Stable tetrahedral aluminum sites in hexagonal mesoporous aluminosilicates

Yu Han*, Yi Yu, Xian Zhu Xu, Feng Shou Xiao, Xian Chun Liu, Xiu Wen Han, Xin He Bao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A unique templating approach for the synthesis of hexagonal mesoporous aluminosilicates via self-assembly of pre-formed aluminosilcate nanoclusters with the templating micella formed by cetyltrimethylammonium bromide (CTAB) is described. The obtained materials of MAS-5 are hydrothermally stable, which is shown by X-ray diffraction (XRD) analysis. Furthermore, as characterized by NMR technique, MAS-5 has stable tetrahedral aluminum sites that is the major contributions to the acidity of aluminosilicate molecular sieve, and on non-framework aluminium species in the samples was observed.

Original languageEnglish (US)
Pages (from-to)711-714
Number of pages4
JournalChinese Journal of Chemistry
Volume20
Issue number8
DOIs
StatePublished - Aug 2002

Keywords

  • Al NMR spectroscopy
  • Ordered mesoporous aluminosilicates
  • Thermal and hydrothermal stability
  • X-ray diffraction (XRD)

ASJC Scopus subject areas

  • Chemistry(all)

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