Recent Advances in Flexible Pressure Sensors Based on MXene Materials

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: Feb. 21, 2024

In the past decade, with rapid development of wearable electronics, medical health monitoring, Internet Things, and flexible intelligent robots, pressure sensors have received unprecedented attention. As a very important kind electronic component for information transmission collection, gained wide application prospect in fields aerospace, biomedical skin, human-machine interface. recent years, MXene has attracted extensive attention because its unique 2D layered structure, high conductivity, rich surface terminal groups, hydrophilicity, which brought new breakthrough sensing. Thus, it become revolutionary pressure-sensitive material great potential. this work, advances MXene-based are reviewed from aspects sensing type, mechanism, selection, structural design, preparation strategy, application. The methods strategies to improve performance analyzed details. Finally, opportunities challenges faced by discussed. This review will bring research level, promoting wider exploitation practical materials sensors.

Language: Английский

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Ti₃C₂T_x MXene-Based Multifunctional Tactile Sensors for Precisely Detecting and Distinguishing Temperature and Pressure Stimuli

ACS Nano, Journal Year: 2023, Volume and Issue: 17(16), P. 16036 - 16047

Published: Aug. 14, 2023

Although skin-like sensors that can simultaneously detect various physical stimuli are of fair importance in cutting-edge human-machine interaction, robotic, and healthcare applications, they still face challenges facile, scalable, cost-effective production using conventional active materials. The emerging two-dimensional transition metal carbide, Ti3C2Tx MXene, integrated with favorable thermoelectric properties, metallic-like conductivity, a hydrophilic surface, is promising for solving these problems. Herein, multifunctional designed to precisely distinguish temperature pressure without cross-talk by decorating elastic porous substrates MXene sheets. Because the combination conductive thermally insulating, elastic, substrate integrates efficient Seebeck piezoresistive effects, resultant sensor exhibits not only an ultralow detection limit (0.05 K), high signal-to-noise ratio, excellent cycling stability but also sensitivity, fast response time, outstanding durability detection. Based on impressive dual-mode sensing properties independent detections, multimode input terminal electronic skin created, exhibiting great potential robotic interaction applications. This work provides scalable fabrication tactile detecting distinguishing stimuli.

Language: Английский

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PDMS Film-Based Flexible Pressure Sensor Array with Surface Protruding Structure for Human Motion Detection and Wrist Posture Recognition

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(2), P. 2554 - 2563

Published: Jan. 3, 2024

Flexible pressure sensors have been widely concerned because of their great application potential in the fields electronic skin, human–computer interaction, health detection, and so on. In this paper, a flexible sensor is designed, with polydimethylsiloxane (PDMS) films protruding structure as elastic substrate poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS)/cellulose nanocrystals (CNC) conductive-sensitive material. The has wide linear detection range (0–100 kPa), outstanding sensitivity (2.32 kPa–1), stability more than 2000 cycles. proven to be able detect human movements (finger bending, elbow etc.) small (breathing, pulse, etc.). addition, array can distribution judge shape object. A smart wristband equipped four designed. Among them, k-nearest neighbor (KNN) algorithm used classify data achieve high accuracy (99.52%) recognition seven kinds wrist posture. This work provides new opportunity fabricate simple, applications next-generation intelligent robotics.

Language: Английский

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NH3-Induced In Situ Etching Strategy Derived 3D-Interconnected Porous MXene/Carbon Dots Films for High Performance Flexible Supercapacitors

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

Published: Oct. 18, 2023

2D MXene (Ti3CNTx) has been considered as the most promising electrode material for flexible supercapacitors owing to its metallic conductivity, ultra-high capacitance, and excellent flexibility. However, it suffers from a severe restacking problem during fabrication process, limiting ion transport kinetics accessibility of ions in electrodes, especially direction normal surface. Herein, we report NH3-induced situ etching strategy fabricate 3D-interconnected porous MXene/carbon dots (p-MC) films high-performance supercapacitor. The pre-intercalated carbon (CDs) first prevent expose more inner electrochemical active sites. partially decomposed CDs generate NH3 nanosheets toward p-MC films. Benefiting structural merits ionic transmission channels, film electrodes achieve gravimetric capacitance (688.9 F g-1 at 2 A g-1) superior rate capability. Moreover, optimized is assembled into an asymmetric solid-state supercapacitor with high energy density cycling stability, demonstrating great promise practical applications.

Language: Английский

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Conductive hydrogels for bioenergy harvesting and self-powered application

Progress in Materials Science, Journal Year: 2023, Volume and Issue: 138, P. 101156 - 101156

Published: June 23, 2023

Language: Английский

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MXenes: Versatile 2D materials with tailored surface chemistry and diverse applications

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 90, P. 253 - 293

Published: Dec. 5, 2023

Language: Английский

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Microstructured Polyelectrolyte Elastomer‐Based Ionotronic Sensors with High Sensitivities and Excellent Stability for Artificial Skins

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(11)

Published: Dec. 14, 2023

High-performance flexible pressure sensors are highly demanded for artificial tactile sensing. Using ionic conductors as the dielectric layer has enabled ionotronic with high sensitivities owing to giant capacitance of electric double (EDL) formed at conductor/electronic conductor interface. However, conventional suffer from leakage, which greatly hinders long-term stability and practical applications. Herein, a leakage-free polyelectrolyte elastomer is synthesized. The mechanical electrical properties optimized, micropyramid array constructed, it used an sensor marked performances. obtained exhibits sensitivity 69.6 kPa

Language: Английский

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Multifunctional, superelastic, and environmentally stable sodium alginate/mxene/polydimethylsiloxane aerogels for piezoresistive sensor

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144551 - 144551

Published: July 1, 2023

Language: Английский

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Scope, evaluation and current perspectives of MXene synthesis strategies for state of the art applications

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(13), P. 7351 - 7395

Published: Jan. 1, 2024

This review provides insights into MXene synthesis methods, mechanisms, terminations, modifications strategies and important applications. Additionally, the advantages, drawbacks, suggestions, precautions have been discussed.

Language: Английский

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Ion gradient induced self-powered flexible strain sensor

Nano Energy, Journal Year: 2024, Volume and Issue: 126, P. 109689 - 109689

Published: April 30, 2024

Language: Английский

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