Synthesis and evaluation of bulky Y-zeolites by hydrothermal hot-pressing method

Atsushi Nakahira, Shinichi Takezoe, Yuki Yamasaki, Yukichi Sasaki, Yuichi Ikuhara

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    In this study, the syntheses of bulks of Y-zeolite were attempted by a hydrothermal hot-pressing (HHP) method with various conditions such as the amounts and concentrations of NaOH solution, reaction temperatures, and reaction times. Dense bulks of Y-zeolite were successfully obtained by this HHP method. Under an optimum synthetic condition of HHP, solidified bulks of Y-zeolite possessed translucency with high values of specific surface area. Transmission electron microscopy observation of these translucent bulks of Y-zeolite showed that their microstructures were densified like polycrystalline ceramics sintered by heat treatments and no amorphous phase was observed at the boundaries of Y-zeolite grains. As a result, in these unique bulks of Y-zeolite synthesized by the HHP method, the microporous network was thoroughly connected at the grain boundaries of Y-zeolite.

    Original languageEnglish
    Pages (from-to)2322-2326
    Number of pages5
    JournalJournal of the American Ceramic Society
    Volume90
    Issue number8
    DOIs
    Publication statusPublished - 2007 Aug

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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