Reductive Supramolecular In Situ Construction of Nano‐Platinum Effectively Couples Cathodic Hydrogen Evolution and Anodic Alcohol Oxidation

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

The deployment of high-performance catalysts and the acceleration anodic reaction kinetics are key measures to achieve maximum energy efficiency in overall water electrolysis hydrogen production systems. Here, an innovative strategy is developed by directly constructing a supramolecular framework embedded with boron clusters cucurbituril as reducing agent. This approach enabled situ conversion Pt⁴⁺ into highly dispersed, small-sized nano-platinum, which subsequently distributed on boron-carbon-nitrogen (BCN) matrix. resulting Pt/BNHCSs catalyst demonstrates ability facilitate electrocatalytic splitting for across multiple scenarios while simultaneously accelerating methanol oxidation kinetics, significantly outperforming commercial Pt/C various aspects. cathodic evolution-anodic coupling system constructed using greatly reduces consumption system. In attenuated total reflection Fourier transform infrared online differential electrochemical mass spectrometry reveals that interface enhances H₂O adsorption promotes CH₃OH→CO process, density functional theory calculations indicated BCN support facilitated evolution H₂ CH₃OH CO, elucidating mechanism promoted oxidation.

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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MnSnO3 perovskite boosted P-rGo-MoSe2-MnSnO3 multiple-interface nanocomposite for efficient overall water splitting

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180650 - 180650

Опубликована: Апрель 1, 2025

Язык: Английский

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Review of Nanocatalysts Comprising Single Atoms and Nanoparticles for Electrochemical Water Splitting

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

Язык: Английский

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Interaction of Borophene and Cobalt Phosphate for Electrocatalytic Urea Oxidation Reaction

ChemCatChem, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract To generate hydrogen sustainably, it is crucial to substitute the kinetically slower oxygen evolution reaction (OER) with urea oxidation (UOR) at anode. This necessitates designing of highly active and stable Co‐based electrocatalysts for UOR. Herein, influence electronic modulation in synthesized borophene–cobalt phosphate catalyst (B@CP) generating sites UOR was studied. The addition alkaline electrolyte as a sacrificial agent significantly reduced potential required by B@CP compared OER attaining fixed current density. achieved densities 10 mA cm −2 100 potentials 1.31 V 1.40 V, respectively. Adding borophene also modified its morphology charge transport, enhancing kinetics, reducing transfer resistance, exposing more electrochemically sites. Moreover, displayed long‐term stability 50 h. work will encourage development innovative strategies tuning properties different transition metal‐based via various energy conversion applications.

Язык: Английский

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Wurster ligand-based metal–organic polymers for efficient electrocatalytic oxidation of methanol

Chemical Engineering Journal, Год журнала: 2025, Номер 515, С. 163771 - 163771

Опубликована: Май 14, 2025

Язык: Английский

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