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

By Kristy L. Erickson, T. Bostrom, R. Frost. 2005

143 citations recorded by the source corpus.

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.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/7390762a23d4c7ca3569ec1e220ce72675b39644

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In Materials Chemistry

1. K. Goh
2. T. Lim
3. Z. Dong

Citations in the corpus

• Application of layered double hydroxides for removal of oxyanions: a review. (2008, background): “It is interesting to note that the calcined LDHs are able to regenerate the layered structure when they are exposed to water and anions (Marchi and Apesteguía, 1998; Rocha et al., 1999; Erickson et al., 2005).”