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Ultralow-Bulk-Density Transparent Boehmite Nanofiber Cryogel Monoliths and Their Optical Properties for a Volumetric Three-Dimensional Display

  • Gen Hayase*
    Gen Hayase
    Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8578, Japan
    *E-mail: [email protected]
    More by Gen Hayase
  • Takuya Funatomi
    Takuya Funatomi
    Graduate School of Information Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma 630-0192, Japan
  • , and 
  • Kota Kumagai
    Kota Kumagai
    Graduate School of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya 321-8585, Japan
    More by Kota Kumagai
Cite this: ACS Appl. Nano Mater. 2018, 1, 1, 26–30
Publication Date (Web):December 15, 2017
https://doi.org/10.1021/acsanm.7b00097
Copyright © 2017 American Chemical Society

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    Supporting Info (3)»

    Abstract

    Abstract Image

    Ultralow-bulk-density transparent porous monoliths have unique optical properties, such as low refractive index, and usually can be obtained via supercritical drying to prevent deformation and collapse of the microstructure. We succeeded in fabricating a transparent cryogel with a bulk density of 3.5 mg cm–3 via vacuum freeze-drying of a monolithic wet gel composed of boehmite nanofibers. In the case of the addition of a functional material into the starting sol, a composite material can be obtained. The composite cryogel with a fluorescent molecule was applied to a volumetric three-dimensional display.

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    Supporting Information

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    The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acsanm.7b00097.

    • Experimental details, schematic image of direct/global light, photograph and direct/global image of the gels, FESEM image of the cryogel, photograph and transmittance spectrum of the composite cryogel, photograph of an acrylic light emitter, photograph and illustration of spreading of the depth of focus, spectrum of the LCD, and image showing the analyzed region of the gels (PDF)

    • Time-lapse movie of the BNF gel during vacuum drying (MPG)

    • Movie using a cryogel as a light emitter of a volumetric 3D display (MPG)

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    Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html.

    Cited By

    This article is cited by 7 publications.

    1. Wei Wang, Shu Jian Chen, Wenhui Duan, Kwesi Sagoe-Crentsil, Chathurdara Sri Nadith Pathirage, Ling Li, Junlin Lin. Revealing Microstructural Modifications of Graphene Oxide-Modified Cement via Deep Learning and Nanoporosity Mapping: Implications for Structural Materials’ Performance. ACS Applied Nano Materials 2022, 5 (5) , 7092-7102. https://doi.org/10.1021/acsanm.2c01044
    2. Gen Hayase. Fabrication of Boehmite Nanofiber Internally-Reinforced Resorcinol-Formaldehyde Macroporous Monoliths for Heat/Flame Protection. ACS Applied Nano Materials 2018, 1 (11) , 5989-5993. https://doi.org/10.1021/acsanm.8b01518
    3. Yuhan Gu, Shigang Wan, Qing Liu, Changqing Ye. Luminescent Materials for Volumetric Three-Dimensional Displays Based on Photoactivated Phosphorescence. Polymers 2023, 15 (9) , 2004. https://doi.org/10.3390/polym15092004
    4. Gen Hayase, Keita Yamazaki, Tetsuya Kodaira. Fabrication of boehmite nanofiber aerogels by a phosphate gelation process for optical applications. Journal of Sol-Gel Science and Technology 2022, 104 (3) , 558-565. https://doi.org/10.1007/s10971-022-05867-0
    5. Linyan Wang, Wenjie Li, Tianliang Pang, Hang Liu, Chan Wang, Liang Zhou, Fei He. Preparation and characterization of nanofiber- and nanorod-like boehmite aerogels via ammonia vapor gelation method. Journal of Sol-Gel Science and Technology 2022, 104 (2) , 300-310. https://doi.org/10.1007/s10971-022-05944-4
    6. Gen Hayase. Boehmite Nanofiber–Polymethylsilsesquioxane Composite Aerogels: Synthesis, Analysis, and Thermal Conductivity Control via Compression Processing. Bulletin of the Chemical Society of Japan 2021, 94 (1) , 70-75. https://doi.org/10.1246/bcsj.20200205
    7. Jie Zhu, Shasha Lv, Tonghui Yang, Tao Huang, Hao Yu, Qinghua Zhang, Meifang Zhu. Facile and Green Strategy for Designing Ultralight, Flexible, and Multifunctional PVA Nanofiber‐Based Aerogels. Advanced Sustainable Systems 2020, 4 (4) https://doi.org/10.1002/adsu.201900141

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