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

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

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalMicroporous and Mesoporous Materials
Volume56
Issue number1
DOIs
Publication statusPublished - 2002 Oct 1

Keywords

  • Crystallization mechanism
  • SiO/AlO ratio
  • Steam-assisted crystallization
  • Zeolite beta

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Crystallization behavior of zeolite beta during steam-assited crystallization of dry gel'. Together they form a unique fingerprint.

  • Cite this