Role of High-Resolution Electron Microscopy in the Identification and Characterization of New Crystalline, Microporous Materials: "Reading Off" the Structure and Symmetry Elements of Pentasil Molecular Sieves

被引：38

作者：

Terasaki, Osamu ^{[1
]}

Thomas, John M. ^{[2
]}

Millward, G. Robert ^{[3
]}

Watanabe, D. ^{[1
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 980, Japan

[2] Royal Inst Great Britain, Davy Faraday Res Lab, London W1X 4BS, England

[3] Univ Cambridge, Dept Phys Chem, Cambridge CB2 1EP, England

来源：

CHEMISTRY OF MATERIALS | 1989年 / 1卷 / 01期

关键词：

D O I：

10.1021/cm00001a028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The advantages of establishing the structure of new microporous, crystalline solids such as zeolites, porosils, and aluminum phosphates by using high-resolution electron microscopy are assessed and illustrated with reference to ZSM-5. In particular, it is shown that the structure and symmetry elements of this member of the pentasil family may, by comparison of computed and observed (at 200 and 1000 keV) images, be "read off" directly in real space. The technique is likely to be of especial value in characterizing many new structures, including those that, at the sub-unit-cell level, are composed of recurrent intergrowths of other structures.

引用

页码：158 / 162

页数：6

共 31 条

[1] EVIDENCE FROM COMPUTATIONAL CHEMISTRY FOR THE EXISTENCE OF A NEW ZEOLITIC CATALYST [J].