Ten Years of Progress in the Synthesis and Development of MXenes

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(39)

Published: Aug. 16, 2021

Abstract Since their discovery in 2011, the number of 2D transition metal carbides and nitrides (MXenes) has steadily increased. Currently more than 40 MXene compositions exist. The ultimate is far greater time they may develop into largest family materials known. MXenes’ unique properties, such as metal‐like electrical conductivity reaching ≈20 000 S cm −1 , render them quite useful a large applications, including energy storage, optoelectronic, biomedical, communications, environmental. papers patents published been growing quickly. first generation synthesized using selective etching layers from MAX phases, layered carbonitrides hydrofluoric acid. then, multiple synthesis approaches have developed, mixture fluoride salts various acids, non‐aqueous etchants, halogens, molten salts, allowing for new MXenes with better control over surface chemistries. Herein, brief historical overview 10 years research perspective on future development are provided. fact that production readily scalable aqueous environments, high yields bodes well commercialization.

Language: Английский

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MXene chemistry, electrochemistry and energy storage applications

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(6), P. 389 - 404

Published: April 20, 2022

Language: Английский

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Fundamentals of MXene synthesis

Nature Synthesis, Journal Year: 2022, Volume and Issue: 1(8), P. 601 - 614

Published: Aug. 1, 2022

Language: Английский

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High-entropy nanoparticles: Synthesis-structure-property relationships and data-driven discovery

Science, Journal Year: 2022, Volume and Issue: 376(6589)

Published: April 7, 2022

High-entropy nanoparticles have become a rapidly growing area of research in recent years. Because their multielemental compositions and unique high-entropy mixing states (i.e., solid-solution) that can lead to tunable activity enhanced stability, these received notable attention for catalyst design exploration. However, this strong potential is also accompanied by grand challenges originating from vast compositional space complex atomic structure, which hinder comprehensive exploration fundamental understanding. Through multidisciplinary view synthesis, characterization, catalytic applications, high-throughput screening, data-driven materials discovery, review dedicated discussing the important progress unveiling critical needs future development catalysis, energy, sustainability applications.

Language: Английский

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Recent Advances in Oxidation Stable Chemistry of 2D MXenes

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(13)

Published: Nov. 24, 2021

Abstract As an emerging star of 2D nanomaterials, transition metal carbides and nitrides, named MXenes, present a large potential in various research areas owing to their intrinsic multilayer structure intriguing physico‐chemical properties. However, the fabrication application functional MXene‐based devices still remain challenging as they are prone oxidative degradation under ambient environment. Within this review, preparation methods MXenes focusing on recent investigations thermal structure–stability relationships inert, oxidizing, aqueous environments systematically introduced. Moreover, key factors that affect oxidation such as, atmosphere, temperature, composition, microstructure, environment, reviewed. Based different scenarios, strategies for avoiding or delaying proposed encourage utilization complicated environments, especially at high temperature. Furthermore, chemistry MXene‐derived oxides is analyzed, which can offer perspectives further design novel composites with unique structures being preserved.

Language: Английский

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Recent advances of MXenes as electrocatalysts for hydrogen evolution reaction

npj 2D Materials and Applications, Journal Year: 2021, Volume and Issue: 5(1)

Published: Sept. 9, 2021

Abstract MXenes, an emerging two-dimensional (2D) transition metal carbides, nitrides and carbonitrides, have exhibited great potential as electrocatalysts for hydrogen evolution reaction (HER) due to the excellent characters, including structural chemical stability, superior electrical conductivity, large active surface area. In this comprehensive study, firstly, preparation advances of MXenes are systematically summarized. Then, representative applications MXenes-based HER introduced, from experimental theoretical aspects. Thirdly, strategies improving catalytic activity demonstrated, such optimizing sites by termination modification metal-atom doping, increasing fabricating various nanostructures. Finally, existing challenges new opportunities also elucidated. This paper provides reference future development efficient production through water-splitting technology.

Language: Английский

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Improving stability of MXenes

Nano Research, Journal Year: 2022, Volume and Issue: 15(7), P. 6551 - 6567

Published: May 19, 2022

Language: Английский

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2D MXenes and their heterostructures for HER, OER and overall water splitting: A review

International Journal of Hydrogen Energy, Journal Year: 2021, Volume and Issue: 47(5), P. 2794 - 2818

Published: Nov. 25, 2021

Language: Английский

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High-entropy materials for energy and electronic applications

Nature Reviews Materials, Journal Year: 2024, Volume and Issue: 9(4), P. 266 - 281

Published: March 6, 2024

Language: Английский

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High‐Entropy Carbonitride MAX Phases and Their Derivative MXenes

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 12(6)

Published: Dec. 29, 2021

Abstract Although high‐entropy layered transition metal carbonitride MAX phases and their derivative MXenes have been proposed to exhibit unique physicochemical features for widespread applications, it is still challenging synthesize them owing the easy formation of separated during traditional synthetic process. Here, a new phase (HE CN‐MAX, (Ti 1/3 V 1/6 Zr Nb Ta ) 2 AlC x N 1–x synthesized on basis metallurgically treating medium‐entropy (ME‐MAX) (Zr other 4 AlN 3 AlC). During metallurgical process, usage effectively solves separation issue low entropy difference. After selective extraction an A species, MXene CN‐MXene) with high mechanical strains five types metal‐nitrogen bonds achieved, which shows good adsorption catalytic activities lithium polysulfides. As result, lithium–sulfur battery HE CN‐MXene delivers high‐rate capability (702 mAh g −1 at C) cycling stability.

Language: Английский

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