MXenes as Emerging Materials: Synthesis, Properties, and Applications

Molecules, Journal Year: 2022, Volume and Issue: 27(15), P. 4909 - 4909

Published: Aug. 1, 2022

Due to their unique layered microstructure, the presence of various functional groups at surface, earth abundance, and attractive electrical, optical, thermal properties, MXenes are considered promising candidates for solution energy- environmental-related problems. It is seen that energy conversion storage capacity can be enhanced by changing material dimensions, chemical composition, structure, surface chemistry. Hence, it also essential understand how one easily improve structure–property relationship from an applied point view. In current review, we reviewed fabrication, potential applications MXenes. addition, properties such as structural, thermal, chemical, mechanical have been discussed. Furthermore, in areas photocatalysis, electrocatalysis, nitrogen fixation, gas sensing, cancer therapy, supercapacitors outlooked. Based on reported works, could observed further applying modification functionalization approaches. This review emphasizes recent developments future perspectives MXenes-based composite materials, which will greatly help scientists working fields academia science.

Language: Английский

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Roles of MXenes in biomedical applications: recent developments and prospects

Journal of Nanobiotechnology, Journal Year: 2023, Volume and Issue: 21(1)

Published: March 2, 2023

Abstract ....With the development of nanomedical technology, application various novel nanomaterials in biomedical field has been greatly developed recent years. MXenes, which are new inorganic with ultrathin atomic thickness, consist layered transition metal carbides and nitrides or carbonitrides have general structural formula M n+1 X n T x (n = 1–3). Based on unique features such as thickness high specific surface area, their excellent physicochemical properties, photothermal conversion efficiency antibacterial MXenes widely applied field. This review systematically summarizes MXene-based materials biomedicine. The first section is a brief summary synthesis methods modification strategies, followed by focused overview analysis applications biosensors, diagnosis, therapy, agents, implants, among other areas. We also two popular research areas: wearable devices immunotherapy. Finally, difficulties progress clinical translation briefly discussed. Graphical

Language: Английский

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Emerging MXene/cellulose composites: Design strategies and diverse applications

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 458, P. 141402 - 141402

Published: Jan. 10, 2023

Language: Английский

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Ammonium Ion Batteries: Material, Electrochemistry and Strategy

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(23)

Published: March 8, 2023

Abstract Ammonium‐ion batteries (AIBs) have recently attracted increasing attention in the field of aqueous owing to their high safety and fast diffusion kinetics. The NH 4 + storage mechanism is quite different from that spherical metal ions (e.g. Li , Na K Mg 2+ Zn ) because formation hydrogen bonds between host materials. Although many materials been proposed as electrode for AIBs, performances hardly meet requirement future electrochemical energy devices. It thus urgent design exploit advanced AIBs. This review highlights state‐of‐the‐art research on insights into basic configuration, operating recent progress corresponding electrolytes AIBs comprehensively outlined. are classified compared according behaviour structure. challenges, strategies perspectives also discussed development

Language: Английский

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Toward Smart Sensing by MXene

Small, Journal Year: 2022, Volume and Issue: 19(14)

Published: Dec. 14, 2022

Abstract The Internet of Things era has promoted enormous research on sensors, communications, data fusion, and actuators. Among them, sensors are a prerequisite for acquiring the environmental information delivering to an artificial center make decisions. MXene‐based have aroused tremendous interest because their extraordinary performances. In this review, electrical, electronic, optical properties MXenes first introduced. Next, discussed according sensing mechanisms such as electrochemical, methods. Initially, biosensors introduced based chemiresistors field‐effect transistors. Besides, wearable pressure sensor is demonstrated with piezoresistive devices. Third, electrochemical methods include amperometry electrochemiluminescence examples. addition, approaches refer surface plasmonic resonance fluorescence energy transfer. Moreover, prospects delivered multimodal fusion toward complicated human‐like senses. Eventually, future opportunities MXene conveyed in new material discovery, structure design, proof‐of‐concept

Language: Английский

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Two-dimensional MXene with multidimensional carbonaceous matrix: A platform for general-purpose functional materials

