Effects of Atmosphere on Thermal Stability of Al-MCM-41

Abstract

Abstract: The effects of atmosphere (O₂, N₂ and NH₃) on the thermal stability of Al-MCM-41 were investigated for the first time. The thermal stability, characterized by BET surface area, pore diameter distribution and XRD patterns, showed greatly difference in samples treated under different atmosphere conditions. The samples treated in NH₃ or N₂ remained typical mesoporous structure up to 1010℃, but the mesoporous structure in the samples treated in O₂ collapsed at temperatures larger than 900℃.

Key words: Al-MCM-41, thermal stability, atmosphere

CLC Number:

TB383

ZHANG Cun-Man,XU Zheng,LIU Qian,WAN Ke-Shu. Effects of Atmosphere on Thermal Stability of Al-MCM-41[J]. Journal of Inorganic Materials.

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