Abstract
Zeolite beta with SiO2/Al2O3 ratios from 30 to 730 was synthesized by a steam-assisted crystallization method, and the crystallized products obtained within 24 h were characterized by means of chemical analyses, XRD, FE-SEM, 29Si-MAS NMR, N2 adsorption, and temperature-programmed decomposition of tetraethylammonium cation occluded in the micropores of zeolite beta. Based on these results, the crystallization mechanism is discussed herein. It was found that agglomerates of nano-particles were formed from a dry gel before the development of a periodical structure in a long-range order, which can be detected by XRD. After several hours of crystallization, morphological changes in nano-particle agglomerates proceeded to give highly crystalline zeolite beta.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 56 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2002 Oct |
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Keywords
- Crystallization mechanism
- SiO/AlO ratio
- Steam-assisted crystallization
- Zeolite beta
ASJC Scopus subject areas
- Catalysis
- Materials Science(all)
Cite this
Crystallization behavior of zeolite beta during steam-assited crystallization of dry gel. / Matsukata, Masahiko; Osaki, T.; Ogura, M.; Kikuchi, E.
In: Microporous and Mesoporous Materials, Vol. 56, No. 1, 10.2002, p. 1-10.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Crystallization behavior of zeolite beta during steam-assited crystallization of dry gel
AU - Matsukata, Masahiko
AU - Osaki, T.
AU - Ogura, M.
AU - Kikuchi, E.
PY - 2002/10
Y1 - 2002/10
N2 - Zeolite beta with SiO2/Al2O3 ratios from 30 to 730 was synthesized by a steam-assisted crystallization method, and the crystallized products obtained within 24 h were characterized by means of chemical analyses, XRD, FE-SEM, 29Si-MAS NMR, N2 adsorption, and temperature-programmed decomposition of tetraethylammonium cation occluded in the micropores of zeolite beta. Based on these results, the crystallization mechanism is discussed herein. It was found that agglomerates of nano-particles were formed from a dry gel before the development of a periodical structure in a long-range order, which can be detected by XRD. After several hours of crystallization, morphological changes in nano-particle agglomerates proceeded to give highly crystalline zeolite beta.
AB - Zeolite beta with SiO2/Al2O3 ratios from 30 to 730 was synthesized by a steam-assisted crystallization method, and the crystallized products obtained within 24 h were characterized by means of chemical analyses, XRD, FE-SEM, 29Si-MAS NMR, N2 adsorption, and temperature-programmed decomposition of tetraethylammonium cation occluded in the micropores of zeolite beta. Based on these results, the crystallization mechanism is discussed herein. It was found that agglomerates of nano-particles were formed from a dry gel before the development of a periodical structure in a long-range order, which can be detected by XRD. After several hours of crystallization, morphological changes in nano-particle agglomerates proceeded to give highly crystalline zeolite beta.
KW - Crystallization mechanism
KW - SiO/AlO ratio
KW - Steam-assisted crystallization
KW - Zeolite beta
UR - http://www.scopus.com/inward/record.url?scp=0036771955&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036771955&partnerID=8YFLogxK
U2 - 10.1016/S1387-1811(02)00412-2
DO - 10.1016/S1387-1811(02)00412-2
M3 - Article
VL - 56
SP - 1
EP - 10
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
IS - 1
ER -