Advanced Stretchable Aerogels and Foams for Flexible Electronics and Beyond DOI Open Access
Xing Liang, Qi Sun, Xiaoyu Zhang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 18, 2024

Abstract With the increasing demands for artificial intelligence, robotics, electronic skin, healthcare, and energy storage/conversion, research focus on flexible electronics has started to shift from being merely bendable rollable stretchable. In recent years, stretchable aerogels foams have drawn significant attention in field of due their unique porous structures, low density, high porosity, flexibility. This work provides a comprehensive review state‐of‐the‐art developments foams, encompassing preparation, properties, applications. The preparation methods, typical structures stretching principle, relationship between stretchability, other properties are investigated. Their latest applications strain/pressure sensors, electrodes conductors, chemical sensors biosensors, supercapacitors, batteries, triboelectric nanogenerators, electromagnetic shielding, microwave absorption, thermal management, adsorption, separation/filtration, shape memory introduced. Furthermore, challenges opportunities summarized. guideline development next‐generation high‐performance based materials.

Language: Английский

Wearable Aerogels for Personal Thermal Management and Smart Devices DOI

Bing Wu,

Qingjie Qi, Ling Liu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(14), P. 9798 - 9822

Published: March 29, 2024

Extreme climates have become frequent nowadays, causing increased heat stress in human daily life. Personal thermal management (PTM), a technology that controls the body's microenvironment, has promising strategy to address stress. While effective ordinary environments, traditional high-performance fibers, such as ultrafine, porous, highly thermally conductive, and phase change materials, fall short when dealing with harsh conditions or large temperature fluctuations. Aerogels, third-generation superinsulation material, garnered extensive attention among researchers for their applications building energy conservation, transportation, aerospace, attributed extremely low densities conductivity. aerogels historically faced challenges related weak mechanical strength limited secondary processing capacity, recent advancements witnessed notable progress development of wearable PTM. This underscores potential within serving self-powered smart devices sensors. Review offers timely overview PTM particular focus on wearability suitability. Finally, discussion classifies five types based aerogel function: insulation, heating, cooling, adaptive regulation (involving cooling), utilization devices.

Language: Английский

Citations

40

Nature-inspired interfacial engineering for energy harvesting DOI
Baoping Zhang, Wanghuai Xu, Liang Peng

et al.

Nature Reviews Electrical Engineering, Journal Year: 2024, Volume and Issue: 1(4), P. 218 - 233

Published: March 18, 2024

Language: Английский

Citations

37

Asymmetric Structural MXene/PBO Aerogels for High‐Performance Electromagnetic Interference Shielding with Ultra‐Low Reflection DOI

An Liu,

Hua Qiu,

Xinghan Lu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract Electromagnetic interference (EMI) shielding materials with low electromagnetic (EM) waves reflection characteristics are ideal for blocking EM radiation and pollution. Materials reflectivity must be constructed using excellent absorption properties. However, simultaneously possessing both EMI performance remain scarce, consequently, multilayer structures need to developed. Poly(p‐phenylene–2,6–benzobisoxazole) nanofibers (PNF) prepared by deprotonation. PNF combined MXene heterostructure MXene@Ni in‐situ growth; MXene@Ni/PNF acts as an layer while MXene/PNF reflective layer. Finally, (MXene@Ni/PNF)–(MXene/PNF) aerogels layer‐by‐layer freeze‐drying based on the layered modular design concept. Experimental characterizations revealed that enable efficient absorption‐reflection‐reabsorption of waves, effectively eliminating EMI. When mass ratio Ni in is 1:6 fraction 80 wt.%, exhibit (71 dB) a very coefficient (R = 0.10). Finite element simulations verified developed asymmetric structural achieve high characteristics. In addition, display infrared camouflage ability.

Language: Английский

Citations

37

Lightweight Dual-Functional Segregated Nanocomposite Foams for Integrated Infrared Stealth and Absorption-Dominant Electromagnetic Interference Shielding DOI Creative Commons
Zhonglei Ma,

Ruochu Jiang,

Jiayao Jing

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: June 17, 2024

Abstract Lightweight infrared stealth and absorption-dominant electromagnetic interference (EMI) shielding materials are highly desirable in areas of aerospace, weapons, military wearable electronics. Herein, lightweight high-efficiency dual-functional segregated nanocomposite foams with microcellular structures developed for integrated EMI via the efficient scalable supercritical CO 2 (SC-CO ) foaming combined hydrogen bonding assembly compression molding strategy. The obtained exhibit superior performances benefitting from synergistic effect effective thermal insulation low emissivity, outstanding attributed to synchronous construction structures. Particularly, present a large radiation temperature reduction 70.2 °C at object 100 °C, significantly improved EM wave absorptivity/reflectivity ( A / R ratio 2.15 an ultralow Ti 3 C T x content 1.7 vol%. Moreover, working reliability stability upon dynamic cycles. results demonstrate that have excellent potentials applications

