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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Transition Metal‐Based Catalysts for Urea Oxidation Reaction (UOR): Catalyst Design Strategies, Applications, and Future Perspectives

Advanced Functional Materials, Год журнала: 2024, Номер 34(18)

Опубликована: Янв. 21, 2024

Abstract Urea oxidation reaction (UOR) has garnered significant attention in recent years as a promising and sustainable clean‐energy technology. Urea‐containing wastewater poses severe threats to the environment human health. Numerous studies hence focus on developing UOR viable process for simultaneously remediating converting it into energy. Moreover, UOR, which thermodynamic potential of 0.37 V (vs reversible hydrogen electrode, RHE), shows great promise replacing energy‐intensive oxygen evolution (OER; 1.23 vs RHE). The versatility stability urea, particularly at ambient temperatures, make an attractive alternative fuel cells. Since entails complex intermediate adsorption/desorption process, many are devoted designing cost‐effective efficient catalysts. Notably, transition metal‐based materials with regulated d orbitals have demonstrated process. However, comprehensive reviews focusing catalysts remain scarce. In light this, review aims bridge gap by offering in‐depth systematic overview cutting‐edge design strategies their diverse applications UOR. Additionally, delves status quo future directions, charting course further advancements this exciting field.

Язык: Английский

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Understanding the bifunctional catalytic ability of electrocatalysts for oxygen evolution reaction and urea oxidation Reaction: Recent advances and perspectives

Chemical Engineering Journal, Год журнала: 2023, Номер 471, С. 144660 - 144660

Опубликована: Июль 11, 2023

Язык: Английский

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Compositional engineering of HKUST‐1/sulfidized NiMn‐LDH on functionalized MWCNTs as remarkable bifunctional electrocatalysts for water splitting

Carbon Energy, Год журнала: 2023, Номер 5(12)

Опубликована: Дек. 1, 2023

Abstract Water‐splitting reactions such as the hydrogen evolution reaction (HER) and oxygen (OER) typically require expensive noble metal‐based electrocatalysts. This has motivated researchers to develop novel, cost‐effective electrocatalytic systems. In this study, a new multicomponent nanocomposite was assembled by combining functionalized multiwalled carbon nanotubes, Cu‐based metal–organic framework (MOF) (HKUST‐1 or HK), sulfidized NiMn‐layered double hydroxide (NiMn‐S). The resulting nanocomposite, abbreviated MW/HK/NiMn‐S, features unique architecture, high porosity, numerous electroactive Cu/Ni/Mn sites, fast charge transfer, excellent structural stability, conductivity. At current density of 10 mA cm −2 , dual‐function electrocatalyst shows remarkable performance, with ultralow overpotential values 163 mV 73 (HER), well low Tafel slopes (57 75 dec −1 respectively). Additionally, its turnover frequency (4.43 s for OER; 3.96 HER) are significantly superior those standard Pt/C IrO 2 synergistic effect nanocomposite's different components is responsible enhanced performance. A functional theory study revealed that multi‐interface heterostructure contribute increased electrical conductivity decreased energy barrier, in HER/OER activity. presents novel vision designing advanced electrocatalysts performance water splitting. Various composites have been utilized water‐splitting applications. investigates use MW/HK/NiMn‐S splitting first time indicate between carbon‐based materials along layered compounds porous MOF. each component composite can be an interesting topic field

Язык: Английский

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Enlarging the Ni–O Bond Polarizability in a Phosphorene-Hosted Metal–Organic Framework for Boosted Water Oxidation Electrocatalysis

ACS Nano, Год журнала: 2023, Номер 17(17), С. 17254 - 17264

Опубликована: Авг. 31, 2023

The emerging lattice-oxygen oxidation mechanism (LOM) presents attractive opportunities for breaking the scaling relationship to boost oxygen evolution reaction (OER) with direct OLattice-*O interaction. However, currently LOM-triggering rationales are still debated, and a streamlined physicochemical paradigm is extremely desirable design of LOM-defined OER catalysts. Herein, Ni metal-organic framework/black phosphorene (NiMOF/BP) heterostructure theoretically profiled constructed as catalytic platform LOM-derived studies. It found that p-type BP host can enlarge Ni-O bond polarizability NiMOF through stretching valence declining synergically. Such an enlarged will in principle alleviate lattice confinement benefit LOM pathway performance. As result, optimized NiMOF/BP catalyst exhibits promising performance low overpotential 260 mV at 10 mA cm-2 long-term stability 1 M KOH electrolyte. Both experiment calculation results suggest activated more balanced step barrier catalyst. This research puts forward criterion LOM-scaled electrocatalysts water oxidation.

