MXene chemistry, electrochemistry and energy storage applications

Nature Reviews Chemistry, Год журнала: 2022, Номер 6(6), С. 389 - 404

Опубликована: Апрель 20, 2022

Язык: Английский

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Mechanochromic, Shape‐Programmable and Self‐Healable Cholesteric Liquid Crystal Elastomers Enabled by Dynamic Covalent Boronic Ester Bonds

Angewandte Chemie International Edition, Год журнала: 2021, Номер 61(9)

Опубликована: Дек. 28, 2021

Endowing a cholesteric liquid crystal elastomer (CLCE) exhibiting helicoidal nanostructure with dynamically tailorable functionalities is of paramount significance for its emerging applications in diverse fields such as adaptive optics and soft robotics. Here, mechanochromic, shape-programmable self-healable CLCE judiciously designed synthesized through integrating dynamic covalent boronic ester bonds into the main-chain polymer network. The circularly polarized reflection CLCEs can be reversibly tuned across entire visible spectrum by mechanical stretching. Thanks to introduction bonds, were found show robust reprogrammable self-healing capabilities. research disclosed herein provide new insights development 4D (color 3D shape) programmable photonic actuators towards bioinspired camouflage, optical systems, next-generation intelligent machines.

Язык: Английский

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Bioinspired Phototropic MXene‐Reinforced Soft Tubular Actuators for Omnidirectional Light‐Tracking and Adaptive Photovoltaics

Advanced Functional Materials, Год журнала: 2022, Номер 32(26)

Опубликована: Март 3, 2022

Abstract Endowing artificial advanced materials and systems with biomimetic self‐regulatory intelligence is of paramount significance for the development somatosensory soft robotics adaptive optoelectronics. Herein, a bioinspired phototropic MXene‐reinforced tubular actuator reported that exhibits omnidirectional self‐orienting ability capable quickly sensing, continuously tracking, adaptively interacting incident light in all zenithal azimuthal angles 3D space. The novelty lies three aspects: 1) new polymerizable MXene nanomonomer shows high compatibility liquid crystal elastomer (LCE) matrices can be situ photopolymerized into polymer networks, thus enhancing mechanical photoactuation properties; 2) distinct hollow radially symmetrical structure facilitates fast photoresponsiveness performance through retarding heat conduction along radial direction; 3) MXene‐LCE simultaneously integrates actuation, built‐in feedback loop, leading to light‐tracking accuracy phototropism like stem plants nature. As proof‐of‐concept demonstration, an photovoltaic system solar energy harvesting maximization illustrated. This work provide insights intelligent toward optoelectronics, robotics, beyond.

Язык: Английский

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Stimulus-driven liquid metal and liquid crystal network actuators for programmable soft robotics

Materials Horizons, Год журнала: 2021, Номер 8(9), С. 2475 - 2484

Опубликована: Янв. 1, 2021

Sophisticated soft matter engineering has been endorsed as an emerging paradigm for developing untethered robots with built-in electronic functions and biomimetic adaptation capacities. However, the integration of flexible components into robotic actuators is challenging due to strain mismatch material incompatibilities. Herein, we report a general strategy integrate electrically conductive liquid metals (LMs) shape-morphing crystal networks (LCNs) towards multifunctional programmable robotics. A unique colloidal LM ink superior adhesion photothermal conversion efficiency was judiciously designed fabricated by ultrasonicating LMs miniature carboxylated gold nanorods (MiniGNR-COOH) in aqueous suspension biological bacterial cellulose. The nanocellulose-based used shape-deformable LM-LCN that can be electro- photo-thermally actuated. As proof-of-concept demonstrations, present light-fueled oscillator, inchworm-inspired crawler Shadow Play exhibiting controllability. disclosed here could open up new technological arena advanced materials potential utility bioinspired machines, integrated electronics, human-computer interaction beyond.

Язык: Английский

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Nanocellulose‐Based Functional Materials: From Chiral Photonics to Soft Actuator and Energy Storage

Advanced Functional Materials, Год журнала: 2021, Номер 31(45)

Опубликована: Авг. 7, 2021

Abstract Nanocellulose is currently in the limelight of extensive research from fundamental science to technological applications owing its renewable and carbon‐neutral nature, superior biocompatibility, tailorable surface chemistry, unprecedented optical mechanical properties. Herein, an up‐to‐date account recent advancements nanocellulose‐derived functional materials their emerging areas chiral photonics, soft actuators, energy storage, biomedical provided. The design synthesis strategies for nanocellulose‐based are discussed. Their unique properties, underlying mechanisms, potential highlighted. Finally, this review provides a brief conclusion elucidates both challenges opportunities intriguing technologies rooted chemistry science. This expected provide new insights robotics, advanced energy, novel technologies, promote rapid development these highly interdisciplinary fields, including nanotechnology, nanoscience, biology, physics, synthetic science, device engineering.