Language: Английский

Citations

36

Fibres—threads of intelligence—enable a new generation of wearable systems DOI
Chao Dang, Zhixun Wang, Theodore Hughes‐Riley

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(17), P. 8790 - 8846

Published: Jan. 1, 2024

Fabrics represent a unique platform for seamlessly integrating electronics into everyday experiences. The advancements in functionalizing fabrics at both the single fibre level and within constructed have fundamentally altered their utility. revolution materials, structures, functionality enables intimate imperceptible integration, rapidly transforming fibres next-generation wearable devices systems. In this review, we explore recent scientific technological breakthroughs smart fibre-enabled fabrics. We examine common challenges bottlenecks physics, chemistry, fabrication strategies, applications that shape future of electronics. propose closed-loop fabric ecosystem encompassing proactive sensing, interactive communication, data storage processing, real-time feedback, energy harvesting, intended to tackle significant technology. Finally, envision computing as sophisticated platforms with system-level attributes management, machine learning, artificial intelligence, intelligent networks.

Language: Английский

Citations

25

Fire-resistant and thermal-insulating alginate aerogel with intelligent bionic armor for exceptional mechanical and fire early-warning performance DOI

Yangtian Shi,

Yue Xu, Kai Xu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155181 - 155181

Published: Aug. 25, 2024

Language: Английский

Citations

25

Electrospun multi-chamber nanostructures for sustainable biobased chemical nanofibers DOI Creative Commons
Deng‐Guang Yu, Jianfeng Zhou

Next Materials, Journal Year: 2024, Volume and Issue: 2, P. 100119 - 100119

Published: Jan. 1, 2024

Language: Английский

Citations

24

Inhibited Passivation by Bioinspired Cell Membrane Zn Interface for Zn–Air Batteries with Extended Temperature Adaptability DOI
Yu Bai,

Danni Deng,

Jinxian Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 27, 2024

Abstract Due to the slow dynamics of mass and charge transfer at Zn|electrolyte interface, stable operation Zn–air batteries (ZABs) is challenging, especially low temperature. Herein, inspired by cell membrane, a hydrophilic‐hydrophobic dual modulated interface constructed. This amphiphilic design enables quasi‐solid‐state (QSS) ZABs display long‐term cyclability 180 h@50 mA cm −2 25 °C. Moreover, record‐long time 173 h@4 −60 °C also achieved, which almost threefolds untreated QSS ZABs. Control experiments (in situ) characterization reveal that growth insulating ZnO passivation layers largely inhibited tuned hydrophilic–hydrophobic behavior. Thus, enhanced dynamic Zn 2+ from attained. As an extension, Al‐air (AABs) with bioinspired show unprecedented discharge stability 420 h@1 ‐40 °C, about two times AABs. bioinspired‐hydrophilic‐hydrophobic modulation strategy may provide reference for energy transform storage devices broad temperature adaptability.

Language: Английский

Citations

24

Mechanically Robust and Thermal Insulating Nanofiber Elastomer for Hydrophobic, Corrosion‐Resistant, and Flexible Multifunctional Electromagnetic Wave Absorbers DOI Open Access

Junxiong Xiao,

Beibei Zhan,

Mukun He

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Abstract Multifunctionalization of electromagnetic wave absorbing materials (EMWAMs) presents a promising avenue for their application in complex scenarios. However, the effective integration multiple supplementary functions into EMWAMs continues to pose significant challenge. Herein, novel nanofiber elastomer (NFE) incorporating multicomponent inorganic FeS 2 /S,N co‐doped carbon nanofibers (NFs) and organic component (Ecoflex) are designed synthesized. The sulfur doping ratios species can be effectively modulated via controlling amount sulfurization temperature. optimized NFs/Ecoflex NFE not only exerted an excellent impedance matching characteristic, but also displays boosted conductive loss polarization capacities. Amongst, achieved ultra‐wide absorption bandwidth (EAB) 7.40 GHz minimum reflection (RL min ) −21.82 dB at thin thickness (≈2.00 mm). Furthermore, simultaneously greatly improved mechanical property, thermal insulation, hydrophobicity, corrosion resistance. Through designing metastructures, with periodically closed‐ring resonant structure realized EAB 32.64 (ranging from 7.36 40.00 GHz). Overall, this research contributes valuable insights design next‐generation satisfactory multifunctionalities, demonstrating potential smart devices challenging environments.

Language: Английский

Citations

20

Freeze casting DOI Creative Commons
Ulrike G. K. Wegst, Paul H. Kamm, Kaiyang Yin

et al.

Nature Reviews Methods Primers, Journal Year: 2024, Volume and Issue: 4(1)

Published: April 25, 2024

Language: Английский

Citations

19