Sustainable MXene Synthesis via Molten Salt Method and Nano-Silicon Coating for Enhanced Lithium-Ion Battery Performance

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 812 - 812

Published: Feb. 10, 2025

MXenes, a family of 2D transition metal carbides, nitrides, and carbonitrides, have attracted significant attention due to their exceptional physicochemical properties electrochemical performance, making them highly promising for diverse applications, particularly in energy storage. Despite notable advancements, MXene synthesis remains critical challenge, as conventional methods often rely on hazardous hydrofluoric acid-based processes, posing substantial environmental safety risks. In this study, we present an eco-friendly approach MXenes using molten salt which offer safer, sustainable alternative while enabling scalable production. Additionally, explore the development high-performance battery anodes by fabricating nanocomposites nano-silicon MXene, followed bio-inspired polydopamine coating carbonization process. This innovative strategy not only enhances structural stability performance but also aligns with environmentally conscious design principles. Our findings demonstrate potential nanocomposite materials advancing storage technologies.

Language: Английский

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A state-of-the-art review on MXene-based hybrid nanomaterial for energy storage applications

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 997, P. 174786 - 174786

Published: May 12, 2024

Language: Английский

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Atomic-scale investigations of Ti3C2T MXene surfaces

Matter, Journal Year: 2024, Volume and Issue: 7(7), P. 2609 - 2618

Published: July 1, 2024

Language: Английский

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Understanding the Chemical Degradation of Ti₃C₂T_x MXene Dispersions: A Chronological Analysis

Small Science, Journal Year: 2024, Volume and Issue: unknown

Published: June 25, 2024

Titanium carbide (Ti 3 C 2 T x ) MXene has attracted significant attention due to its exceptional properties and versatile solution processibility. However, dispersions are prone various degradation processes, leading the formation of byproducts that negatively affect morphological, electrical, mechanical properties. Through years, several methods have been developed mitigate degradation; however, divergent viewpoints on understanding mechanisms prevalent, hindering development strategies in producing environmentally stable dispersions. This review provides a chronological analysis research efforts aimed at unraveling underlying highlights for circumventing this process. discusses apparent inconsistencies experimental findings theoretical models. These discrepancies prompt further investigation clearer process MXene. narrative allows readers follow evolution dominant theories disputes ultimately stimulate investigation, aiming better It is anticipated identifying fundamental factors affecting oxidation will enable their full‐scale processing into higher‐order structures practical devices with greater longevity long‐term performance.

Language: Английский

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Recent insights on MXene-based architectures for monitoring and sensing of gaseous pollutants: A review

Talanta, Journal Year: 2024, Volume and Issue: 280, P. 126700 - 126700

Published: Aug. 24, 2024

Language: Английский

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Chalcogen and halogen surface termination coverage in MXenes—structure, stability, and properties

npj 2D Materials and Applications, Journal Year: 2024, Volume and Issue: 8(1)

Published: Oct. 2, 2024

Language: Английский

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In Situ X-ray Diffraction Study of MXene Synthesis by the Reaction of Ti₃AlC₂ with Molten Zinc and Tin Chlorides

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Using molten salts for etching aluminum (Al) away from the MAX phase MXene synthesis is an attractive alternative method that allows one to avoid use of toxic hydrofluoric acid (HF) solutions. However, mechanism reaction with remains date unclear due lack in situ data. Here, we present a detailed time-resolved synchrotron radiation X-ray diffraction study annealing ZnCl2 and SnCl2. The found occur two stages. initial period results delamination two-dimensional (2D) Ti3C2 layers, vigorous evolution AlCl3 bubbles, dissolution Zn melt. chlorine-terminated sheets formed delaminated state are restacked into relatively well-ordered structure (P63/mmc, = 3.071 Å c 18.577 Å) during prolonged salts. Surprisingly, data recorded directly at temperatures up 873 K demonstrate Ti3C2Clx shows no swelling both liquid studied be same as ex experiments performed after cooling water washing under ambient conditions. absence "pristine" melt-swollen indicates rather different formation compared HF-based solution methods. Formation by gradually removing Al starting edges flakes propagating deeper parts interlayers not possible, since salt capable penetrating between Cl-terminated layers.

Language: Английский

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Engineering the next generation of MXenes: challenges and strategies for scalable production and enhanced performance

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Optimization strategy of MXene scale preparation.

Language: Английский

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Record Efficiency of β‐Phase PVDF‐MXene Composites in Thin‐Film Dielectric Capacitors

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Polyvinylidene fluoride (PVDF) is a semicrystalline polymer used in thin-film dielectric capacitors because of its inherently high constant and low loss tangent. Its can be increased by the formation alignment β-phase crystalline structure, which facilitated 2D nanofillers. carbides nitrides, MXenes, are promising candidates due to their notable permittivity ability increase interfacial polarization. Still, mixing challenging weak interactions poor dispersibility MXenes PVDF. This work explores novel method for delaminating Ti3C2Tx MXene directly into organic solvents while maintaining flake size quality, as well use non-solvent-induced phase separation producing both dense porous PVDF-MXene composite films. A deeper understanding behavior these composites reached examining with mixed pure chlorine terminations PVDF matrices. Thin-film fabricated from display ultrahigh discharge energy density, exceeding 45 J cm-3 95% efficiency. The also processed using green sustainable solvent, propylene carbonate.

Language: Английский

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Principle and Structural Design of MXene‐Based Sensors Toward Smart Life

Interdisciplinary materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

ABSTRACT Two‐dimensional (2D) transition metal carbides, carbonitrides, and nitrides, known as MXenes, have been widely studied at the frontier of 2D materials. The excellent mechanical properties, electrical conductivity, photoelectrical performance, good thermal stability MXenes enable wide applications in many fields, including but not limited to energy storage, supercapacitors, EMI shielding, catalysis, optoelectronics, sensors. In particular, MXene‐based materials exhibit exceptional sensing performance due their unique tunable surface chemistry, architecture, exotic electrical/mechanical/electromechanical which are rarely found other This paper discusses MXene properties mechanisms different types sensors, piezoresistive flexible gas biosensors. roles these sensors toward future smart living also outlined. article may shed light on rational design provide valuable references for corresponding scenario applications.

Language: Английский

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