Dynamic regulation of ferroelectric polarization using external stimuli for efficient water splitting and beyond

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Regulating the ferroelectric polarization in catalysts is an emerging strategy to advance water splitting reactions, with merits of high charge transfer rate, creation real active sites, and optimizing chemisorption energy.

Language: Английский

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Dual-metal heterogeneous electrode enabling efficient co-electrosynthesis of adipic acid and hydrogen

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 687, P. 432 - 438

Published: Feb. 15, 2025

Language: Английский

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Lewis Acid-Mediated Interfacial Water Supply for Sustainable Proton Exchange Membrane Water Electrolysis

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

The catalyst-electrolyte interface plays a crucial role in proton exchange membrane water electrolysis (PEMWE). However, optimizing the interfacial hydrogen bonding to enhance both catalytic activity and stability remains significant challenge. Here, novel catalyst design strategy is proposed based on hard-soft acid-base principle, employing hard Lewis acids (LAs = ZrO

Language: Английский

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Unveiling the mysteries of hydrogen spillover phenomenon in hydrogen evolution reaction: Fundamentals, evidence and enhancement strategies

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 524, P. 216321 - 216321

Published: Nov. 13, 2024

Language: Английский

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Engineering Ruthenium Species on Metal–organic Frameworks for Water Electrolysis at Industrial Current Densities

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Abstract Developing highly active and stable electrocatalysts for hydrogen production at industrial current densities is pivotal to give an impetus carbon neutrality. Recently, metal–organic frameworks (MOFs) with large surface area adjustable structures have become a class of promising alternative electrocatalysts, while their low conductivity poor stability limit widespread applications. Here, modified strategy proposed stabilize modulate Ruthenium (Ru) species including Ru single atoms (Ru SAs) nanoparticles NPs) on MOFs enhanced evolution reaction (HER). Benefiting from the strong interaction between MOFs, synthesized NiFeRu SA+NP ‐DOBDC (DOBDC: 2,5‐dioxido‐1,4‐benzenedicarboxylate) exhibits extraordinary HER performance overpotentials 25 271 mV 10 1000 mA cm −2 , respectively. Meanwhile, it enables robust high density 1 A over 300 h. Remarkably, assembled anion exchange membrane (AEM) electrolyzer realizes voltage alkaline water electrolysis. In situ analyses demonstrate that optimized H 2 O adsorption dissociation, theoretical calculations indicate SAs NPs accelerate Volmer‐Heyrovsky pathway, synergistically promoted performance. This work presents competitive integrate supported metal platform efficiently drive

Language: Английский

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Tandem electrochemical hydrogen pumps with ion-pair membranes

Joule, Journal Year: 2025, Volume and Issue: 9(2), P. 101848 - 101848

Published: Feb. 1, 2025

Language: Английский

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Atomically Dispersed Catalytic Platinum Anti-Substitutions in Molybdenum Ditelluride

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Atomic defects, e.g., vacancies, substitutions, and dopants, play crucial roles in determining the functionalities of two-dimensional (2D) materials, including spin glass, single-photon emitters, energy storage conversion, due to introduction abnormal charge states noncentrosymmetric distortion. In particular, anti-substitutions are regarded as promising topological defect types, which substitution occurs at opposite sites, fundamentally modifying atomic electronic structures pristine lattices. However, fabrication large-scale remains challenging high formation energies complex reaction paths. Here, we propose an approach for synthesizing atomically dispersed Pt defective 1T'-MoTe2 using electrochemical exfoliation-assisted leaching-redeposition (EELR) method. Atomic-resolution scanning transmission electron microscopy (STEM) imaging reveals that atoms substitute Te forming unconventional Mo-Pt bonds. A rich variety anti-substitution configurations coupling with vacancies have been fabricated by controlled conditions. Density functional theory (DFT) calculations suggest preferentially occupy vacancy sites coupled neighboring stabilizing configurations. The Pt-Te complexes exhibit excellent hydrogen evolution reaction, overpotential only 12.9 mV because paired cause redistribution regulate d-band center active suggested DFT. These findings introduce effective engineering 2D presenting new opportunities precise design features targeted catalytic other advanced applications.

Language: Английский

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Construction of Ru Single-Atom and Cluster/np-Mo synergistic active sites with hydrogen spillover for efficient hydrogen evolution reaction

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161683 - 161683

Published: March 1, 2025

Language: Английский

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Optimization of 3D Metal‐Based Assemblies for Efficient Electrocatalysis: Structural and Mechanistic Studies

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

Published: March 17, 2025

Abstract The commercial utilization of low‐dimensional catalysts has been hindered by their propensity for agglomeration and stacking, greatly minimizing active sites. To circumvent this problem, materials can be assembled into systematic 3D architectures to synergistically retain the benefits constituent nanomaterials, with value‐added bulk properties such as increased surface area, improved charge transport pathways, enhanced mass transfer, leading higher catalytic activity durability compared constituents. hierarchical organization building blocks within structures also enables precise control over catalyst's morphology, composition, chemistry, facilitating tailored design specific electrochemical applications. Despite surge in metal‐based assemblies, there are no reviews encompassing different types assemblies from nanomaterials electrocatalysis. Herein, review addresses gap investigating various self‐supported exploring how electrocatalytic performance elevated through structural modifications mechanistic studies tailor them reactions.

Language: Английский

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Reactive species spillover effect for boosting electrocatalytic reaction

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162560 - 162560

Published: April 1, 2025

Language: Английский

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