Crystallization behavior of zeolite beta during steam-assited crystallization of dry gel

M. Matsukata, T. Osaki, M. Ogura, E. Kikuchi

研究成果: Article査読

91 被引用数 (Scopus)

抄録

Zeolite beta with SiO2/Al2O3 ratios from 30 to 730 was synthesized by a steam-assisted crystallization method, and the crystallized products obtained within 24 h were characterized by means of chemical analyses, XRD, FE-SEM, 29Si-MAS NMR, N2 adsorption, and temperature-programmed decomposition of tetraethylammonium cation occluded in the micropores of zeolite beta. Based on these results, the crystallization mechanism is discussed herein. It was found that agglomerates of nano-particles were formed from a dry gel before the development of a periodical structure in a long-range order, which can be detected by XRD. After several hours of crystallization, morphological changes in nano-particle agglomerates proceeded to give highly crystalline zeolite beta.

本文言語English
ページ(範囲)1-10
ページ数10
ジャーナルMicroporous and Mesoporous Materials
56
1
DOI
出版ステータスPublished - 2002 10

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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