Wakihara, T and Sato, K and Kohara, S and Sankar, G and Tatami, J and Komeya, K and Meguro, T and MacKenzie, KJD (2010) Changes in the medium-range order of zeolite A by mechanical and thermal amorphization. MICROPOR MESOPOR MAT , 136 (1-3) 92 - 96. 10.1016/j.micromeso.2010.08.002.
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Abstract
Crystalline zeolite A was amorphized by mechanical and thermal treatments, and the resulting changes in the atomic arrangement are characterized by HEXRD, Al-27 MAS NMR and Raman spectroscopy. HEXRD measurements revealed that the 6R and 8R rings are distorted and/or destroyed, while the 4R ring is preserved during mechanical treatment, but all rings are distorted and/or destroyed by thermal treatment. Data from Al-27 MAS NMR and Raman spectroscopy also support these results. Furthermore, recrystallization behavior is found to be different between mechanically and thermally amorphized solids. (C) 2010 Elsevier Inc. All rights reserved.
| Type: | Article |
|---|---|
| Title: | Changes in the medium-range order of zeolite A by mechanical and thermal amorphization |
| DOI: | 10.1016/j.micromeso.2010.08.002 |
| Keywords: | Ring, Amorphization, Medium-range order, Zeolite A, X-RAY-DIFFRACTION, HYDROTHERMAL SYNTHESIS, RAMAN-SPECTROSCOPY, ALUMINOSILICATE ZEOLITES, NEUTRON-DIFFRACTION, HIGH-PRESSURE, SILICA, ELUCIDATION, PRECURSORS, GLASS |
| UCL classification: | UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry |
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