Layered inorganic-organic nanocomposites

Application to photofunctional materials and conversion to inorganic microporous materials

Kazuyuki Kuroda, Makoto Ogawa, Tsuneo Yanagisawa, Chuzo Kato

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Layered inorganic-organic nanocomposites can be prepared by intercalation of organic compounds into various two dimensional inorganic compounds, such as clay minerals and layered polysilicates. Two different roles of organic guest species are described in the application of intercalation compounds to development of functional materials. The first case shows that organic substances with peculiar photochemical properties can be incorporated in the nanometer-scaled interlayer spaces. Luminescence behavior and photochemical hole burning (PHB) of layered inorganic-organic nanocomposites are investigated from the viewpoint of host-guest interactions. The luminescence maxima of intercalated Ru(bpy)3 2+ incorporated into fluor-tetrasilicic mica cointercalated with poly(vinylpyrrolidone) shifted gradually toward blue with the decrease in the loading of Ru(bpy)3 2+. Ru(bpy)3 2+ was effectively isolated to suppress self quenching due to aggregation even at its high concentration loading. 1,4-Dihydroxyanthraquinone which is known to show a PHB reaction was intercalated into a tetramethylammonium pillared clay mineral and persistent spectral zero-phonon hole was observed at liquid helium temperatures. In spite of the high concentration of 1,4-dihydroxyanthraquinone, a narrow hole was obtained with no distinct decrease in burning efficiency if compared with those doped in ordinary polar polymers or organic glasses. In the second case, intercalation of organic substances into a layered polysilicate induces the change of the layered structure to form a three-dimensional silicate network by condensation of silanol groups in adjacent layers. This phenomenon indicates that novel microporous materials with controlled pore sizes can be prepared through inorganic-organic nanocomposites.

    Original languageEnglish
    Title of host publicationMaterials Research Society Symposium Proceedings
    Place of PublicationPittsburgh, PA, United States
    PublisherPubl by Materials Research Society
    Pages335-346
    Number of pages12
    Volume286
    ISBN (Print)1558991816
    Publication statusPublished - 1993
    EventProceedings of the 3rd Biennial Meeting of Chemical Perspectives of Microelectronic Materials - Boston, MA, USA
    Duration: 1992 Nov 301992 Dec 3

    Other

    OtherProceedings of the 3rd Biennial Meeting of Chemical Perspectives of Microelectronic Materials
    CityBoston, MA, USA
    Period92/11/3092/12/3

    Fingerprint

    Microporous materials
    Nanocomposites
    Intercalation
    Clay minerals
    Luminescence
    Inorganic compounds
    Silicates
    Intercalation compounds
    Helium
    Functional materials
    Mica
    Organic compounds
    Pore size
    Condensation
    Quenching
    Polymers
    Agglomeration
    Glass
    Liquids
    Temperature

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials

    Cite this

    Kuroda, K., Ogawa, M., Yanagisawa, T., & Kato, C. (1993). Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials. In Materials Research Society Symposium Proceedings (Vol. 286, pp. 335-346). Pittsburgh, PA, United States: Publ by Materials Research Society.

    Layered inorganic-organic nanocomposites : Application to photofunctional materials and conversion to inorganic microporous materials. / Kuroda, Kazuyuki; Ogawa, Makoto; Yanagisawa, Tsuneo; Kato, Chuzo.

    Materials Research Society Symposium Proceedings. Vol. 286 Pittsburgh, PA, United States : Publ by Materials Research Society, 1993. p. 335-346.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kuroda, K, Ogawa, M, Yanagisawa, T & Kato, C 1993, Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials. in Materials Research Society Symposium Proceedings. vol. 286, Publ by Materials Research Society, Pittsburgh, PA, United States, pp. 335-346, Proceedings of the 3rd Biennial Meeting of Chemical Perspectives of Microelectronic Materials, Boston, MA, USA, 92/11/30.
    Kuroda K, Ogawa M, Yanagisawa T, Kato C. Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials. In Materials Research Society Symposium Proceedings. Vol. 286. Pittsburgh, PA, United States: Publ by Materials Research Society. 1993. p. 335-346
    Kuroda, Kazuyuki ; Ogawa, Makoto ; Yanagisawa, Tsuneo ; Kato, Chuzo. / Layered inorganic-organic nanocomposites : Application to photofunctional materials and conversion to inorganic microporous materials. Materials Research Society Symposium Proceedings. Vol. 286 Pittsburgh, PA, United States : Publ by Materials Research Society, 1993. pp. 335-346
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