MXene based emerging materials for supercapacitor applications: Recent advances, challenges, and future perspectives

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 462, P. 214518 - 214518

Published: March 28, 2022

Language: Английский

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Highly Conductive MXene/PEDOT:PSS‐Integrated Poly(N‐Isopropylacrylamide) Hydrogels for Bioinspired Somatosensory Soft Actuators

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(24)

Published: March 10, 2023

Abstract Sophisticated sensing and actuation capabilities of many living organisms in nature have inspired scientists to develop biomimetic somatosensory soft robots. Herein, the design fabrication homogeneous highly conductive hydrogels for bioinspired actuators are reported. The synthesized by situ copolymerization surface‐functionalized MXene/Poly(3,4‐ethylenedioxythiophene)/poly(styrenesulfonate) ink with thermoresponsive poly( N ‐isopropylacrylamide) hydrogels. resulting found exhibit high conductivity (11.76 S m −1 ), strain sensitivity (GF 9.93), broad working range (≈560% strain), stability after over 300 loading–unloading cycles at 100% strain. Importantly, shape‐programmable hydrogel rapid response, light‐driven remote control, self‐sensing capability developed chemically integrating a structurally colored polymer. As proof‐of‐concept illustration, applied devising programmable shape‐morphing an artificial octopus, fish, gripper that can simultaneously monitor their own motions via real‐time resistance variation. This work is expected offer new insights into advanced materials capabilities, pave avenue development soft‐matter‐based self‐regulatory intelligence built‐in feedback control paramount significance intelligent robotics automated machines.

Language: Английский

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3D Macroporous Oxidation‐Resistant Ti₃C₂T_x MXene Hybrid Hydrogels for Enhanced Supercapacitive Performances with Ultralong Cycle Life

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(10)

Published: Nov. 23, 2021

Abstract As a recently emerging group of 2D materials, MXene has attracted extensive attention in the energy storage field recent years owing to their outstanding features. However, notorious issues inevitable oxidation stability and surface‐to‐surface self‐restacking for significantly prevent its further wide‐ranging application. Herein, 3D macroporous oxidation‐resistant Ti 3 C 2 T x MXene/graphene/carbon nanotube (MRC) hybrid hydrogels are prepared by simple gelation method assisted l ‐cysteine as crosslinker ‐ascorbic acid (VC) reductant. Benefitting from effectively alleviated restacking, excellent electrical conductivity, inter‐crosslinked architecture, supercapacitor electrode, obtained MRC aerogel exhibits superior specific capacitance 349 F g −1 , unparalleled rate capability (52.0% at 3000 mV s ) amazing cyclic (retention 97.1% after 100 000 cycles). Moreover, MRC‐30 an impressive performance with just 9.3% increase resistance storing ambient condition 60 days, alleviating problem MXene. This work demonstrates new construction hydrogel, shedding light on promising applications especially high humidity oxygen environment.

Language: Английский

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Electrically Conductive, Optically Responsive, and Highly Orientated Ti₃C₂T_x MXene Aerogel Fibers

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(4)

Published: Oct. 8, 2021

Abstract Aerogel fibers, which combine the lightweight and multimesoporous properties of aerogel with flexible slender characteristics fiber, have received growing attention in fields smart fabrics, electronic devices, transparency‐determined optics. Herein a pure Ti 3 C 2 T x MXene showing an intriguing oriented mesoporous structure, ultrahigh electrical conductivity, electrothermal/photothermal dual‐responsiveness, is fabricated via simple dynamic sol–gel spinning subsequent supercritical CO drying. fibers exhibit tunable porosity (96.5–99.3%), high specific surface area (up to 142 m g −1 ), low density (down 0.035 cm −3 ). Benefiting from metal‐like conductive nanosheets their orientation induced by wet spinning, resultant display conductivity up 10 4 S , far surpasses known materials (including monoliths, films) reported literature. In addition, also excellent dual‐responsiveness due remarkable light absorption ability. The combination these makes encouraging potential wearable portable equipment applications.

