HIGH-RESOLUTION ELECTRON-MICROSCOPY CHARACTERIZATION OF SSZ-25 ZEOLITE

被引：25

作者：

CHAN, IY ^{[1
]}

LABUN, PA ^{[1
]}

PAN, M ^{[1
]}

ZONES, SI ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,HREM FACIL,CSSS,TEMPE,AZ 85287

来源：

MICROPOROUS MATERIALS | 1995年 / 3卷 / 4-5期

基金：

美国国家科学基金会;

关键词：

HIGH-RESOLUTION ELECTRON MICROSCOPY; ELECTRON DIFFRACTION; SSZ-25; ORGANO-CATION; ADAMANTYL COMPOUNDS;

D O I：

10.1016/0927-6513(94)00050-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

SSZ-25 has been known to have high catalytic activity, but no structure has been reported. A combination of electron microscopy techniques was employed to characterize this new zeolite. This allowed us to determine the unit cell and its relationship to the crystal morphology. The unit cell was hexagonal with a = 1.41 nm and c = 2.52 nm. The individual crystals tend to be thin flakes, and high-resolution electron microscopy (HREM) revealed that this zeolite has a multi-dimensional channel system. The results of this work showed that there are large-pore zeolite channels arranged parallel to the c direction. The HREM results, when taken with other physical characterization methods, confirmed why this zeolite has high catalytic utility.

引用

页码：409 / 418

页数：10

共 13 条

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