Oleate-LDH hybrids by the successive use of the clay structural "memory effect"

Gabriela Carja, Yoshikazu Kameshima, Gabriela Ciobanu, Kiyoshi Okada

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Oleate/LDH composites have been obtain by calcination-reconstruction procedures by the successive uses of the anionic clay memory effect. XRD and FTIR analysis were used to study the structural characteristics of the hybrid samples. The amount of oleate in the hybrid formulation of the clay matrix is highest after the second calcination-reconstruction cycle. After the fourth cycle the clay structure is not recovered anymore. This result points out to the "short" structural "memory" of the LDH-like clays. Textural features of the samples were studied by N 2 adsorption at 77 K, SEM and TEM analyses. The oleate/LDH hybrids, obtained by the successive uses of the clay "memory," are defined by different crystallinity and micromorphological characteristics.

Original languageEnglish
Pages (from-to)2880-2884
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number4
DOIs
Publication statusPublished - Apr 1 2010
Externally publishedYes

Keywords

  • Anionic clay
  • Hydrotalcite
  • Memory effect
  • Oleate

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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