: Английский

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

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 503, P. 144857 - 144857

Published: Aug. 8, 2024

Language: Английский

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