Superstrong Lightweight Aerogel with Supercontinuous Layer by Surface Reaction

© 2025 Wiley‐VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 10 vom: 03. März, Seite e2418083
Auteur principal: Zhou, Tianpei (Auteur)
Autres auteurs: He, Linbo, Zhen, Yu, Tai, Xiaolin, Dai, Shun, Wu, Kaijin, Ding, Honghe, Xia, Tianpu, Zhang, Xun, Cai, Xueru, Jiang, Fangzhou, Zhu, Zhiqiang, Huang, Fangsheng, Li, Chen, Li, Yaping, Zhu, Junfa, Chu, Wangsheng, Lin, Yue, Ni, Yong, Xie, Yi, Wu, Changzheng
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article aerogel supercontinuous layer superstrong and ultralight surface chemistry reaction thermal insulation
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520 |a Breaking the thermal, mechanical and lightweight performance limit of aerogels has pivotal significance on thermal protection, new energy utilization, high-temperature catalysis, structural engineering, and physics, but is severely limited by the serious discrete characteristics between grain boundary and nano-units interfaces. Herein, a thermodynamically driven surface reaction and confined crystallization process is reported to synthesize a centimeter-scale supercontinuous ZrO2 nanolayer on ZrO2-SiO2 fiber aerogel surface, which significantly improved its thermal and mechanical properties with density almost unchanged (≈26 mg cm-3). Systematic structure analysis confirms that the supercontinuous layer achieves a close connection between grains and fibers through Zr─O─Si bonds. The as-prepared aerogel exhibits record-breaking specific strength (≈84615 N m kg-1, can support up to ≈227 272 times aerogel mass) and dynamic impact resistance (withstanding impacts up to 500 times aerogel mass and up to 200 cycling stability at 80% strain). Besides, its temperature resistance has also been greatly optimized (400 °C enhancement, stability at 1500 °C). This work will provide a new perspective for exploring the limits of lightweight, high strength, and thermal properties of solid materials 
650 4 |a Journal Article 
650 4 |a aerogel 
650 4 |a supercontinuous layer 
650 4 |a superstrong and ultralight 
650 4 |a surface chemistry reaction 
650 4 |a thermal insulation 
700 1 |a He, Linbo  |e verfasserin  |4 aut 
700 1 |a Zhen, Yu  |e verfasserin  |4 aut 
700 1 |a Tai, Xiaolin  |e verfasserin  |4 aut 
700 1 |a Dai, Shun  |e verfasserin  |4 aut 
700 1 |a Wu, Kaijin  |e verfasserin  |4 aut 
700 1 |a Ding, Honghe  |e verfasserin  |4 aut 
700 1 |a Xia, Tianpu  |e verfasserin  |4 aut 
700 1 |a Zhang, Xun  |e verfasserin  |4 aut 
700 1 |a Cai, Xueru  |e verfasserin  |4 aut 
700 1 |a Jiang, Fangzhou  |e verfasserin  |4 aut 
700 1 |a Zhu, Zhiqiang  |e verfasserin  |4 aut 
700 1 |a Huang, Fangsheng  |e verfasserin  |4 aut 
700 1 |a Li, Chen  |e verfasserin  |4 aut 
700 1 |a Li, Yaping  |e verfasserin  |4 aut 
700 1 |a Zhu, Junfa  |e verfasserin  |4 aut 
700 1 |a Chu, Wangsheng  |e verfasserin  |4 aut 
700 1 |a Lin, Yue  |e verfasserin  |4 aut 
700 1 |a Ni, Yong  |e verfasserin  |4 aut 
700 1 |a Xie, Yi  |e verfasserin  |4 aut 
700 1 |a Wu, Changzheng  |e verfasserin  |4 aut 
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773 1 8 |g volume:37  |g year:2025  |g number:10  |g day:03  |g month:03  |g pages:e2418083 
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