Interfacial engineering of heterostructured CoP/FeP nanoflakes as bifunctional electrocatalyts toward alkaline water splitting

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 679, P. 20 - 29

Published: Oct. 18, 2024

Language: Английский

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Phosphorus–tungsten dual-doping boosts acidic overall seawater splitting performance over RuO_x nanocrystals

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(41), P. 28023 - 28031

Published: Jan. 1, 2024

Dual-doped ruthenium-based nanocrystals were developed as efficient and stable electrocatalysts for acidic overall seawater splitting with superior activity durability.

Language: Английский

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

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110564 - 110564

Published: Dec. 1, 2024

Language: Английский

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Encapsulation of ruthenium oxide nanoparticles in nitrogen-doped porous carbon polyhedral for pH-universal hydrogen evolution electrocatalysis

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 74, P. 10 - 16

Published: June 12, 2024

Language: Английский

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Iron, Tungsten Dual‐Doped Nickel Sulfide as Efficient Bifunctional Catalyst for Overall Water Splitting

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 25, 2024

Developing low-cost and highly efficient bifunctional catalysts for both the oxygen evolution reaction (OER) hydrogen (HER) is a challenging problem in electrochemical overall water splitting. Here, iron, tungsten dual-doped nickel sulfide catalyst (Fe/W-Ni

Language: Английский

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Interfacial Engineering of Pillared Co(II) Metal–Organic Framework@NiMn-Layered Double Hydroxide Nanocomposite for Oxygen Evolution Reaction Electrocatalysis

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: 64(1), P. 361 - 370

Published: Jan. 2, 2025

Clean energy conversion and storage require simple, economical, effective electrode materials to achieve promising results. The development of high-performance electrocatalysts with adequate stability cost-effectiveness is essential ensure low overpotentials toward the oxygen evolution reaction (OER). Herein, a cobalt-based metal-organic framework 4,4,4-6T14 topology in combination various ratios NiMn-layered double hydroxide (Co-MOF@X%NiMn-LDH, X = 5, 10, 20, 40%) applied as an electrocatalyst for oxidation water. optimum sample, Co-MOF@20%NiMn-LDH nanocomposite, showed overpotential 174 mV at current density 10 mA cm-2 reduced Tafel slope 64 dec-1 1 M KOH, which makes it excellent candidate, significantly superior commercial IrO2 most MOF- LDH-based electrocatalysts. Chronopotentiometry tests OER over several hours confirmed that these have been sufficiently stable. Pillared MOFs can obstruct active entities from NiMn-LDH cubic agglomeration, thus facilitating mass transportation ensuring continuous exposure sites. Accordingly, synthesized composite demonstrates considerable electrocatalytic efficiency OER, consequence porous structure, external surface area, synergistic effects among Co-MOF samples.

Language: Английский

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Cu2Se/SeIn2S van der Waals heterostructure: A direct Z-scheme efficient photocatalyst for solar-driven overall water splitting driven by an enhanced electric field

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162807 - 162807

Published: Feb. 1, 2025

Language: Английский

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Recent Advances and Perspectives on Coupled Water Electrolysis for Energy‐Saving Hydrogen Production

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Overall water splitting (OWS) to produce hydrogen has attracted large attention in recent years due its ecological‐friendliness and sustainability. However, the efficiency of OWS been forced by sluggish kinetics four‐electron oxygen evolution reaction (OER). The replacement OER alternative electrooxidation small molecules with more thermodynamically favorable potentials may fundamentally break limitation achieve production low energy consumption, which also be accompanied value‐added chemicals than or electrochemical degradation pollutants. This review critically assesses latest discoveries coupled various OWS, including alcohols, aldehydes, amides, urea, hydrazine, etc. Emphasis is placed on corresponding electrocatalyst design related mechanisms (e.g., dual hydrogenation N–N bond breaking hydrazine C═N regulation urea inhibit hazardous NCO − NO productions, etc.), along emerging reactions (electrooxidation tetrazoles, furazans, iodide, quinolines, ascorbic acid, sterol, trimethylamine, etc.). Some new decoupled electrolysis self‐powered systems are discussed detail. Finally, potential challenges prospects highlighted aid future research directions.

Language: Английский

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Transforming Adsorbate Surface Dynamics in Aqueous Electrocatalysis: Pathways to Unconstrained Performance

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

Published: Jan. 28, 2025

Abstract Developing highly efficient catalysts to accelerate sluggish electrode reactions is critical for the deployment of sustainable aqueous electrochemical technologies, yet remains a great challenge. Rationally integrating functional components tailor surface adsorption behaviors and adsorbate dynamics would divert reaction pathways alleviate energy barriers, eliminating conventional thermodynamic constraints ultimately optimizing flow within systems. This approach has, therefore, garnered significant interest, presenting substantial potential developing that simultaneously enhance activity, selectivity, stability. The immense promise rapid evolution this design strategy, however, do not overshadow challenges ambiguities persist, impeding realization breakthroughs in electrocatalyst development. review explores latest insights into principles guiding catalytic surfaces enable favorable contexts hydrogen oxygen electrochemistry. Innovative approaches tailoring adsorbate‐surface interactions are discussed, delving underlying govern these dynamics. Additionally, perspectives on prevailing presented future research directions proposed. By evaluating core identifying gaps, seeks inspire rational design, discovery novel mechanisms concepts, ultimately, advance large‐scale implementation electroconversion technologies.

Language: Английский

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MoC_x/CoP Janus Structure Embedded Carbon Frame for Boosting Hydrazine Oxidation and Hydrogen Evolution Reactions

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract The integration of hydrazine electrooxidation (HzOR) and hydrogen evolution reaction (HER) presents an efficient pathway for high‐purity production. However, developing bifunctional catalysts remains challenging the demands multiple active‐centers tailored electronic properties. Here, a unique Janus nano‐catalysts MoC x /CoP embedded on carbon frameworks (MoC /CoP@C) is introduced, featuring dual states (depletion accumulation)driven by charge redistribution within /CoP, acting as active‐sites (DAS) both HER HzOR. Theoretical analysis reveals these independent DAS in significantly enhance catalytic activity Specifically, accumulated electrons at interfaces weaken bonding strength N‐H N 2 H 4 , thereby decreasing dehydrogenation energy barrier while electronic‐deficient Mo sites accelerate * desorption, thus promoting kinetics. This catalyst exhibits ultra‐low potential −73 mV 10 mA cm −2 anodic HzOR, comparable to noble low overpotential 95 cathodic HER. When employed overall splitting (OHzS) system, /CoP@C shows promising commercial potential, with consumption (0.16 V), high Faradaic efficiency (95.4%) long‐term stability. study underscores feasibility designing elucidates mechanistic origins activities.

Language: Английский

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