Pristine metal-organic frameworks for next-generation batteries

Coordination Chemistry Reviews, Год журнала: 2023, Номер 494, С. 215361 - 215361

Опубликована: Авг. 2, 2023

Язык: Английский

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Enhanced Active Sites and Stability in Nano‐MOFs for Electrochemical Energy Storage through Dual Regulation by Tannic Acid

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(41)

Опубликована: Авг. 21, 2023

The limited active sites and poor acid-alkaline solution stability of metal-organic frameworks (MOFs), significantly limit their wider application. In this study, the acid property tannic (TA) was used as an etchant to etch surface-active sites. Subsequently, further chelation protonated TA with exposed metal site can effectively protect ions. Meanwhile, provided a large amount phenolic hydroxyl groups, which greatly improve imidazolate-coordinated MOFs. electrochemical test results indicated that MOFs composite materials synthesized using scheme had high specific capacitance stability. And mechanism its reaction process explored through in situ X-ray diffraction (XRD) theoretical calculations. addition, same treatment carried out series carboxyl-coordinated MOFs, confirmed principle obtain higher This paper explains functionalization nano-MOFs by polyphenolic compounds, providing new ideas for research nano-MOFs.

Язык: Английский

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Recent Advancements in Electrochemical Sensors Based on MOFs and Their Derivatives

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 15, 2024

Metal-organic frameworks (MOFs) are composed of metal nodes and organic linkers that can self-assemble into an infinite network. The high porosity large surface area MOFs facilitate the effective enrichment mass transfer analytes, which enhance signal response improve sensitivity electrochemical sensors. Additionally, their derivatives possess properties unsaturated sites tunable structures, collectively demonstrating potential for sensing. This paper summarizes preparation methods, structural properties, applications in sensing, emphasizing sensors' selectivity from perspectives direct indirect detection. it also explores future directions prospects with aim overcoming current limitations through innovative approaches.

Язык: Английский

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Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(5), С. 1725 - 1755

Опубликована: Янв. 1, 2024

This article summarizes the regulation strategies of Fe-based MOFs-derived electrocatalysts for ZABs, and provides a prospect their future development.

Язык: Английский

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Metal–Organic Framework‐Based Materials for Advanced Sodium Storage: Development and Anticipation

Advanced Materials, Год журнала: 2024, Номер 36(16)

Опубликована: Янв. 9, 2024

As a pioneering battery technology, even though sodium-ion batteries (SIBs) are safe, non-flammable, and capable of exhibiting better temperature endurance performance than lithium-ion (LIBs), because lower energy density larger ionic size, they not amicable for large-scale applications. Generally, the electrochemical storage secondary can be improved by monitoring composition morphology electrode materials. Because more is intricacy nanostructured composite material, applications would expected. Despite conventional methods suitable practical production, synthesis metal-organic frameworks (MOFs) offer enormous opportunities next-generation delicately systematizing structure at molecular level to store sodium ions with sizes compared lithium ions. Here, review comprehensively discusses progress MOFs their derivatives applied as negative positive materials effective in SIBs. The commercialization goal has prompted development materials, before which mechanism MOF-based SIB electrodes systematically discussed. Finally, existing challenges, possible perspectives, future will anticipated.

Язык: Английский

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One‐Pot Etching Pyrolysis to Defect‐Rich Carbon Nanosheets to Construct Multiheteroatom‐Coordinated Iron Sites for Efficient Oxygen Reduction

Small, Год журнала: 2024, Номер 20(33)

Опубликована: Апрель 9, 2024

Constructing multiheteroatom coordination structure in carbonaceous substrates demonstrates an effective method to accelerate the oxygen reduction reaction (ORR) of supported single-atom catalyst. Herein, novel etching route assisted by potassium thiocyanate (KCNS) is developed convert metal-organic framework 2D defect-rich porous N,S-co-doped carbon nanosheets for anchoring atomically dispersed iron sites as high-performance ORR catalysts (Fe-SACs). The well-designed KCNS-assisted can generate spatial confinement template direct nanosheet formation, condition form structure, and additional sulfur atoms coordinate species. Spectral microscopy analysis reveals that element Fe-SACs highly isolated on anchored nitrogen unsymmetrical Fe-S

