【摘要】 以柠檬酸为成孔剂,正硅酸乙酯为硅源,硫酸铝为铝源,在水热条件下合成一种新型介孔硅铝材料,并采用X射线衍射(XRD)和透射电镜(TEM)对样品进行表征.N2吸附-脱附结果表明,新型介孔材料在1 173 K的高温条件下焙烧5 h以及在沸水中分别处理48,96,192,288 h后,样品依然保持较好的介孔结构,表明样品具有较好的热及水热稳定性.更多还原

【Abstract】 A novel mesoporous aluminosilicate material was synthesized with citric acid as pore forming agent,tetraethoxysilane(TEOS) and Al2(SO4)3·18H2O as silica source and aluminum source,respectively.The sample was characterized by XRD and TEM.The results of N2 adsorption-desorption showed that the mesoporous structure of novel material was maintained under the condition of both calcinations at 1 173 K in air for 5 h and treatment in the boiling water for 48,96,192 and 288 h.更多还原