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

Gabriela Carja; Yoshikazu Kameshima; Gabriela Ciobanu; Kiyoshi Okada

doi:10.1166/jnn.2010.1389

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 journal › Article › peer-review

2 Citations (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 language	English
Pages (from-to)	2880-2884
Number of pages	5
Journal	Journal of Nanoscience and Nanotechnology
Volume	10
Issue number	4
DOIs	https://doi.org/10.1166/jnn.2010.1389
Publication status	Published - Apr 1 2010
Externally published	Yes

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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10.1166/jnn.2010.1389

Cite this

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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.",

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AU - Kameshima, Yoshikazu

AU - Ciobanu, Gabriela

AU - Okada, Kiyoshi

PY - 2010/4/1

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N2 - 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.

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

Abstract

Keywords

ASJC Scopus subject areas

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