Article Siliceous zeolite-derived topology of amorphous silica

Hirokazu Masai ; Shinji Kohara SAMURAI ORCID (National Institute for Materials Science) ; Toru Wakihara ; Yuki Shibazaki ; Yohei Onodera SAMURAI ORCID (National Institute for Materials Science) ; Atsunobu Masuno ; Sohei Sukenaga ; Koji Ohara ; Yuki Sakai ; Julien Haines ; Claire Levelut ; Philippe Hébert ; Aude Isambert ; David A. Keen ; Masaki Azuma

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Hirokazu Masai, Shinji Kohara, Toru Wakihara, Yuki Shibazaki, Yohei Onodera, Atsunobu Masuno, Sohei Sukenaga, Koji Ohara, Yuki Sakai, Julien Haines, Claire Levelut, Philippe Hébert, Aude Isambert, David A. Keen, Masaki Azuma. Siliceous zeolite-derived topology of amorphous silica. Communications Chemistry. 2023, 6 (), 269. https://doi.org/10.1038/s42004-023-01075-1
SAMURAI

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(abstract)

The topology of amorphous materials is an important topic from the perspective of structural ordering. Compression, one of the sintering processes of solid-state materials, can induce material densification. Here, we have confirmed for the first time that densified amorphous SiO2 fabricated by cold compression of siliceous zeolite is permanently densified while densified glassy SiO2 fabricated by cold compression of glassy SiO2 is not, although the X-ray diffraction data and the density of the former is identical to those of the latter. Moreover, we found that the topology of densified amorphous SiO2 fabricated from siliceous zeolite remains that of crystalline siliceous zeolite, while the relaxation to pristine glassy SiO2 is observed for densified glassy SiO2 after thermal annealing. These results indicate that densified siliceous zeolites retain their crystalline topology, even in the amorphous state, and that it is possible to design new functional amorphous materials by tuning of the topology.

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Keyword: silicalite, zeolite, structure, densified amorphous, topology

Date published: 2023-12-09

Publisher: Springer Science and Business Media LLC

Journal:

  • Communications Chemistry (ISSN: 23993669) vol. 6 269

Funding:

  • MEXT | Japan Society for the Promotion of Science 20H05882
  • MEXT | Japan Society for the Promotion of Science 20H05878
  • MEXT | Japan Society for the Promotion of Science 20H05881
  • MEXT | Japan Society for the Promotion of Science 20H05880
  • MEXT | Japan Society for the Promotion of Science 20H05878
  • MEXT | Japan Society for the Promotion of Science 20H05881
  • MEXT | Japan Society for the Promotion of Science 20H05880

Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1038/s42004-023-01075-1

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Updated at: 2024-04-01 12:30:41 +0900

Published on MDR: 2024-04-01 12:30:41 +0900

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