Язык: Английский

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Advances of layered double hydroxide electrocatalysts for high-current-density alkaline water/seawater splitting

Coordination Chemistry Reviews, Год журнала: 2024, Номер 510, С. 215832 - 215832

Опубликована: Март 28, 2024

Язык: Английский

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Salt Effect Engineering Single Fe‐N₂P₂‐Cl Sites on Interlinked Porous Carbon Nanosheets for Superior Oxygen Reduction Reaction and Zn‐Air Batteries

Advanced Science, Год журнала: 2024, Номер 11(12)

Опубликована: Янв. 15, 2024

Abstract Developing efficient metal‐nitrogen‐carbon (M‐N‐C) single‐atom catalysts for oxygen reduction reaction (ORR) is significant the widespread implementation of Zn‐air batteries, while synergic design matrix microstructure and coordination environment metal centers remains challenges. Herein, a novel salt effect‐induced strategy proposed to engineer N P coordinated atomically dispersed Fe atoms with extra‐axial Cl on interlinked porous carbon nanosheets, achieving superior catalyst (denoted as Fe‐NP‐Cl‐C) ORR batteries. The hierarchical nanosheet architecture can provide rapid mass/electron transfer channels facilitate exposure active sites. Experiments density functional theory (DFT) calculations reveal distinctive Fe‐N 2 ‐Cl sites afford significantly reduced energy barriers promoted kinetics ORR. Consequently, Fe‐NP‐Cl‐C exhibits distinguished performance half‐wave potential (E 1/2 ) 0.92 V excellent stability. Remarkably, assembled battery based delivers an extremely high peak power 260 mW cm −2 large specific capacity 812 mA h g −1 , outperforming commercial Pt/C most reported congeneric catalysts. This study offers new perspective structural optimization engineering electrocatalysis conversion devices.

Язык: Английский

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Recent Developments in Nickel-Based Layered Double Hydroxides for Photo(-/)electrocatalytic Water Oxidation

ACS Nano, Год журнала: 2024, Номер 18(26), С. 16413 - 16449

Опубликована: Июнь 21, 2024

Layered double hydroxides (LDHs), especially those containing nickel (Ni), are increasingly recognized for their potential in photo(-/)electrocatalytic water oxidation due to the abundant availability of Ni, corrosion resistance, and minimal toxicity. This review provides a comprehensive examination Ni-based LDHs electrocatalytic (EC), photocatalytic (PC), photoelectrocatalytic (PEC) processes. The delves into operational principles, highlighting similarities distinctions as well benefits limitations associated with each method oxidation. It includes detailed discussion on synthesis monolayer, ultrathin, bulk LDHs, focusing merits drawbacks inherent approach. Regarding EC oxygen evolution reaction (OER), strategies improve catalytic performance insights structural during process summarized. Furthermore, extensively covers advancements PEC OER, including an analysis semiconductors paired form photoanodes, focus enhanced activity, stability, underlying mechanisms facilitated by LDHs. concludes addressing challenges prospects development innovative LDH catalysts practical applications. provided this paper will not only stimulate further research but also engage scientific community, thus driving field forward.

Язык: Английский

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Synthesis of benzothiazoles using an iron-anchored polysulfonamide modified layered double oxide/sodium alginate nanocomposite

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(9), С. 5474 - 5492

Опубликована: Янв. 1, 2024

The central aim of this investigation was to innovate a novel nanocatalyst for the eco-friendly synthesis benzothiazoles through an acceptorless dehydrogenative coupling 2-aminothiophenol and benzyl alcohol, mitigating environmental impact.

Язык: Английский

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Layered double hydroxides for air pollution control: Applications, mechanisms and trends

Journal of Cleaner Production, Год журнала: 2024, Номер 436, С. 140635 - 140635

Опубликована: Янв. 1, 2024

Язык: Английский

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