Multiscale Structural Nanocellulosic Triboelectric Aerogels Induced by Hofmeister Effect

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(42)

Published: Aug. 28, 2023

Abstract The advent of self‐powered wearable electronics will revolutionize the fields smart healthcare and sports monitoring. This technological advancement necessitates more stringent design requirements for triboelectric materials. aerogels must enhance their mechanical properties to address issue structural collapse in real‐world applications. study fabricates stiff nanocellulosic with multiscale structures induced by Hofmeister effect. aggregation crystallization polymer molecular chains are enhanced effect, while ice crystal growth imparts a porous structure aerogel at micron scale. Therefore, exhibits exceptional stiffness, boasting Young's modulus up 142.9 MPa specific 340.6 kN m kg –1 , remaining undeformed even after supporting 6600 times its weight. Even withstanding an impact 343 kPa, highly robust sensors fabricated remain operational. Additionally, sensor is capable accurately detecting human movements, particularly abnormal fall postures detection. provides considerable research practical value promoting material broadening application scenarios electronics.

Language: Английский

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Multiscale Structural Triboelectric Aerogels Enabled by Self‐Assembly Driven Supramolecular Winding

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: Feb. 20, 2024

Abstract The rapid development of wearable electronics has placed higher demands on the design strategies triboelectric materials. Aerogels have potential to become advanced materials, however, traditional often require complex processes and additional chemical cross‐linking agents improve stability gel structure, which limits its practical application. In this work, a scalable sustainable self‐assembly drive strategy is proposed for bio‐based aerogels with multi‐scale winding structures. Interestingly, autoacceleration effect, regarded as “unfavorable” during autocatalytic polymerization supramolecules, rationally exploited provide supramolecules within matrix an abundance multiple hydrogen bonds at same time their gelation occurs. Thanks this, aerogel film exhibits ultra‐high tensile strength (104 MPa) remains undeformed after resisting impact 8000 times own weight. Highly robust films are used build self‐powered sensors ultra‐fast response in environments (48 ms), while enabling real‐time interaction between wearer information network. idea “ turning detriment into asset ” work provides new material construction highly sensors.

Language: Английский

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Liquid–Solid Triboelectric Probes for Real‐Time Monitoring of Sucrose Fluid Status

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(45)

Published: July 4, 2023

Abstract Triboelectric probes have rapidly developed as an efficient tool for understanding contact electrification at liquid–solid interfaces. However, the process is susceptible to interference from chemical components in mixed solutions, severely limiting potential applications of triboelectric various liquid environments. This study first time reports a probe capable sucrose solution concentration sensing, finding that dissolution destroys hydrogen bond network between water molecules and forms sucrose–water bonds, which alters fluid mechanics characteristics enhances its conductivity, thereby reducing droplet size causing ion charge shielding effect significantly affects electron transfer electrification. Owing feedback on gradient‐type sensing electrical signals, was achieved (sensitivity −0.0038% −1 , response 90 ms). The also used wireless smart terminal enable real‐time detection solution. work contributes structure–function relationship micro bonding macro performance, provides promising building sustainable intelligent sensors.

Language: Английский

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Advances in liquid-solid triboelectric nanogenerators and its applications

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 214, P. 153 - 169

Published: July 17, 2024

Language: Английский

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A class of promising fuel cell performance: International status on the application of nanofluids for thermal management systems

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 26, P. 100709 - 100709

Published: Feb. 14, 2024

Language: Английский

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Exploring Liquid-Solid Interface Based Triboelectrification, Structures, and Applications

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110319 - 110319

Published: Sept. 1, 2024

Language: Английский

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Lightweight and Mechanically Robust Cellulosic Triboelectric Materials for Wearable Self-Powered Rehabilitation Training

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Lightweight and robust self-powered wearable devices are of great importance in rehabilitation medical assistance, but this places greater demands on the development functional materials. In particular, a balance between reducing weight materials enhancing their mechanical performance is urgently needed. Here, study reports design strategy based cross-scale strengthening mechanism, which endows triboelectric with mechanically properties, can withstand more than 16,600 times its without any deformation. A biomimetic ordered network structure "wall-septum" obtained by using directional ice templating method, followed formation hydrogen bonds polymer molecular chains promoted salting-out. The resultant material exhibits Young's modulus 130.3 MPa, specific 409.0 kN m/kg. Triboelectric used to construct highly nanogenerators that stable even under an impact 735.5 kPa. accurate acquisition human motion state signal process training realized. This provides universal for lightweight solution application training.

Language: Английский

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A highly sensitive disease pre-screening approach for glycosuria: Triboelectric sensing at the liquid-solid interface

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160901 - 160901

Published: Feb. 1, 2025

Language: Английский

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Fire-retardant hydroxyapatite/cellulosic triboelectric materials for energy harvesting and sensing at extreme conditions

Nano Energy, Journal Year: 2023, Volume and Issue: 117, P. 108851 - 108851

Published: Sept. 1, 2023

Language: Английский

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Flexible Self-Powered Photoelectrochemical Photodetectors Based on Cellulose-Based Hydrogel Electrolytes and Bi₂O₂Se Nanosheets

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(1), P. 594 - 605

Published: Jan. 3, 2024

Photoelectrochemical (PEC)-type photodetectors are gaining significant interest as neoteric self-powered devices, owing to their high spectral responsivity and quick photoresponse. However, the underlying leakage issue makes aqueous electrolyte contained inside PEC-type unsuitable for manufacturing flexible optoelectronics. In this study, we report a flexible, photodetector based on cellulose-based hydrogel. Using hydrogel electron-transferring medium two-dimensional Bi2O2Se nanosheet-coated indium tin oxide glass working electrode, exhibits excellent capability. The hydrogel-based PEC broadband photoresponse in range of 365–850 nm. Moreover, under condition an illumination wavelength 365 nm at bias voltage 0.6 V, 0.68 mA/W, detectivity 2.44 × 108 Jones, fast response time 85/103 ms, which comparable those traditional electrolytes. Additionally, show good flexibility stability, maintaining more than 70.3% photocurrent density even after 100 cycles bending 120°, no obvious decay is observed storage 1 week. Based these results, electrolytes have potential future applications photodetectors.

Language: Английский

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