The textural properties of iron substituted hydrotalcites obtained in a tailored aqueous-organic synthesis medium

Gabriela Carja, Hiromi Obata, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Iron containing layered double hydroxides with specific textural properties are synthesized by using tailored compositions of an aqueous-organic synthesis medium as a controlled variable synthesis parameter. SEM analysis points out that the nature of the organic solvent and the aqueous-organic solvent ratio contribute in establishing not only different sizes and/or shapes of the hydrotalcite-like particles, but also distinct features of their organisation and interconnection pattern. As a consequence, interparticle voids with different characteristics emerge giving rise to specific mesoporous properties of the studied samples. The SBET value is 41 m2/g for the sample synthesized in water/glycerol/cyclohexane, reaches 108 m2/g for the sample obtained in water/glycerol/ethanol whereas the corresponded Vp value increases from 0.24 ml/g to 0.41 ml/g respectively. The possibility to shape the micromorphology properties of layered double hydroxides can contribute in designing and obtaining well established nanoporous properties for these materials.

Original languageEnglish
Pages (from-to)150-155
Number of pages6
JournalMicroporous and Mesoporous Materials
Volume98
Issue number1-3
DOIs
Publication statusPublished - Jan 5 2007
Externally publishedYes

Keywords

  • Hydrotalcite
  • Layered double hydroxides
  • Mesoporous properties
  • Textural characteristics
  • Water-glycerol

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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