Lightweight, Superelastic Yet Thermoconductive Boron Nitride Nanocomposite Aerogel for Thermal Energy Regulation
Version 2 2024-06-03, 06:34Version 2 2024-06-03, 06:34
Version 1 2019-06-19, 09:40Version 1 2019-06-19, 09:40
journal contribution
posted on 2024-06-03, 06:34 authored by J Wang, Dan Liu, Q Li, C Chen, Frank ChenFrank Chen, P Song, J Hao, Sulley LiSulley Li, S Fakhrhoseini, Minoo NaebeMinoo Naebe, X Wang, Weiwei LeiWeiwei Lei© 2019 American Chemical Society. Conventional three-dimensional (3D) thermal conductors or heat sinks are normally bulky solids with high density, which is cumbersome and not portable to satisfy current demands for soft and flexible electronic devices. To address this issue, here, a lightweight, superelastic yet thermally conductive boron nitride (BN) nanocomposite aerogel is designed by a facile freeze-drying method. The attained aerogel constituting of tailored interconnected binary inorganic-organic network structure exhibits low bulk density (6.5 mg cm-3) and outstanding mechanical performances for compression, clotting, and stretching. Meanwhile, the aerogel has promising thermal stability and high thermal conductivity over wide temperature ranges (30-300 °C), validating the application even in extremely hot environments. Moreover, the aerogel can serve as a lightweight and elastic heat conductor for the enhancement of thermal energy harvest. Interestingly, during alternate strain loading/unloading under heating, the superelasticity and the anisotropy of thermal conductive transduction make the aerogel enable the elastic thermal energy capture and dynamic regulation. Therefore, our findings provide a potential use for the thermally conductive aerogel in future green energy applications.
History
Journal
ACS NanoVolume
13Pagination
7860-7870Location
United StatesISSN
1936-0851eISSN
1936-086XLanguage
EnglishPublication classification
C Journal article, C1 Refereed article in a scholarly journalCopyright notice
2019, American Chemical SocietyIssue
7Publisher
AMER CHEMICAL SOCUsage metrics
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Science & TechnologyPhysical SciencesTechnologyChemistry, MultidisciplinaryChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryChemistryScience & Technology - Other TopicsMaterials Sciencefunctional BN nanosheetsaerogelhigh temperature thermal conductivethermal managementdissipated heat regulationCONDUCTIVITYFOAMGRAPHENEULTRALIGHTNETWORKFILMSCOMPOSITESGENERATIONAustralian Research Council Discovery Program (DP190103290)Australian Research Council Discovery Early Career Researcher Award scheme (DE150101617 and DE140100716)e National Natural Science Foundation of China under Grant No. 11722433Institute for Frontier Materials100708 Nanomaterials091205 Functional MaterialsMD Multidisciplinary4016 Materials engineering4018 Nanotechnology4004 Chemical engineering
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