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Focussed ion beam serial sectioning and imaging of monolithic materials for 3D reconstruction and morphological parameter evaluation

Citation

Vazquez, M and Moore, D and He, X and Ben Azouz, A and Nesterenko, E and Nesterenko, P and Paull, B and Brabazon, D, Focussed ion beam serial sectioning and imaging of monolithic materials for 3D reconstruction and morphological parameter evaluation, Analyst, 139, (1) pp. 99-104. ISSN 0003-2654 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 The Royal Society of Chemistry

DOI: doi:10.1039/c3an01827j

Abstract

A new characterisation method, based on the utilisation of focussed ion beam-scanning electron microscopy (FIB-SEM), has been employed for the evaluation of morphological parameters in porous monolithic materials. Sample FIB serial sectioning, SEM imaging and image processing techniques were used to extract the pore boundaries and reconstruct the 3D porous structure of carbon and silica-based monoliths. Since silica is a non-conducting material, a commercial silica monolith modified with activated carbon was employed instead to minimise the charge build-up during FIB sectioning. This work therefore presents a novel methodology that can be successfully employed for 3D reconstruction of porous monolithic materials which are or can be made conductive through surface or bulk modification. Furthermore, the 3D reconstructions were used for calculation of the monolith macroporosity, which was in good agreement with the porosity values obtained by mercury intrusion porosimetry (MIP).

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Analytical Chemistry not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Nesterenko, P (Professor Pavel Nesterenko)
Author:Paull, B (Professor Brett Paull)
ID Code:86872
Year Published:2014
Web of Science® Times Cited:4
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2013-10-30
Last Modified:2017-10-27
Downloads:0

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