Directing the pore dimensions in the mesoporous molecular sieve MCM-41

C F Cheng, W Z Zhou, J Klinowski

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

We describe a straightforward method of controlling the channel diameter of the mesoporous molecular sieve MCM-41 in the 26.1-36.5 Angstrom range and the wall thickness in the 13.4-26.8 Angstrom range while using the same gel mixture. The thickest-walled material can withstand calcination at 900 degrees C with little structural damage. We have observed new morphological features involving sealed silicate 'tubes' and 'vesicles' up to 1200 Angstrom across, and suggest a mechanism for the increase of wall thickness and channel diameter.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalChemical Physics Letters
Volume263
Issue number1-2
Publication statusPublished - 6 Dec 1996

Keywords

  • MECHANISM

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