Ti₃C₂T_X MXene for Sensing Applications: Recent Progress, Design Principles, and Future Perspectives

ACS Nano, Journal Year: 2021, Volume and Issue: 15(3), P. 3996 - 4017

Published: March 11, 2021

Sensors are becoming increasingly significant in our daily life because of the rapid development electronic and information technologies, including Internet Things, wearable electronics, home automation, intelligent industry, etc. There is no doubt that their performances primarily determined by sensing materials. Among all potential candidates, layered nanomaterials with two-dimensional (2D) planar structure have numerous superior properties to bulk counterparts which suitable for building various high-performance sensors. As an emerging 2D material, MXenes possess several advantageous features adjustable surface properties, tunable bandgap, excellent mechanical strength, making them attractive applications. Herein, we particularly focus on recent research progress MXene-based sensors, discuss merits derivatives as materials collecting signals, try elucidate design principles working mechanisms corresponding strain/stress gas electrochemical optical humidity In end, analyze main challenges future outlook sensor

Language: Английский

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Janus (BNNS/ANF)-(AgNWs/ANF) thermal conductivity composite films with superior electromagnetic interference shielding and Joule heating performances

Nano Research, Journal Year: 2022, Volume and Issue: 15(5), P. 4747 - 4755

Published: Feb. 8, 2022

Language: Английский

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Multifunctional SiC@SiO2 Nanofiber Aerogel with Ultrabroadband Electromagnetic Wave Absorption

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: July 28, 2022

Traditional ceramic materials are generally brittle and not flexible with high production costs, which seriously hinders their practical applications. Multifunctional nanofiber aerogels highly desirable for applications in extreme environments, however, the integration of multiple functions preparation is extremely challenging. To tackle these challenges, we fabricated a multifunctional SiC@SiO2 aerogel (SiC@SiO2 NFA) three-dimensional (3D) porous cross-linked structure through simple chemical vapor deposition method subsequent heat-treatment process. The as-prepared NFA exhibits an ultralow density (~ 11 mg cm- 3), ultra-elastic, fatigue-resistant refractory performance, temperature thermal stability, insulation properties, significant strain-dependent piezoresistive sensing behavior. Furthermore, shows superior electromagnetic wave absorption performance minimum refection loss (RLmin) value - 50.36 dB maximum effective bandwidth (EABmax) 8.6 GHz. successful this material provides promising prospect design fabrication cutting-edge materials.

Language: Английский

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Breathable Ti₃C₂T_x MXene/Protein Nanocomposites for Ultrasensitive Medical Pressure Sensor with Degradability in Solvents

ACS Nano, Journal Year: 2021, Volume and Issue: 15(6), P. 9746 - 9758

Published: June 3, 2021

Flexible, breathable, and degradable pressure sensors with excellent sensing performance are drawing tremendous attention for various practical applications in wearable artificial skins, healthcare monitoring, intelligence due to their flexibility, breathability, lightweight, decreased electronic rubbish, environmentally friendly impact. However, traditional plastic or elastomer substrates impermeability, uncomfortableness, mechanical mismatches, nondegradability greatly restricted applications. Therefore, the fabrication of such high facile degradability, breathability is still a critical challenge highly desired. Herein, we present wearable, degradable, sensitive MXene/protein nanocomposites-based sensor. The fabricated MXene/protein-based sensor assembled from breathable conductive MXene coated silk fibroin nanofiber (MXene-SF) membrane patterned ink-printed (MXene ink-SF) interdigitated electrode, which can serve as layer electrode layer, respectively. exhibits wide range (up 39.3 kPa), sensitivity (298.4 kPa-1 1.4-15.7 kPa; 171.9 15.7-39.3 fast response/recovery time (7/16 ms), reliable cycling stability over 10 000 cycles, good biocompatibility, robust degradability. Furthermore, it shows great monitoring human psychological signals, acting an skin quantitative illustration distribution, wireless biomonitoring real time. Considering biodegradable features, may become promising find potential smart motion detection, disease diagnosis, human-machine interaction.

Language: Английский

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Nanocellulose-Assisted Construction of Multifunctional MXene-Based Aerogels with Engineering Biomimetic Texture for Pressure Sensor and Compressible Electrode

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

Published: April 10, 2023

Multifunctional architecture with intriguing structural design is highly desired for realizing the promising performances in wearable sensors and flexible energy storage devices. Cellulose nanofiber (CNF) employed assisting building conductive, hyperelastic, ultralight Ti3C2Tx MXene hybrid aerogels oriented tracheid-like texture. The biomimetic are constructed by a facile bidirectional freezing strategy CNF, carbon nanotube (CNT), based on synergistic electrostatic interaction hydrogen bonding. Entangled CNF CNT "mortars" bonded "bricks" of tracheid structure produce good interfacial binding, superior mechanical strength (up to 80% compressibility extraordinary fatigue resistance 1000 cycles at 50% strain). Benefiting from texture, CNF/CNT/MXene aerogel shows ultralow density 7.48 mg cm-3 excellent electrical conductivity (~ 2400 S m-1). Used as pressure sensors, such exhibit appealing sensitivity performance linear up 817.3 kPa-1, which affords their application monitoring body surface information detecting human motion. Furthermore, can also act electrode materials compressive solid-state supercapacitors that reveal satisfactory electrochemical (849.2 mF cm-2 0.8 mA cm-2) long cycle compression (88% after 10,000 strain 30%).

