Hydrothermally Stable Ordered Hexagonal Mesoporous Aluminosilicates Assembled from a Triblock Copolymer and Preformed Aluminosilicate Precursors in Strongly Acidic Media

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• 作者：Yu Han ; Shuo Wu ; Yinyong Sun ; Dongsheng Li ; Feng-Shou Xiao ; Jun Liu ; and Xiaozong Zhang
• 刊名：Chemistry of Materials
• 出版年：2002
• 出版时间：March 2002
• 年：2002
• 卷：14
• 期：3
• 页码：1144 - 1148
• 全文大小：60K
• 年卷期：v.14,no.3(March 2002)
• ISSN：1520-5002

文摘

Mesoporous aluminosilicates (MAS-9) with ordered hexagonal struture have been preparedby assembly of preformed aluminosilicate precursors with a triblock copolymer in stronglyacidic media by a two-step procedure. MAS-9 exhibits extraordinarily good hydrothermalstability and high catalytic activities for the cracking of both cumene and 1,3,5-tri-isopropylbenzene. Even after treatment in boiling water for 120 h, MAS-9 continues to showa large surface area (680 m²/g) and high catalytic activities. Furthermore, this two-stepstrategy could be used as a new general method for the preparation of mesoporousaluminosilicate materials under strongly acidic conditions.