Language: Английский

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Metal Ion‐Induced Assembly of MXene Aerogels via Biomimetic Microtextures for Electromagnetic Interference Shielding, Capacitive Deionization, and Microsupercapacitors

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 11(35)

Published: July 16, 2021

Abstract Scaling the synergistic properties of MXene nanosheets to microporous aerogel architectures requires effective strategies overcome nanosheet restacking without compromising MXene's advantageous properties. Traditional assembly approaches 3D aerogels normally involve external binders/templates and/or additional functionalization, which sacrifice electrical conductivities and electrochemical activities aerogels. Herein, inspired by hierarchal scale textures Phrynosoma cornutum , a crumple‐textured Ti 3 C 2 T x platform is engineered facilitate Mg 2+ ‐induced assembly, enabling conformal formation large‐area ‐MXene polymeric binders. Through doctor blading technique freeze drying, are produced with customized shapes/dimensions, featuring high surface area (140.5 m g −1 ), superior conductivity (758.4 S robustness in water. The highly conductive show their versatile applications from macroscale technologies (e.g., electromagnetic interference shielding capacitive deionization (CDI)) on‐chip electronics quasi‐solid‐state microsupercapacitors (QMSCs)). As CDI electrodes, exhibit salt adsorption capacity (33.3 mg ) long‐term operation reliability (over 30 cycles), showing superb comparison literature. Also, QMSCs interdigitated electrodes demonstrate areal capacitances (409.3 mF cm −2 power density energy compared other state‐of‐art QMSCs.

Language: Английский

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Smart and flexible CNTs@MXene heterostructure-decorated cellulose films with excellent electrothermal/photothermal conversion and EMI shielding performances

Carbon, Journal Year: 2022, Volume and Issue: 200, P. 491 - 499

Published: Aug. 26, 2022

Language: Английский

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Wearable and high-performance piezoresistive sensor based on nanofiber/sodium alginate synergistically enhanced MXene composite aerogel

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138586 - 138586

Published: Aug. 10, 2022

Language: Английский

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Recent Advances in MXene‐Based Aerogels: Fabrication, Performance and Application

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(9)

Published: Dec. 26, 2022

Abstract As one of the “miracle materials” in 21st century, aerogels with ultra‐low weight and remarkable mechanical performance have emerged shown incredible immunity to harsh working environments, attracting substantial research interests across a wide range areas. Recently, exploitation MXene nanosheets into represents new focus field materials science, on account their unique structures outstanding properties. In this review, aim is provide timely insightful overview for recent advances fabrication, performance, application MXene‐based aerogels. The main strategies constructing aerogels, directly from MXene‐dispersion or presence other functional components, are summarized. Furthermore, desirable related applications areas including electromagnetic management, sensors, solar steam generators, energy storage highlighted. A thorough investigation comparison mechanical, electrical, sensing, properties performed understand structure‐property relationships. At last, study concluded summary outlook section future development as well challenges that remained, thus bringing opportunities material engineering

Language: Английский

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Nitrogen-doped Ti3C2Tx MXene prepared by thermal decomposition of ammonium salts and its application in flexible quasi-solid-state supercapacitor

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 458, P. 141338 - 141338

Published: Jan. 5, 2023

Language: Английский

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Flexible MXene‐Based Hydrogel Enables Wearable Human–Computer Interaction for Intelligent Underwater Communication and Sensing Rescue

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(49)

Published: Aug. 4, 2023

Abstract Conductive hydrogels have recently attracted extensive attention in the field of smart wearable electronics. Despite current versatility conductive hydrogels, balance between mechanical properties (tensile properties, strength, and toughness) electrical (electrical conductivity, sensitivity, stability) still faces great challenges. Herein, a simplified method for constructing hydrophobic association with excellent is proposed. The prepared exhibit high tensile (≈1224%), linearity whole‐strain–range ( R 2 = 0.999), wide strain sensing range (2700%). hydrogel can realize more than 1000 cycles under 500% strain. As an application demonstration, underwater communication device assembled combination polydimethylsiloxane/Triton X‐100 film coating, which successfully transmits signals provides warning potential hazards. This study new research developing equipment properties.

Language: Английский

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