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

Erickson, Kristy L. and Bostrom, Thor E. and Frost, Ray L. (2004) A study of structural memory effects in synthetic hydrotalcites using environmental SEM. Materials Letters, 59(2-3). pp. 226-229.

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DOI : 10.1016/j.matlet.2004.08.035

Abstract

The ‘memory’ effect in synthetic hydrotalcite was demonstrated using d(001) and d(002) peaks in 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.

ID Code:	800
Item Type:	Journal Article
Keywords :	Hydrotalcites, Structural memory effects, Environmental SEM
ISSN:	0167-577X
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2004 Elsevier
Copyright Statement :	Reproduced in accordance with the copyright policy of the publisher: This journal is available online.
Deposited On:	10 Mar 2005
Last Modified:	03 Dec 2008 12:08

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