Synthesis of Thermally Stable MCM-41 at Ambient Temperature

Hong-Ping Lin, Soofin Cheng, Chung Yuan Mou

研究成果: Article

22 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)375-378
頁數4
期刊Journal of the Chinese Chemical Society
43
發行號5
DOIs
出版狀態Published - 1996 一月 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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