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Synthesis of mesoporous molecular sieves: influence of aluminum source on Al incorporation in MCM-41
Authors:Kondam Madhusudan Reddy  Chunshan Song
Affiliation:(1) Fuel Science Program, Department of Material Science and Engineering, The Pennsylvania State University, 16802 University Park, PA, USA
Abstract:Three series of mesoporous aluminosilicate molecular sieves, MCM-41, with various Si/Al ratios were synthesized using different aluminum sources (aluminum isopropoxide, pseudo boehmite and aluminum sulfate). XRD analysis, temperature programmed desorption ofn-butylamine,27Al and29Si MAS NMR, and catalytic alkylation test indicated that aluminum isopropoxide is a better source for incorporating aluminum in the framework of MCM-41 type molecular sieves with better crystallinity and acid characteristics.
Keywords:mesoporous materials  MCM-41  synthesis  aluminum source
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