A5102782956- MXene and MAX Phase Materials
- 2D Materials and Applications
- Aluminum Alloys Composites Properties
- Advanced ceramic materials synthesis
- Advanced Memory and Neural Computing
- Advanced materials and composites
- Advanced Photocatalysis Techniques
- Soil Carbon and Nitrogen Dynamics
- Advanced biosensing and bioanalysis techniques
- Electrocatalysts for Energy Conversion
- Ferroelectric and Negative Capacitance Devices
- X-ray Diffraction in Crystallography
- Advanced Antenna and Metasurface Technologies
- Boron and Carbon Nanomaterials Research
- Crystallization and Solubility Studies
- Graphene research and applications
- Electromagnetic wave absorption materials
- Advanced Nanomaterials in Catalysis
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Supercapacitor Materials and Fabrication
- Graphene and Nanomaterials Applications
- Metal and Thin Film Mechanics
- Inorganic Chemistry and Materials
- Polymer-Based Agricultural Enhancements
Chinese Academy of Sciences
2017-2024
Ningbo Institute of Industrial Technology
2017-2024
Soochow University
2024
University of Chinese Academy of Sciences
2018-2021
Linköping University
2021
Advanced Energy Materials (United States)
2021
Beijing University of Technology
2021
First Affiliated Hospital of Fujian Medical University
2018
Fujian Medical University
2018
University of Hong Kong
2018
Nanolaminated materials are important because of their exceptional properties and wide range applications. Here, we demonstrate a general approach to synthesize series Zn-based MAX phases Cl-terminated MXenes originating from the replacement reaction between phase late transition metal halides. The is top-down route that enables transitional element atom (Zn in present case) occupy A site pre-existing structure. Using this Zn molten ZnCl2 Al precursors (Ti3AlC2, Ti2AlC, Ti2AlN, V2AlC), novel...
The class of two-dimensional metal carbides and nitrides known as MXenes offer a distinct manner property tailoring for wide range applications. ability to tune the surface chemistry expanding space is thus an important topic, although experimental exploration terminals remains challenge. Here, we synthesized Ti3C2 MXene with unitary, binary, ternary halogen terminals, e.g., −Cl, −Br, −I, −BrI, −ClBrI, investigate effect on properties MXenes. electrochemical activity Br I elements results in...
Intercalated layered materials offer distinctive properties and serve as precursors for important two-dimensional (2D) materials. However, intercalation of non-van der Waals structures, which can expand the family 2D materials, is difficult. We report a structural editing protocol carbides (MAX phases) their derivatives (MXenes). Gap-opening species-intercalating stages were respectively mediated by chemical scissors intercalants, created large MAX phases with unconventional elements well...
Novel accordion structure Ti<sub>3</sub>C<sub>2</sub>–Ni<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub>composites with nice electromagnetic wave absorption properties.
Electromagnetic (EM) wave pollution is harmful to human health and environment, thus it absolutely important develop new electromagnetic absorbing materials. MAX phases have been attracted more attention as a potential candidate for materials due their high conductivity nanolaminated structure. Herein, two magnetic with multiprincipal elements ((Ti
MAX phases are highly promising materials for electromagnetic (EM) wave absorption because of their specific combination metal and ceramic properties, making them particularly suitable harsh environments. However, higher matching thickness impedance mismatching can limit ability to attenuate EM waves. To address this issue, researchers have focused on regulating the electronic structure through structural engineering. In study, we successfully synthesized a ternary phase known as Sc2GaC with...
MXenes are a rapidly growing family of 2D materials that exhibit highly versatile structure and composition, allowing for significant tuning the properties. These properties are, however, ultimately limited by surface terminations, which typically mixture species, including F O inherent to MXene processing. Other robust terminations lacking. Here, we apply high-resolution scanning transmission electron microscopy (STEM), corresponding image simulations first-principles calculations...
Tailoring of individual single-atom-thick layers in nanolaminated materials offers atomic-level control over material properties. Nonetheless, multielement alloying atomic nanolaminates is largely unexplored. Here, we report a series inherently V2(A'xSn1-x)C (A'=Fe, Co, Ni and Mn, combinations thereof, with x=1/3) synthesized by an alloy-guided reaction. The simultaneous occupancy the four magnetic elements Sn, A compound constitute high-entropy-alloy analogues, two-dimensional sense that...
