High-Yield Delamination of Hydrothermally-Etched V₂CT_x

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

The delamination of hydrothermally etched V2CTx has presented challenges, with limited reports an effective process. X-ray diffraction data indicate that excess lithium and salts in the reaction mixture interact multilayered MXene surfaces interlayer space, impeding intercalants would separate nanosheets. removal this salt a dilute acid solution is key step to enable synthesis delaminated markedly higher yield comparison traditional HF-etched (and delaminated) V2CTx. Because substantial, sample can be centrifuged produce 20 mL concentrated (25 mg mL-1) sample. Due water dissolved O2, shows improved stability toward oxidation withstand ambient conditions over course year.

Язык: Английский

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Review on MXenes-Based Electrocatalysts for High-Energy-Density Lithium–Sulfur Batteries

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

Опубликована: Апрель 10, 2025

Abstract Lithium–sulfur batteries (LSBs) hold significant promise as advanced energy storage systems due to their high density, low cost, and environmental advantages. However, despite recent advancements, practical density still falls short of the levels required for commercial viability. The is critically dependent on both sulfur loading amount electrolyte used. High-sulfur coupled with lean conditions presents several challenges, including insulating nature Li 2 S, insufficient absorption, degradation cathode structure, severe lithium polysulfide shuttling, slow redox reaction kinetics, instability metal anode. MXenes-based materials, metallic conductivity, large polar surfaces, abundant active sites, have been identified promising electrocatalysts improve reactions in LSBs. This review focuses significance challenges associated high-sulfur electrolytes LSBs, highlighting advancements aimed at optimizing cathodes anodes. It provides a comprehensive discussion MXenes materials substrates goal enhancing understanding regulatory mechanisms that govern conversion plating/stripping behavior. Finally, explores future opportunities electrocatalysts, paving way application

Язык: Английский

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Interlayer Manipulation for Accelerating Ion Diffusion Kinetics in Ti₃C₂T_X MXene Fiber toward Enhanced Supercapacitance with High Rate Capability

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Polymer incorporation has been proven effective to enhance the mechanical strength of MXene fibers via interfacial cross-linking, yet simultaneous improvement in electrochemical performance, particularly output capacitance and high rate capability, remains a challenge, major obstacle is identified as sluggish ion diffusion kinetics. Herein, interlayer manipulation Ti3C2TX fiber proposed, roles substitutional groups celluloses are examined. The addition cellulose can obviously improve spinnability dope effectively bridge adjacent nanosheets hydrogen bonds. Moreover, hydroxyethyl with suitable group size moderate adsorption ability preferred for diminishing steric effect facilitating rapid proton transport. Simultaneous improvements (1531 F cm-3 at 2 A cm-3) (∼76 MPa) achieved optimized M-HEC-1.0% together superior capability retaining 89.2% 15 cm-3.

Язык: Английский

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MXenes for Various Applications: Recent Trends and Future Aspects

SmartMat, Год журнала: 2025, Номер 6(2)

Опубликована: Апрель 1, 2025

ABSTRACT Two‐dimensional (2D) MXene structure, versatile surface reactivity, flexibility, wearability, and outstanding thermal attributes make them highly suitable for numerous applications. This comprehensive review based on MXenes delves into the potential uses of fewer assessed applications, such as materials, solar desalination, energy harvesting, electrochemical sensing, environmental remediation, removal heavy metal ions. Several industries associated with summarized applications include hybrid photovoltaic systems, storage, conversion, soft electronics, other industries. Further, underscores importance future guidance continued research in field to harness benefits not only but also diverse

Язык: Английский

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Emerging magnetic MXenes in water Treatment, Desalination, and resource Recovery: Advances, Challenges, and prospects

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 133426 - 133426

Опубликована: Май 1, 2025

Язык: Английский

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Advanced Multifunctional Electrocatalysts: Integrating DFT and Machine Learning for OER, HER, and ORR Reactions

Chemistry of Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

Язык: Английский

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Tailoring Etching Conditions to Unlock the Electrochemical Potential of 2D Ti3C2TX MXene

JOM, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

Язык: Английский

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Refractory Metal‐Based MXenes: Cutting‐Edge Preparation and Applications

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Abstract Refractory metal‐based MXenes refer to with M as a refractory metal. Due their high conductivity, large specific surface area, multiple active sites, photothermal conversion efficiency, adjustable groups, and controllable nanolayer spacing, they hold broad application prospects in various fields such photoelectrocatalysis, biomedicine, water treatment, electromagnetic shielding, sensors. The unique physical properties of are related electronic crystal structures. interstitial layer causes the carbides exhibit different behavior compared original At same time, preparation methods have great influence on interlayer spacing termination MXenes, thus affecting performance. This review systematically summarizes latest progress frontier applications offering new insights for further development. Additionally, characterization techniques first‐principles calculations summarized, which crucial optimizing catalysis, energy storage, In summary, current challenges future development Mxenes addressed, aiming provide indispensable information intelligent design 2D materials future.

Язык: Английский

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MXene-CNTs/Co dielectric-electromagnetic synergistic composites with multi-heterogeneous interfaces for microwave absorption

Carbon, Год журнала: 2024, Номер 232, С. 119825 - 119825

Опубликована: Ноя. 13, 2024

Язык: Английский

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