Nickel-copper alloying arrays realizing efficient Co-electrosynthesis of adipic acid and hydrogen

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 1, 2024

Язык: Английский

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A review of efficient electrocatalysts for the oxygen evolution reaction at large current density

DeCarbon, Год журнала: 2024, Номер 5, С. 100062 - 100062

Опубликована: Июль 14, 2024

Within the framework of achieving global carbon neutrality, utilizing electrocatalytic water splitting to produce "green hydrogen" holds significant promise as an effective solution. The strategic development economic, efficient, and robust anode oxygen evolution reaction (OER) catalysts is one imminent bottlenecks for scalable application electrolyzing into hydrogen oxygen, particularly under actual yet harsh operating conditions such large current density (LCD). In this review, we intend summarize advances challenges in understanding OER at LCD. Initially, impact LCD on electron transfer, mass transportation efficiency catalyst stability identified summarized. Furthermore, five basic principles design, namely dimension materials, surface chemistry, creation transfer pathways, synergy among nano-, micro-, macroscale structures, catalyst-support interaction, are systematically discussed. Specifically, correlation between synergistic function multiscale structures interaction highlighted direct improvements durability Finally, outlook prospected further our these topics provide related researchers with potential research areas.

Язык: Английский

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Agglomeration inhibition engineering of nickel–cobalt alloys by a sacrificial template for efficient urea electrolysis

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 663, С. 1019 - 1027

Опубликована: Март 2, 2024

Язык: Английский

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Ru nanoparticles immobilized on self-supporting porphyrinic MOF/nickel foam electrode for efficient overall water splitting

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 57, С. 408 - 419

Опубликована: Янв. 11, 2024

Язык: Английский

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Efficient Electrocatalytic Oxidation of Glycerol to Formate Coupled with Nitrate Reduction over Cu‐Doped NiCo Alloy Supported on Nickel Foam

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(46)

Опубликована: Авг. 12, 2024

Abstract Electrooxidation of biomass‐derived glycerol which is regarded as a main byproduct industrial biodiesel production, an innovative strategy to produce value‐added chemicals, but currently showcases slow kinetics, limited Faraday efficiency, and unclear catalytic mechanism. Herein, we report high‐efficiency electrooxidation into formate via Cu doped NiCo alloy catalyst supported on nickel foam (Cu−NiCo/NF) in coupled system paired with nitrate reduction. The designed Cu−NiCo/NF delivers only 1.23 V vs . RHE at 10 mA cm −2 , record efficiency 93.8 %. superior performance ascribed the rapid generation Ni III −OOH Co species favorable coupling surface *O reactive intermediates. Using bifunctional catalyst, synchronously produces NH 3 formate, showing 290 mV lower than hydrogen evolution reaction, together excellent long‐term stability for up 144 h. This work lays out new guidelines reliable strategies from design electrochemical refinery.

Язык: Английский

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

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

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Modulation of hydroxymethyl/aldehyde groups activation on V2O3 decorated CuCo for 5-hydroxymethylfurfural electrooxidation

Chemical Engineering Journal, Год журнала: 2024, Номер 485, С. 149774 - 149774

Опубликована: Фев. 16, 2024

Язык: Английский

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V‐Doping Strategy Induces the Construction of the Functionally Complementary Ru₂P/V‐RuP₄ Heterostructures to Achieve Amperometric Current Density for HER

Advanced Functional Materials, Год журнала: 2024, Номер 34(28)

Опубликована: Март 13, 2024

Abstract It is a great challenge to induce the formation of RuP 4 phase and realize construction metal‐rich phase/phosphorus‐rich phase‐ruthenium phosphide heterostructure by directional regulation proportion P metal atoms. The ultra‐high conductivity Ru 2 excellent ability V‐doped absorb/desorb H* are confirmed density functional theory (DFT) calculations, which laid theoretical foundation for unique P/V‐RuP structure accelerate HER reaction kinetics. This work innovatively uses V‐doping strategy with high intrinsic activity, finally construct V‐Ru x y nanosheets rich Ru/Ru heterostructures. Thanks optimization V dopants, catalyst only needs 180 mV obtain an industrial‐grade current 1 A cm −2 . In summary, this provides new idea design performance ruthenium‐based catalysts.

Язык: Английский

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In situ construction of layered transition metal phosphides/sulfides heterostructures for efficient hydrogen evolution in acidic and alkaline media

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151693 - 151693

Опубликована: Апрель 26, 2024

Язык: Английский

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Modulating Ni–S coordination in Ni₃S₂ to promote electrocatalytic oxidation of 5-hydroxymethylfurfural at ampere-level current density

Chemical Science, Год журнала: 2024, Номер 15(30), С. 12047 - 12057

Опубликована: Янв. 1, 2024

Ni 3 S 2 /NF with stable and short Ni–S bonds as well a tunable coordination environment of sites remarkably promotes the electrooxidation performance HMF.

Язык: Английский

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