Progress in Materials Science, Journal Year: 2023, Volume and Issue: 135, P. 101105 - 101105

Published: March 2, 2023

Language: Английский

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All-MXenes zinc ion hybrid micro-supercapacitor with wide voltage window based on V2CTx cathode and Ti3C2Tx anode

Nano Energy, Journal Year: 2023, Volume and Issue: 111, P. 108383 - 108383

Published: March 25, 2023

Language: Английский

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Reviving Zn⁰ Dendrites to Electroactive Zn²⁺ by Mesoporous MXene with Active Edge Sites

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(44), P. 24284 - 24293

Published: Oct. 27, 2023

Zinc metal-based aqueous batteries (ZABs) offer a sustainable, affordable, and safe energy storage alternative to lithium, yet inevitable dendrite formation impedes their wide use, especially under long-term high-rate cycles. How the battery can survive after remains an open question. Here, we pivot from conventional Zn growth suppression strategies, introducing proactive dendrite-digesting chemistry via mesoporous Ti3C2 MXene (MesoTi3C2)-wrapped polypropylene separator. Spectroscopic characterizations electrochemical evaluation demonstrate that MesoTi3C2, acting as oxidant, revive formed dead Zn0 dendrites into electroactive Zn2+ ions through spontaneous redox process. Density functional theory reveals abundant edge-Ti-O sites in our MesoTi3C2 facilitate high oxidizability electron transfer compared in-plane counterparts. The resultant asymmetrical cell demonstrates remarkable ultralong cycle life of 2200 h at practical current 5 mA cm-2 with low overpotential (<50 mV). study unexpected edge effect MXenes uncovers new ZABs, albeit formation.

Language: Английский

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Recent Advances and Perspectives of Lewis Acidic Etching Route: An Emerging Preparation Strategy for MXenes

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 15, 2023

Abstract Since the discovery in 2011, MXenes have become rising star field of two-dimensional materials. Benefiting from metallic-level conductivity, large and adjustable gallery spacing, low ion diffusion barrier, rich surface chemistry, superior mechanical strength, exhibit great application prospects energy storage conversion, sensors, optoelectronics, electromagnetic interference shielding biomedicine. Nevertheless, two issues seriously deteriorate further development MXenes. One is high experimental risk common preparation methods such as HF etching, other difficulty obtaining with controllable groups. Recently, Lewis acidic a brand-new strategy for MXenes, has attracted intensive attention due to its safety ability endow uniform terminations. However, comprehensive review etching method not been reported yet. Herein, we first introduce following four aspects: mechanism, terminations regulation, in-situ formed metals delamination multi-layered Further, applications MXene-based hybrids obtained by route sensors microwave absorption are carefully summarized. Finally, some challenges opportunities also presented.

Language: Английский

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Electrostatic Interfacial Cross-Linking and Structurally Oriented Fiber Constructed by Surface-Modified 2D MXene for High-Performance Flexible Pseudocapacitive Storage

ACS Nano, Journal Year: 2023, Volume and Issue: 17(3), P. 2487 - 2496

Published: Feb. 1, 2023

Fiber supercapacitors are promising power supplies suitable for wearable electronics, but the internally insufficient cross-linking and random structure of fiber electrodes restrict their performance. This study describes how interfacial oriented can fabricate an MXene with high flexibility electrochemical The continuous highly macroscopic fibers were constructed by 2D sheets via a liquid-crystalline wet-spinning assembly. oxyanion-enriched terminations surface-modified in situ could reinforce electrostatic interactions while mediating sheet-to-sheet lamellar within fiber. resultant exhibits electrical conductivity (3545 S cm-1) mechanical strength (205.5 MPa) pseudocapacitance charge storage capability up to 1570.5 F cm-3. Notably, assembled supercapacitor delivers energy density 77.6 mWh cm-3 at 401.9 mW cm-3, exceptional stability exhibiting ∼99.5% capacitance retention under deformation, be integrated into commercial textiles microelectronic devices. work provides insight fabrication advanced development high-performance flexible supercapacitors.

Language: Английский

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