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Synthesis of Micropore/Mesopore Composite Materials

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Abstract

The objective of this study was to synthesize micropore-mesopore composite materials by two-step crystallization. The colloidal MFI was first synthesized using a structure-directing agent tetrapropylammonium hydroxide as a template in the first step. This colloid was then self-assembled to form mesoporous structure by using cetyltrimethylammonium bromide as a surfactant. These materials were characterized by powder X-ray diffraction, nitrogen sorption, SEM and TEM. Due to the thick walls produced, it cannot sustain the local strain caused by the crystallization: the mesostructure is collapsed upon heating. The mixed phases of MFI and MCM-41 were obtained by optimizing the synthesis times and reaction temperatures.

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Authors and Affiliations

  1. Department of Geosciences, National Taiwan University, 245 Choushan Road, Taipei, 106, Taiwan

    Der-Shing Lee & Tsung-Kwei Liu

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  1. Der-Shing Lee
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  2. Tsung-Kwei Liu
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Lee, DS., Liu, TK. Synthesis of Micropore/Mesopore Composite Materials. Reaction Kinetics and Catalysis Letters 72, 209–218 (2001). https://doi.org/10.1023/A:1010570224027

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  • DOI: https://doi.org/10.1023/A:1010570224027

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