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

Vázquez, Mercedes and Moore, David and He, Xiaoyun and Ben Azouz, Aymen and Nesterenko, Ekaterina and Nesterenko, Pavel and Brabazon, Dermot (2014) Focussed ion beam serial sectioning and imaging of monolithic materials for 3D reconstruction and morphological parameter evaluation. Analyst, 139 . pp. 99-104. ISSN 1364-5528

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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 Type:Article (Published)
Refereed:Yes
Subjects:Physical Sciences > Analytical chemistry
DCU Faculties and Centres:Research Initiatives and Centres > Irish Separation Science Cluster (ISSC)
Publisher:Royal Society of Chemistry
Official URL:http://dx.doi.org/10.1039/C3AN01827J
Copyright Information:© 2014 RSC
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:20055
Deposited On:28 Jul 2014 13:23 by Shadi Karazi. Last Modified 14 Oct 2016 10:25

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