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Issue 2, 2006
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A new approach to the determination of atomic-architecture of amorphous zeolite precursors by high-energy X-ray diffraction technique

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Abstract

The structure of amorphous precursor species formed under hydrothermal conditions, prior to the onset of crystallization of microporous aluminosilicate zeolites, is determined employing high-energy X-ray diffraction (HEXRD). The investigation, combined with the use of reverse Monte Carlo modelling suggests that even numbered rings, especially 4R (R: ring) and 6R, which are the dominant aluminosilicate rings in zeolite A, have already been produced in the precursor. The model implies that the formation of double 4Rs occurs at the final step of the crystallization of zeolite A.

Graphical abstract: A new approach to the determination of atomic-architecture of amorphous zeolite precursors by high-energy X-ray diffraction technique

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Publication details

The article was received on 12 Sep 2005, accepted on 24 Oct 2005 and first published on 10 Nov 2005


Article type: Communication
DOI: 10.1039/B512840D
Citation: Phys. Chem. Chem. Phys., 2006,8, 224-227
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    A new approach to the determination of atomic-architecture of amorphous zeolite precursors by high-energy X-ray diffraction technique

    T. Wakihara, S. Kohara, G. Sankar, S. Saito, M. Sanchez-Sanchez, A. R. Overweg, W. Fan, M. Ogura and T. Okubo, Phys. Chem. Chem. Phys., 2006, 8, 224
    DOI: 10.1039/B512840D

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