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Studies on secondary synthesis and characterisation of boron-modified ZSM-5 zeolites

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Abstract

A post synthesis modification (“secondary synthesis”) of aluminosilicates has been described in order to produce boron-containing zeolites of the pentasile type: Isomorphic incorporation of boron is verified by means of 11B MAS NMR spectroscopy, laser ablation ICP AES and X-ray powder diffraction. 27Al MAS NMR spectroscopy is used for further characterisation of the resulting material. In order to create lattice defects, which were necessary for successful post synthesis incorporation of foreign atoms, various pretreatments were used. The effects of pH during the secondary synthesis were determined.

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Authors and Affiliations

  1. Institute of Organic Chemistry, Analytical Division, Karl Franzens University, Heinrich Strasse 28, A-8010, Graz, Austria

    Brit Meier

  2. Karl Winnacker Institute of DECHEMA e. V., D-60486, Frankfurt/M., Germany

    Wladimir Reschetilowski

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  1. Brit Meier
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  2. Wladimir Reschetilowski
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Meier, B., Reschetilowski, W. Studies on secondary synthesis and characterisation of boron-modified ZSM-5 zeolites. Fresenius J Anal Chem 349, 145–147 (1994). https://doi.org/10.1007/BF00323242

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  • DOI: https://doi.org/10.1007/BF00323242

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