Revealing the Impact of Pulsed Laser-Produced Single-Pd Nanoparticles on a Bimetallic NiCo₂O₄ Electrocatalyst for Energy-Saving Hydrogen Production via Hybrid Water Electrolysis

ACS Catalysis, Год журнала: 2024, Номер 14(5), С. 3320 - 3335

Опубликована: Фев. 16, 2024

Nowadays, the assembling of hybrid water electrolysis using a hydrazine oxidation reaction (HzOR) instead slow anodic oxygen evolution (OER) has been established as favorable technology for efficient hydrogen (H2) production. Nevertheless, it is still critical to develop highly effective bifunctional electrocatalysts both (HER) and HzOR. In this work, we propose facile approach design synthesis single-Pd-nanoparticles-decorated bimetallic NiCo2O4 nanoplates electrocatalyst HER Initially, are synthesized by combination hydrothermal high-temperature calcination. Subsequently, single-Pd nanoparticles with varying proportions decorated on via pulsed laser irradiation (PLI), leading formation Pd/NiCo2O4 composites. The optimized composite shows remarkable electrocatalytic ability low overpotential 294 mV an ultrasmall working potential −6 (vs RHE) HzOR at 10 mA cm–2 in 1 M KOH electrolyte. Thus, overall splitting (OHzS) electrolyzer Pd/NiCo2O4∥Pd/NiCo2O4 system presents current densities 100 respective cell voltages 0.35 0.94 V. Notably, situ/operando Raman spectroscopy confirms surface α-Co(OH)2 during γ-NiOOH Furthermore, density function theory (DFT) calculations demonstrate that decoration Pd onto facilitates optimization adsorption free energy (ΔGH*) enhancement dehydrogenation kinetics. This work introduces strategy fabricating electrocatalysts, potentially useful energy-saving H2

Язык: Английский

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Sustainable energy generation: High-performance NiCo2S4@S-g-C3N4 bifunctional electrocatalyst advances water splitting efficiency

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 68, С. 128 - 138

Опубликована: Апрель 25, 2024

Язык: Английский

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Pulsed Laser-patterned high-entropy single-atomic sites and alloy coordinated graphene oxide for pH-universal water electrolysis

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

We introduce high-entropy single-atom catalysts (HESACs) from FeRuPtNiCoPd HEA on GO via pulsed laser irradiation in liquids. Synergistic interactions and rapid Fe 2+ photoreduction enhance active sites, achieving superior overall water splitting.

Язык: Английский

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Unveiling the Pivotal Role of d_x2−y2 Electronic States in Nickel‐Based Hydroxide Electrocatalysts for Methanol Oxidation

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(25)

Опубликована: Апрель 15, 2024

The anodic methanol oxidation reaction (MOR) plays a crucial role in coupling with the cathodic hydrogen evolution (HER) and enables sustainable production of high-valued formate. Nickel-based hydroxide (Ni(OH)

Язык: Английский

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Cation/Anion-Dual regulation in Na3MnTi(PO4)3 cathode achieves the enhanced electrochemical properties of Sodium-Ion batteries

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 664, С. 381 - 388

Опубликована: Март 8, 2024

Язык: Английский

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The Combination of Electronic Structure and Lattice Strain Engineering for Multi‐Powered Hydrazine‐Assisted Seawater Electrolysis System at High Current Densities

Advanced Energy Materials, Год журнала: 2024, Номер 14(42)

Опубликована: Авг. 5, 2024

Abstract The utilization of hydrazine in aiding water electrolysis presents a promising avenue for achieving highly efficient hydrogen production through energy conversion. Herein, bifunctional electrocatalyst urchin‐like iron, nickle‐codoped cobalt phosphide supported on Ni foam (FeNi‐CoP/NF) is reported. Benefitting from the combined electronic structure and lattice strain engineering by Fe Ni‐ codoping, hydrazine‐assisted seawater assembled with FeNi‐CoP/NF as both electrodes can achieve an industrial‐level current density 1.5 A cm −2 at record‐setting voltage 163 mV 70 °C sustain stable operation hundreds hours environment. existence potential coincidence region lends credibility to feasibility implementing self‐activated electrolysis. Based theoretical calculations, separate synergistic effects are investigated integrated illustration these two strategies enhancing evolution oxidation activity provided. Moreover, innovative multi‐powered generation system featuring direct fuel cell, rechargeable Zn‐hydrazine battery, proposed, underscoring unique advantages reaction its prospective contribution electrochemical conversion technologies powered sustainable sources.

Язык: Английский

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Density-controlled metalloporphyrin with mutated surface via pulsed laser for oxidative refining of alcohols to benzoic acid and H2 production using linear tandem electrolysis

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 350, С. 123907 - 123907

Опубликована: Апрель 24, 2024

Язык: Английский

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Polydopamine-assisted immobilization of metallic nanoparticles confined regionally in bamboo microchannels as continuous-flow microreactors for enhanced catalysis

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152327 - 152327

Опубликована: Май 17, 2024

Язык: Английский

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Tailored Flower-Like Ni-Fe-MOF-Derived oxide Composites: Highly active and durable electrocatalysts for overall water splitting

Fuel, Год журнала: 2024, Номер 372, С. 132112 - 132112

Опубликована: Июнь 17, 2024

Язык: Английский

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In situ Spectroscopy: Delineating the mechanistic understanding of electrochemical energy reactions

Progress in Materials Science, Год журнала: 2025, Номер unknown, С. 101451 - 101451

Опубликована: Фев. 1, 2025

Язык: Английский

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