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MCM-41 type materials with low Si/Al ratios

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Abstract

The synthesis of MCM-41 type materials with high amounts of tetrahedral aluminum is reported. Transmission electron microscopy with EDX elemental analysis shows that when using a tetraalkylammonium base in the synthesis of MCM-41 materials Si/Al ratios as low as 12 are possible. In all cases the MCM-41 materials contain an aluminum-rich dense phase in which the aluminum is also tetrahedrally coordinated. This dense phase consumes most of the aluminum of the synthesis mixture.

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Authors and Affiliations

  1. Laboratory for Organic Chemistry and Catalysis, Delft University of Technology, Julianalaan 136, 2628, BL Delft, The Netherlands

    K. R. Kloetstra & H. van Bekkum

  2. Laboratory for Materials Science, Delft University of Technology, Rotterdamseweg 137, 2628, AL Delft, The Netherlands

    H. W. Zandbergen

Authors
  1. K. R. Kloetstra
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  2. H. W. Zandbergen
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  3. H. van Bekkum
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Kloetstra, K.R., Zandbergen, H.W. & van Bekkum, H. MCM-41 type materials with low Si/Al ratios. Catal Lett 33, 157–163 (1995). https://doi.org/10.1007/BF00817055

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  • DOI: https://doi.org/10.1007/BF00817055

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