Boosting Hydrogen Evolution Reaction by Sequential Modulation of Elementary Steps on Ru–Ni–P-Coated Cu Nanowires

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

Опубликована: Фев. 4, 2025

Язык: Английский

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Finely Tailoring Metal–Support Interactions via Transient High-Temperature Pulses

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Metal–support interactions (MSI) play a crucial role in enhancing the catalytic activity and stability of metal catalysts by establishing stable metal-oxide interface. However, precisely controlling MSI at atomic scale remains significant challenge, as how to construct an optimal is still not fully understood: Both insufficient excessive showed inferior performance. In this study, we propose finely tuning using temporal-precise transient high-temperature pulse heating. Using Pt/CeO2 model system, systematically investigate variations duration atmosphere influence reconstruction metal–support interface MSIs. This leads formation two distinct types MSI: (1) strong (SMSI, Pt@CeO2) (2) reactive (RMSI, Pt5Ce@CeO2), each with unique compositions, structures, electrochemical behaviors. Notably, Pt5Ce@CeO2 RMSI exhibits remarkable performance alkaline hydrogen evolution, showing overpotential −29 mV operation for over 300 h −10 mA·cm–2. Theoretical studies reveal that alloying Pt Ce form Pt5Ce modifies electronic structure Pt, shifting d-band center optimize adsorption dissociation intermediates, thereby reducing reaction energy barrier. Moreover, intimate interaction CeO2 further improves stability. Our strategy enables precise, stepwise, controllable regulation MSIs, providing insights development highly efficient durable heterostructured wide range applications.

Язык: Английский

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Confining asymmetric water hydrogen-bond network to boost photoreduction of CO2 to formaldehyde

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161232 - 161232

Опубликована: Март 1, 2025

Язык: Английский

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Growth kinetics of electrochemically generated hydrogen bubbles at increased pressures

Droplet, Год журнала: 2025, Номер unknown

Опубликована: Март 8, 2025

Abstract Bubble growth kinetics has been attracting vast attention in water electrolysis and other gas evolution reactions, but mostly investigated under ambient pressure. For practical scenarios, bubble is usually carried out high To better understand the kinetics, we monitored hydrogen process at increased pressures during electrochemical production. Unlike common sense that could result smaller size, our results revealed pressure would increase aerophilicity of electrode surface, with decreased contact angle from 111° to 89° for 0.1‒2.0 MPa, detachment size 233 1207 µm, reduced coefficient 230 10.9 0.1 3.0 MPa. The steady high‐pressure are basically governed by as‐formed supersaturation bulk solution, which balance between driving force (current density) enlarged solubility solution Insufficient induce depletion stagnate growth. Further investigation on behaviors should shed light industrial design extended usage life.

Язык: Английский

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Modeling carbon-free energy conversion systems: enhanced hydrazine-assisted hydrogen production with dual-electric-field effect on needle-like Ru/CoP catalysts

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The local electric field weakens the hydrogen-bond network and enhances H 2 O transport. built-in creates electron-deficient sites, improving adsorption of N 4 . Finally, a self-powered zero-carbon energy system was built.

Язык: Английский

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Interfacial water regulation for water-participating electrocatalytic hydrogenation reactions

Chem, Год журнала: 2025, Номер unknown, С. 102533 - 102533

Опубликована: Апрель 1, 2025

Язык: Английский

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D‐Orbital‐Modulated Ruthenium Embedded within Functionalized Hollow MXene Networks for Enhanced Hydrazine‐Assisted Hydrogen Production

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

Abstract Electrochemical green hydrogen production via water splitting is an attractive and sustainable pathway; however, the sluggish kinetics of anodic oxygen evolution reaction still a critical challenge. In this study, effective electrocatalyst engineering approach demonstrated by preparing innovative hybrid ruthenium d‐orbitals‐regulated nanoclusters embedding within functionalized hollow Ti 3 C 2 MXene networks (Ru 0.91 Ni 0.09 ‐N/O‐Ti ) to promote hydrazine‐assisted production. A specific charge redistribution revealed, locally concentrating at interfaces derived from stable Ru(Ni)‐N/O‐Ti coordination d – p orbital hybridization. The transfer effect Ru structure N/O‐Ti tailors electronic features sites enable reasonable adsorption/desorption toward reactant intermediates. requires overpotential only 29.3 mV for cathodic low potential −29.9 hydrazine oxidation reach 10 mA cm −2 , showing excellent stability. system based on electrodes delivers small cell voltages 0.02 V 0.92 industrial current level 1.0 . This work may open new electrocatalysis strategy lab scale industry robust efficient

Язык: Английский

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Advancements in iron-based single atom catalysts and their applications in electrocatalysis

Journal of Power Sources, Год журнала: 2025, Номер 644, С. 237149 - 237149

Опубликована: Апрель 26, 2025

Язык: Английский

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In-situ Pt reduction induced topological transformation of NiFe-MOF for industrial seawater splitting

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2025, Номер 72, С. 211 - 221

Опубликована: Май 1, 2025

Язык: Английский

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Correlation of Structure and Electrocatalytic Performance of Bulk Oxides for Water Electrolysis

Molecules, Год журнала: 2025, Номер 30(11), С. 2391 - 2391

Опубликована: Май 30, 2025

Hydrogen-centered electrochemical technologies play a vital role in sustainable energy conversion and storage. One of the challenges achieving cheap hydrogen is to bridge gap between advanced electrocatalysts highly effective electrodes. The key lies designing with high intrinsic activity understanding structure–activity relationship water electrolysis. Being proposed as promising electrocatalysts, bulk oxides, their compositional crystal structure flexibility, provide good platform for studying correlation electronic also screening superior catalysts In this review, we discuss recent developments oxide relationship. Firstly, present thorough overview advances from both theoretical experimental aspects. Subsequently, highlight design principles guidance promoting performance. Finally, remaining perspectives about field are presented. This review aims electrolysis large-scale green supply.

Язык: Английский

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