Synthesis of Thermally Stable MCM-41 at Ambient Temperature

Hong-Ping Lin, Soofin Cheng, Chung Yuan Mou

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22 Citations (Scopus)

Abstract

A new process to synthesize thermally stable mesoporous molecular sieves of MCM-41 structure based on delayed neutralization at ambient temperature was investigated. All samples synthesized by this new method have BET surface areas of about 1100 m2/g and possess high thermal stability up to 900 °C. Higher crystallinity and less lattice constriction after calcination were observed for samples with a longer aging period. Those samples with aging time longer than 10 days exhibited four characteristic XRD peaks of MCM-41 both before and after calcination at 560 °C. The N2 adsorption-desorption isotherms of the calcined samples showed larger average pore size and more homogenous pore size distribution. The method was also successfully applied to the synthesis of MCM-41 with different surfactants of hydrocarbon length with 10-18 carbons and proves to be a simple route for obtaining thermally stable MCM-41 at room temperature.

Original languageEnglish
Pages (from-to)375-378
Number of pages4
JournalJournal of the Chinese Chemical Society
Volume43
Issue number5
DOIs
Publication statusPublished - 1996 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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