Surface Design Strategy of Catalysts for Water Electrolysis

Small, Год журнала: 2022, Номер 18(27)

Опубликована: Июнь 6, 2022

Abstract Hydrogen, a new energy carrier that can replace traditional fossil fuels, is seen as one of the most promising clean sources. The use renewable electricity to drive hydrogen production has very broad prospects for addressing and environmental problems. Therefore, many researchers favor electrolytic water due its green low‐cost advantages. reaction comprises oxygen evolution (OER) (HER). Understanding OER HER mechanisms in acidic alkaline processes contributes further studying design surface regulation catalysts. catalysts are mainly reviewed defects, doping, alloying, reconstruction, crystal structure, heterostructures. Besides, recent overall splitting also reviewed. Finally, this review paves way rational synthesis materials highly efficient electrocatalysis.

Язык: Английский

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Amorphous/Crystalline Heterostructure Transition-Metal-based Catalysts for High-Performance Water Splitting

Coordination Chemistry Reviews, Год журнала: 2022, Номер 475, С. 214916 - 214916

Опубликована: Окт. 31, 2022

Язык: Английский

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CeO2 as an “electron pump” to boost the performance of Co4N in electrocatalytic hydrogen evolution, oxygen evolution and biomass oxidation valorization

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 325, С. 122364 - 122364

Опубликована: Янв. 3, 2023

Язык: Английский

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Recent advances in interface engineering strategy for highly‐efficient electrocatalytic water splitting

InfoMat, Год журнала: 2022, Номер 5(1)

Опубликована: Окт. 13, 2022

Abstract The hydrogen energy generated by the electrocatalytic water splitting reaction has been established as a renewable and clean carrier with ultra‐high density, which can well make up for shortcomings of conventional sources, such geographical limitations, climatic dependence, wastage. Notably, introduction electrocatalysts enhance efficiency process to generate hydrogen. Particularly, heterostructure constructed coupling multiple components (or phases) have emerged most promising option due well‐known electronic synergistic effects. existing reviews on interface engineering electrocatalyst design mostly focus relationship between heterostructures specific reactions. However, comprehensive overview integration model building, directional synthesis, mechanism rarely reported. To this end, in review, development catalysts is systematically introduced from perspective classification, growth regulation performance based interfacial microenvironment (bonding, configuration, lattice strain, etc.), thereby offering useful insights construction models. Besides, combined current applications strategies, challenges future are discussed relevant solutions proposed. Overall, review serve theoretical reference mechanism, further promote production technologies low consumption high yield. image

Язык: Английский

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Recent Progress of Amorphous Nanomaterials

Chemical Reviews, Год журнала: 2023, Номер 123(13), С. 8859 - 8941

Опубликована: Июнь 26, 2023

Amorphous materials are metastable solids with only short-range order at the atomic scale, which results from local intermolecular chemical bonding. The lack of long-range typical crystals endows amorphous nanomaterials unconventional and intriguing structural features, such as isotropic environments, abundant surface dangling bonds, highly unsaturated coordination, etc. Because these features ensuing modulation in electronic properties, display potential for practical applications different areas. Motivated by elements, here we provide an overview unique general synthetic methods, covered contemporary research nanomaterials. Furthermore, discussed possible theoretical mechanism nanomaterials, examining how properties configurations contribute to their exceptional performance. In particular, benefits well enhanced electrocatalytic, optical, mechanical thereby clarifying structure–function relationships, highlighted. Finally, a perspective on preparation utilization establish mature systems superior hierarchy various is introduced, outlook future challenges opportunities frontiers this rapidly advancing field proposed.

Язык: Английский

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A review on photo-, electro- and photoelectro- catalytic strategies for selective oxidation of alcohols

Journal of Energy Chemistry, Год журнала: 2022, Номер 77, С. 80 - 118

Опубликована: Ноя. 1, 2022

Язык: Английский

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Oxygen Defect Engineering Promotes Synergy Between Adsorbate Evolution and Single Lattice Oxygen Mechanisms of OER in Transition Metal‐Based (oxy)Hydroxide

Advanced Science, Год журнала: 2023, Номер 10(32)

Опубликована: Окт. 9, 2023

The oxygen evolution reaction (OER) activity of transition metal (TM)-based (oxy)hydroxide is dominated by the number and nature surface active sites, which are generally considered to be TM atoms occupying less than half with most being inactive atoms. Herein, based on an in situ competing growth strategy bimetallic ions OH- ions, a facile one-step method proposed modulate defects NiFe-layered double hydroxide (NiFe-LDH)/FeOOH heterostructure, may trigger single lattice mechanism (sLOM). Interestingly, only varying addition H2 O2 , one can simultaneously regulate concentration defects, valence ratio components. proper promote synergy between adsorbate (AEM, redox chemistry) sLOM (oxygen OER NiFe-based (oxy)hydroxide, practically maximizing use as sites. Consequently, optimal NiFe-LDH/FeOOH heterostructure outperforms reported non-noble catalysts electrocatalytic activity, overpotential 177 mV deliver current density 20 mA cm-2 high stability. novel exemplifies versatile approach designing highly TM-LDH-based electrocatalysts for energy environmental applications.

Язык: Английский

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Sulfur vacancies engineered self-supported Co3S4 nanoflowers as an efficient bifunctional catalyst for electrochemical water splitting

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 322, С. 122104 - 122104

Опубликована: Окт. 27, 2022

Язык: Английский

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Electrochemical Oxidation of 5‐Hydroxymethylfurfural on CeO₂‐Modified Co₃O₄ with Regulated Intermediate Adsorption and Promoted Charge Transfer

Advanced Functional Materials, Год журнала: 2023, Номер 33(14)

Опубликована: Янв. 17, 2023

Abstract Electrocatalytic 5‐hydroxymethylfurfural oxidation reaction (HMFOR) can replace the kinetically slow oxygen evolution to yield high value‐added chemicals. In this study, interface engineering is constructed by modifying CeO 2 nanoparticles on Co 3 O 4 nanowires supported nickel foam (NF). The construction of heterointerface facilitate structural catalysts and charge transfer, as a result, successfully synthesized NF@Co /CeO exhibits higher conversion (98.0%), 2,5‐furandicarboxylic acid (FDCA) (94.5%), Faradaic efficiency (97.5%) at low electrolysis potential 1.40 V RHE compared NF@CeO . Density‐functional theory calculations indicate that establishment effectively regulate intermediate adsorption promote electron which greatly reduces activation energy dehydrogenation step in 5‐formyl‐2‐furancarboxylic (FFCA), promotes further FFCA FDCA, thereby improving performance HMFOR. HMFOR behavior effect deeply explored, provides guidance for future design with efficient performance.

Язык: Английский

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Triphasic Ni2P−Fe2P−CoP heterostructure interfaces for efficient overall water splitting powered by solar energy

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 338, С. 123016 - 123016

Опубликована: Июнь 17, 2023

Язык: Английский

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