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- W655958042 abstract "Using mixed cationic-nonionic triblock copolymer surfactants as template, MCM-48 mesoporous molecular sieves were hydrothermally synthesized in alkaline medium. In 1TEOS (tetraethyl orthosilicate):0.125CTAB (cetyltrimethylammonium bromide)∶nP123 (polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer)∶0.50NaOH (sodium hydroxide)∶61H2O (molar ratio) system with n value in the range of 0.000 625~0.01875. The resulting samples were characterized by XRD, N2 adsorption-desorption and SEM methods. The results show that the consumption of cationic surfactant for synthesizing MCM-48 can be greatly reduced by using polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer (P123) as co-template. In addition, MCM-48 synthesized has high BET surface area, highly ordered pore structure, narrow pore size distribution and higher hydrothermal stability." @default.
- W655958042 created "2016-06-24" @default.
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- W655958042 date "2008-07-10" @default.
- W655958042 modified "2023-10-18" @default.
- W655958042 title "以混合阳离子-嵌段共聚物表面活性剂为模板合成介孔MCM-48" @default.
- W655958042 hasPublicationYear "2008" @default.
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