Improving the Oxygen Evolution Activity of Layered Double‐Hydroxide via Erbium‐Induced Electronic Engineering

Small, Год журнала: 2022, Номер 19(5)

Опубликована: Ноя. 29, 2022

Layered double-hydroxide (LDH) has been considered an important class of electrocatalysts for the oxygen evolution reaction (OER), but adsorption-desorption behaviors intermediates on its surface still remain unsatisfactory. Apart from transition-metal doping to solve this electrocatalytic problem LDH, rare-earth (RE) species have sprung up as emerging dopants owing their unique 4f valence-electronic configurations. Herein, Er is chosen a RE model improve OER activity LDH via constructing nickel foam supported Er-doped NiFe-LDH catalyst (Er-NiFe-LDH@NF). The optimal Er-NiFe-LDH@NF exhibits low overpotential (191 mV at 10 mA cm-2 ), high turnover frequency (0.588 s-1 and activation energy (36.03 kJ mol-1 which are superior Er-free sample. Electrochemical in situ Raman spectra reveal facilitated transition Ni-OH into Ni-OOH promoted kinetics through effect. Theoretical calculations demonstrate that introduction facilitates spin crossover valence electrons by optimizing d band center NiFe-LDH, leads GO -GHO closer kinetic volcano balancing bonding strength *O *OH. Moreover, presents practicability electrochemical water-splitting devices with driving potential well-extended period.

Язык: Английский

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Multicomponent transition metal oxides and (oxy)hydroxides for oxygen evolution

Nano Research, Год журнала: 2022, Номер 16(2), С. 1913 - 1966

Опубликована: Окт. 2, 2022

Язык: Английский

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Recent Advances on Transition‐Metal‐Based Layered Double Hydroxides Nanosheets for Electrocatalytic Energy Conversion

Advanced Science, Год журнала: 2023, Номер 10(13)

Опубликована: Март 3, 2023

Abstract Transition‐metal‐based layered double hydroxides (TM‐LDHs) nanosheets are promising electrocatalysts in the renewable electrochemical energy conversion system, which regarded as alternatives to noble metal‐based materials. In this review, recent advances on effective and facile strategies rationally design TM‐LDHs electrocatalysts, such increasing number of active sties, improving utilization sites (atomic‐scale catalysts), modulating electron configurations, controlling lattice facets, summarized compared. Then, these fabricated for oxygen evolution reaction, hydrogen urea oxidation nitrogen reduction small molecule oxidations, biomass derivatives upgrading is articulated through systematically discussing corresponding fundamental principles reaction mechanism. Finally, existing challenges density catalytically future prospects nanosheets‐based each application also commented.

Язык: Английский

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Pt single atom captured by oxygen vacancy-rich NiCo layered double hydroxides for coupling hydrogen evolution with selective oxidation of glycerol to formate

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 330, С. 122617 - 122617

Опубликована: Март 11, 2023

Язык: Английский

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Iron Oxyhydroxide: Structure and Applications in Electrocatalytic Oxygen Evolution Reaction

Advanced Functional Materials, Год журнала: 2023, Номер 33(25)

Опубликована: Март 10, 2023

Abstract Oxygen evolution reaction (OER) is the anodic half‐reaction for crucial energy devices, such as water electrolysis, metal–air battery, and electrochemical CO 2 reduction. Fe‐based materials are recognized one of most promising electrocatalysts OER because its extremely low price high activity. In particular, iron oxyhydroxide (FeOOH) not only highly active toward OER, but also widely accepted true species plenty converted into FeOOH during test. Herein, recent advances FeOOH‐based nano‐structure application in reviewed. The relationship between structure catalytic performance, followed by introduction current strategies enhancing activity (i.e., crystalline phase engineering, element doping, construction hybrid materials) mainly focused. Finally, a summary perspective about remaining challenges future opportunities this area further design provided.

Язык: Английский

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Self-supporting metal–organic framework-based hydrogen and oxygen electrocatalysts

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(25), С. 13089 - 13106

Опубликована: Янв. 1, 2023

This article reviews the recent development of self-supporting metal–organic framework-based hydrogen and oxygen electrocatalysts with a focus on synthesis strategy application, concluding some current challenges future perspectives.

Язык: Английский

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Surface sulfidation of NiCo-layered double-hydroxide nanosheets for flexible all-solid-state fiber-shaped asymmetric supercapacitors

Advanced Composites and Hybrid Materials, Год журнала: 2023, Номер 6(6)

Опубликована: Ноя. 24, 2023

Язык: Английский

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Interface engineering of three-phase nickel–cobalt sulfide/nickel phosphide/iron phosphide heterostructure for enhanced water splitting and urea electrolysis

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 665, С. 88 - 99

Опубликована: Март 19, 2024

Язык: Английский

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Advanced Catalyst Design Strategies and In-Situ Characterization Techniques for Enhancing Electrocatalytic Activity and Stability of Oxygen Evolution Reaction

Electrochemical Energy Reviews, Год журнала: 2024, Номер 7(1)

Опубликована: Июнь 5, 2024

Язык: Английский

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Regulating electronic structure by Mn doping for nickel cobalt hydroxide nanosheets/carbon nanotube to promote oxygen evolution reaction and oxidation of urea and hydrazine

Chemical Engineering Journal, Год журнала: 2022, Номер 452, С. 139527 - 139527

Опубликована: Окт. 1, 2022

Язык: Английский

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