A Ti3(AlxCu1-x)C2 phase with Cu atoms a degree of ordering in the plane is synthesized through site replacement reaction CuCl2 molten salt. The weakly bonded single-atom-thick layers MAX provide actives sites for catalysis chemistry. As-synthesized presents unusual peroxidase-like catalytic activity similar to that natural enzymes. fabricated Ti3(AlxCu1-x)C2/chitosan/glassy carbon electrode biosensor prototype also exhibits low detection limit electrochemical sensing H2O2. These results have...
MXenes are two‐dimensional transition metal carbides and/or nitrides with unique physiochemical properties and have attracted extensive interest in numerous fields. However, current MXene synthesis methods limited by hazardous conditions, high production costs, or difficulty large‐scale production. Therefore, a general, safe, cost‐effective, scalable method for is crucial. Here, we report the fast of open air using molten salt‐shielded (MS 3 ) method, which uses Lewis‐acid salts as etchants...
The development of abundant, cheap, and highly active catalysts for the hydrogen evolution reaction (HER) oxygen (OER) is important production. Nanolaminate ternary transition metal carbides (MAX phases) their derived two-dimensional (MXenes) have attracted considerable interest electrocatalyst applications. Herein, four new MAX@MXene core-shell structures (Ta2CoC@Ta2CTx, Ta2NiC@Ta2CTx, Nb2CoC@Nb2CTx, Nb2NiC@Nb2CTx), in which core region Co/Ni-MAX phases while edge MXenes, been prepared....
Two-dimensional (2D) transition metal carbides and/or nitrides, MXenes, are prepared by selective etching of the A-site atomically thin layers from their MAX phase precursors. High entropy most recent subfamily in infancy and have attracted great interest recently. They currently synthesized mainly through wet chemical Al-containing phases, while various phases with A-sites elements other than Al not been explored. It is important to embody non-Al as precursors for high MXenes synthesis...
Due to the promising application of sodium ion batteries (SIBs) in stationary energy storage, great effort has been devoted development anode materials, such as capacitance-type MXenes, battery-type metal sulfides/selenides and red phosphorus.
New MAX phases Ti2(AlxCu1−x)N and Nb2CuC were synthesized by A-site replacement reacting Ti2AlN Nb2AlC, respectively, with CuCl2 or CuI molten salt. X-ray diffraction, scanning electron microscopy, atomically resolved transmission microscopy showed complete in which lead to the formation of Nb2CuC. However, Al phase was only close at Ti2(Al0.1Cu0.9)N. Density-functional theory calculations corroborated structural stability Ti2CuN phases. Moreover, calculated cleavage energy these...
MAX phases are gaining attention as precursors of two-dimensional MXenes that intensively pursued in applications for electrochemical energy storage. Here, we report the preparation V2SnC phase by molten salt method. is investigated a lithium storage anode, showing high gravimetric capacity 490 mAh g-1 and volumetric 570 cm-3 well superior rate performance 95 (110 cm-3) at 50 C, surpassing ever-reported anodes. Supported operando X-ray diffraction density functional theory, charge mechanism...
Entropy stabilization is an effective method to design and explore MAX phases with outstanding properties via tuning constituent elements crystal structures, which have received considerable critical attention. Currently, some medium‐/high‐entropy (ME/HE) phases, whose A layers are composed of Al, S, magnetic elements, reported, while few discussions about ME/HE‐MAX other (e.g., Sn) conducted. Herein, fully dense phase bulks ((TiVNb) 2 SnC, (TiVNbZr) (TiVNbZrHf) SnC) designed synthesized...
MAX phases and its derived two-dimensional MXenes have attracted considerable interest because of their rich structural chemistry multifunctional applications. Lewis acid molten salt route provides an opportunity for structure design performance manipulation new MXenes, Although a series were successfully prepared via melt in recent years, few work is explored on nitride MXenes. Herein, copper-based 413-type Ti4CuN3 phase was synthesized through isomorphous replacement reaction using Ti4AlN3...