Language: Английский

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Ti₃C₂T_x MXene-Based Flexible Piezoresistive Physical Sensors

ACS Nano, Journal Year: 2022, Volume and Issue: 16(2), P. 1734 - 1758

Published: Feb. 11, 2022

MXenes have received increasing attention due to their two-dimensional layered structure, high conductivity, hydrophilicity, and large specific surface area. Because of these distinctive advantages, are considered as very competitive pressure-sensitive materials in applications flexible piezoresistive sensors. This work reviews the preparation methods, basic properties, assembly methods recent developments sensor applications. The MXene-based sensors can be categorized into one-dimensional fibrous, planar, three-dimensional according various structures. trends multifunctional integration pressure also summarized. Finally, we end this review by describing opportunities challenges for great prospects field

Language: Английский

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Multifunctional Superelastic Cellulose Nanofibrils Aerogel by Dual Ice‐Templating Assembly

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(46)

Published: Aug. 16, 2021

Abstract A superelastic aerogel with fast shape recovery performance from large compressive strain is highly desired for numerous applications such as thermal insulation in clothing, high‐sensitive sensors, and oil contaminant removal. Fabrication of cellulose nanofibrils (CNF) aerogels challenging the CNF can assemble into non‐elastic sheet‐like cell walls. Here, a dual ice‐templating assembly (DITA) strategy proposed that control sub‐micrometer fibers by extremely low temperature freezing (–196 °C), which further an elastic interconnected sub‐micron freezer (−20 °C) freeze drying. The DITA process demonstrates isotropic behavior recover over 80% along both longitudinal cross‐sectional directions, even cold liquid nitrogen environment. be easily modified chemical vapor deposition organosilane, demonstrating superhydrophobicity (164° water contact angle), high absorption (489 g −1 chloroform capacity), self‐cleaning, insulating (0.023 W (mK) ), infrared shielding properties. This new provides facile design bio‐based nanomaterials, derived multifunctional expected to useful wide‐range applications.

Language: Английский

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Flexible Self‐Powered Integrated Sensing System with 3D Periodic Ordered Black Phosphorus@MXene Thin‐Films

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(22)

Published: April 25, 2021

Abstract Accurate and continuous detection of physiological signals without the need for an external power supply is a key technology realizing wearable electronics as next‐generation biomedical devices. Herein, it shown that MXene/black phosphorus (BP)‐based self‐powered smart sensor system can be designed by integrating flexible pressure with direct‐laser‐writing micro‐supercapacitors solar cells. Using layer‐by‐layer (LbL) self‐assembly process to form periodic interleaving MXene/BP lamellar structure results in high energy‐storage capacity micro‐supercapacitor drive operation sensors compensate intermittency light illumination. Meanwhile, sensitive layer sensor, sensitivity device improved 77.61 kPa –1 at optimized elastic modulus 0.45 MPa. Furthermore, fast response time (10.9 ms) shows real‐time capability state human heart under conditions. It believed proposed study based on design integration MXene materials will provide general platform electronics.

Language: Английский

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Hydrogen-Bond-Triggered Hybrid Nanofibrous Membrane-Based Wearable Pressure Sensor with Ultrahigh Sensitivity over a Broad Pressure Range

ACS Nano, Journal Year: 2021, Volume and Issue: 15(3), P. 4380 - 4393

Published: Jan. 14, 2021

Recently, flexible capacitive pressure sensors have received significant attention in the field of wearable electronics. The high sensitivity over a wide linear range combined with long-term durability is critical requirement for fabrication reliable versatile applications. Herein, we propose special approach to enhance and linearity sensor by fabricating hybrid ionic nanofibrous membrane as sensing layer composed Ti3C2Tx MXene an salt lithium sulfonamides poly(vinyl alcohol) elastomer matrix. reversible ion pumping triggered hydrogen bond leads sensitivities 5.5 1.5 kPa-1 ranges 0-30 30-250 kPa, respectively, fast response time 70.4 ms. In addition, fabricated exhibits minimum detection limit 2 Pa 20 000 continuous cycles even under 45 kPa. These results indicate that proposed can be potentially used mobile medical monitoring devices next-generation artificial e-skin.

Language: Английский

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Superelastic Ti₃C₂T_x MXene-Based Hybrid Aerogels for Compression-Resilient Devices

ACS Nano, Journal Year: 2021, Volume and Issue: 15(3), P. 5000 - 5010

Published: Feb. 26, 2021

Superelastic aerogels with excellent electrical conductivity, reversible compressibility, and high durability hold great potential for varied emerging applications, ranging from wearable electronics to multifunctional scaffolds. In the present work, superelastic MXene/reduced graphene oxide (rGO) are fabricated by mixing MXene GO flakes, followed a multistep reduction of GO, freeze-casting, finally an annealing process. By optimizing both composition reducing conditions, resultant aerogel shows compressive strain 95%, surpassing all current reported values. The conducting MXene/rGO network provides fast electron transfer stable structural integrity under compression/release cycles. When assembled into compressible supercapacitors, 97.2% capacitance was retained after 1000 Moreover, conductivity porous structure also enabled fabrication piezoresistive sensor sensitivity (0.28 kPa–1), wide detection range (up 66.98 kPa), ultralow limit (∼60 Pa). It is envisaged that superelasticity offers versatile platform utilizing MXene-based materials in array applications including electronics, electromagnetic interference shielding, flexible energy storage devices.

Language: Английский

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