摘要
Mesoporous molecular sieves AIMCM-41 were synthesized by static hydrothermal crystallization using cetyltrimethylammonium bromide as template, water glass as silica source and pseudoboehmite as aluminum source. The XRD results showed that the prepared AlMCM-41 mesoporous molecular sieves had high relative crystallinity and long-range order. The relative crystallinity was greater than 27% after calcination at 900 ℃ for 2 hours and was still greater than 14% after ageing in steam at 800 ℃ for 2 hours. The results indicated that both thermal and hydrothermal stabilities of the mesoporous molecular sieves AIMCM-41 were good.
Mesoporous molecular sieves AIMCM-41 were synthesized by static hydrothermal crystallization using cetyltrimethylammonium bromide as template, water glass as silica source and pseudoboehmite as aluminum source. The XRD results showed that the prepared AlMCM-41 mesoporous molecular sieves had high relative crystallinity and long-range order. The relative crystallinity was greater than 27% after calcination at 900 ℃ for 2 hours and was still greater than 14% after ageing in steam at 800 ℃ for 2 hours. The results indicated that both thermal and hydrothermal stabilities of the mesoporous molecular sieves AIMCM-41 were good.
基金
This work was supported by the National Basic Research Program of China(No.2004CB217805)
the National Natural Science Foundation of China(No.20576077).
