A study of structural memory effects in synthetic hydrotalcites using environmental SEM

被引：126

作者：

Erickson, KL

Bostrom, TE

Frost, RL

机构：

[1] Queensland Univ Technol, Sch Phys & Chem Sci, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia

[2] Queensland Univ Technol, Analyt Electron Microscopy Facil, Brisbane, Qld 4001, Australia

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 2-3期

基金：

澳大利亚研究理事会;

关键词：

hydrotalcites; structural memory effects; environmental SEM; X-ray diffraction;

D O I：

10.1016/j.matlet.2004.08.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 'memory' effect in synthetic hydrotalcite was demonstrated using d(001) and d(002) peaks in X-ray diffraction (XRD) patterns. These peaks were present in the hydrotalcite before it was calcined and after it was reformed but not in the thermally activated hydrotalcite. SEM images were taken of the hydrotalcite to show the layering and size of the crystals. Environmental SEM (ESEM) images were taken of the thermally activated hydrotalcite, and then manipulation of temperature and pressure allowed water to condense on the sample. The ESEM images show that the layered structure is reforming following exposure to water. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：226 / 229

页数：4

共 17 条

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[2]

[Anonymous], EC ACTIVITY

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