Язык: Английский

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Stabilizing Ni²⁺ in Hollow Nano MOF/Polymetallic Phosphides Composites for Enhanced Electrochemical Performance in 3D‐Printed Micro‐Supercapacitors

Advanced Materials, Год журнала: 2024, Номер 36(29)

Опубликована: Март 26, 2024

Polymetallic phosphides exhibit favorable conductivities. A reasonable design of nano-metal-organic frame (MOF) composite morphologies and in situ introduction polymetallic into the framework can effectively improve electrolyte penetration rapid electron transfer. To address existing challenges, Ni, with a strong coordination ability N, is introduced to partially replace Co nano-Co-MOF composite. The hollow nanostructure stabilized through CoNi bimetallic low-temperature controllable phosphide generation rate. Co, P atoms, generated during reduction, enhance transfer rate within framework. X-ray absorption fine structure (XAFS) characterization results further confirm existence Ni-N, Ni-Ni, Co-Co structures nanocomposite. changes each component charge-discharge process electrochemical reactions are investigated using diffraction (XRD). Theoretical calculations that conductivity. VZNPGC//MXene MSCs, constructed active materials derived from nano MOF composites synthesized Ni

Язык: Английский

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Hierarchically Ordered Pore Engineering of Metal–Organic Framework‐Based Materials for Electrocatalysis

Advanced Materials, Год журнала: 2024, Номер 36(27)

Опубликована: Апрель 17, 2024

Abstract Ordered pore engineering that embeds uniform pores with periodic alignment in electrocatalysts opens up a new avenue for achieving further performance promotion. Hierarchically ordered porous metal–organic frameworks (HOP‐MOFs) possessing multilevel distribution are the promising precursors exploration of electrocatalysts, while scalable acquisition HOP‐MOFs editable components and adjustable size regimes is critical. This review presents recent progress on hierarchically MOF‐based materials enhanced electrocatalysis. The synthetic strategies different regimes, including self‐assembly guided by reticular chemistry, surfactant, nanoemulsion, nanocasting, first introduced. Then applications as exploring summarized, selecting representatives to highlight boosted performance. Especially, intensification molecule ion transport integrated optimized electron transfer site exposure over derivatives emphasized clarify directional integration effect endowed engineering. Finally, remaining scientific challenges an outlook this field proposed. It hoped will guide nanocatalysts boosting catalytic promoting practical applications.

Язык: Английский

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Biomass-MOF composites in wastewater treatment, air purification, and electromagnetic radiation adsorption – A review

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 152932 - 152932

Опубликована: Июнь 7, 2024

Язык: Английский

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Yolk–Shell CoNi@N-Doped Carbon-CoNi@CNTs for Enhanced Microwave Absorption, Photothermal, Anti-Corrosion, and Antimicrobial Properties

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Фев. 26, 2025

Abstract The previous studies mainly focused on improving microwave absorbing (MA) performances of MA materials. Even so, these designed materials were very difficult to be employed in complex and changing environments owing their single-functionalities. Herein, a combined Prussian blue analogues derived catalytical chemical vapor deposition strategy was proposed produce hierarchical cubic sea urchin-like yolk–shell CoNi@N-doped carbon (NC)-CoNi@carbon nanotubes (CNTs) mixed-dimensional multicomponent nanocomposites (MCNCs), which composed zero-dimensional CoNi nanoparticles, three-dimensional NC nanocubes one-dimensional CNTs. Because good impedance matching attenuation characteristics, the CoNi@NC-CoNi@CNTs MCNCs exhibited excellent performances, achieved minimum reflection loss ( RL min ) −71.70 dB at 2.78 mm Radar Cross section value −53.23 m 2 . More importantly, acquired results demonstrated that presented photothermal, antimicrobial anti-corrosion properties structure, highlighting potential multifunctional applications. It could seen this finding not only generalizable route magnetic NC-CNTs-based MCNCs, but also provided an effective develop improve environmental adaptabilities.

Язык: Английский

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