Язык: Английский

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Bioinspired Synergistic Photochromic Luminescence and Programmable Liquid Crystal Actuators

Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(20), С. 11247 - 11251

Опубликована: Март 3, 2021

Abstract Bioinspired smart materials with synergistic allochroic luminescence and complex deformation are expected to play an important role in many areas of science technology. However, it is still challenging fabricate such soft actuators high programmability that can be manipulated situ spatial resolution. Herein, we have incorporated terminally functionalized aggregation‐induced emission active tetraphenylethene derivative photochromic spiropyran moieties into the networks liquid crystal elastomers through covalent bonding obtain programmable actuators. Bio‐mimic functions light‐induced auxetic metamaterial‐like devices were shown feasible based on combination assembly origami‐programming strategy. These bioinspired photodeformation abilities provide elegant strategy design multi‐functional

Язык: Английский

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Rapid Gelation of Tough and Anti‐Swelling Hydrogels under Mild Conditions for Underwater Communication

Advanced Functional Materials, Год журнала: 2022, Номер 33(1)

Опубликована: Ноя. 4, 2022

Abstract Swelling is ubiquitous for conventional hydrogels but not favorable many situations, especially underwater applications. In this study, an anti‐swelling and mechanically robust polyacrylic acid (PAAc)/gelatin composite hydrogel reported with a rapid gelation process (10 1 s) under mild conditions via the synergy of MXene‐activated initiation zirconium ion (Zr 4+ )‐induced cross‐linking, without requirement external energy input. The MXene found efficient to activate chain initiation, while Zr prone indispensable facilitating cross‐linking formed polymer chains. resulting exhibits integration exceptional properties high mechanical performance at room temperature, thanks dense hydrogen bonds between PAAc gelatin chains that enable upper critical solution temperature above temperature. Also, desirable electrical conductivity emerges in due simultaneous contribution , allowing stable signal output gel upon deformation underwater. As demonstration, communicator by harnessing as sensing module assembled, which capable wirelessly delivering messages decoder on ground Morse codes. This study provides exemplary way tough durable

Язык: Английский

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4D printing of MXene hydrogels for high-efficiency pseudocapacitive energy storage

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Ноя. 12, 2022

2D material hydrogels have recently sparked tremendous interest owing to their potential in diverse applications. However, research on the emerging MXene is still its infancy. Herein, we show a universal 4D printing technology for manufacturing with customizable geometries, which suits family of MXenes such as Nb2CTx, Ti3C2Tx, and Mo2Ti2C3Tx. The obtained offer 3D porous architectures, large specific surface areas, high electrical conductivities, satisfying mechanical properties. Consequently, ultrahigh capacitance (3.32 F cm-2 (10 mV s-1) 233 g-1 V s-1)) mass loading/thickness-independent rate capabilities are achieved. further 4D-printed Ti3C2Tx hydrogel micro-supercapacitors showcase great low-temperature tolerance (down -20 °C) deliver energy power densities up 93 μWh 7 mW cm-2, respectively, surpassing most state-of-the-art devices. This work brings new insights into expands range

Язык: Английский

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

Advanced Functional Materials, Год журнала: 2023, Номер 33(24)

Опубликована: Март 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.

Язык: Английский

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Bioinspired MXene-Based Soft Actuators Exhibiting Angle-Independent Structural Color

Nano-Micro Letters, Год журнала: 2022, Номер 15(1)

Опубликована: Ноя. 28, 2022

Abstract In nature, many living organisms exhibiting unique structural coloration and soft-bodied actuation have inspired scientists to develop advanced colored soft actuators toward biomimetic robots. However, it is challenging simultaneously biomimic the angle-independent color shape-morphing capabilities found in plum-throated cotinga flying bird. Herein, we report MXene-based with that are fabricated through controlled self-assembly of colloidal SiO 2 nanoparticles onto highly aligned MXene films followed by vacuum-assisted infiltration polyvinylidene fluoride into interstices. The resulting exhibit brilliant, color, as well ultrafast recovery speeds (a maximum curvature 0.52 mm −1 can be achieved within 1.16 s, a time ~ 0.24 s) response acetone vapor. As proof-of-concept illustrations, applied demonstrate blue gripper-like bird’s claw capture target, artificial green tendrils twine around tree branches, an multicolored butterfly flutter its wings upon cyclic exposure strategy expected offer new insights development multifunctional for somatosensory robotics next-generation intelligent machines.

Язык: Английский

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