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HRTEM Image Filtration: Nanostructural Analysis of a Pillared Clay

Published online by Cambridge University Press:  01 January 2024

Christian Clinard ,
Tushar Mandalia ,
Denise Tchoubar  and
Faiza Bergaya
Christian Clinard
Affiliation:
Centre de Recherche sur la Matière Divisée, CNRS-Université d'Orléans, 1b, rue de La Férollerie, 45071, Orléans Cedex 2, France
Tushar Mandalia
Affiliation:
Centre de Recherche sur la Matière Divisée, CNRS-Université d'Orléans, 1b, rue de La Férollerie, 45071, Orléans Cedex 2, France
Denise Tchoubar
Affiliation:
CRT Plasma Laser, 14 rue d'Issoudun - B.P 6744, 45067 Orléans Cedex 2, France
Faiza Bergaya*
Affiliation:
Centre de Recherche sur la Matière Divisée, CNRS-Université d'Orléans, 1b, rue de La Férollerie, 45071, Orléans Cedex 2, France
*
*E-mail address of corresponding author: [email protected]
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Abstract

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Nanostructural analysis of pillared clay samples using high-resolution transmission electron microscopy has been developed. Montmorillonite samples were pillared using partially hydrolyzed Al and Fe solutions. Two samples, M01 and M05, corresponding to Fe/(Fe+Al) ratios of 0.1 and 0.5, respectively, were analyzed. The different steps of image filtration, resulting from filtration by ring-shaped masks, are illustrated and discussed from lattice imaging of sample M01. This procedure is used to show the heterogeneous distribution of the basal spacings in the different ordered domains. Domains of mesoporosity and distribution of the different Fe species are studied specifically in the sample M05. The quantitative HRTEM results are discussed and compared with X-ray diffraction patterns obtained from the same sample.

Keywords

Fe Pillared ClayHigh-resolution Transmission Electron MicroscopyImage AnalysisMesoporosity
Type
Research Article
Information
Clays and Clay Minerals , Volume 51 , Issue 4 , August 2003 , pp. 421 - 429
Copyright
Copyright © 2003, The Clay Minerals Society

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