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Open AccessArticle

Demonstration of the Use of 3D X-ray Tomography to Compare the Uniformity of Catalyst Coatings in Open-Cell Foams

Laboratoire de Génie des Procédés Catalytiques, Institut de Chimie de Lyon, Université de Lyon, UMR 5285-CNRS-CPE Lyon-UCBL, 69100 Villeurbanne, France
MATEIS, INSA Lyon-Université Claude Bernard Lyon I-CNRS, Université de Lyon, 69100 Villeurbanne, France
Author to whom correspondence should be addressed.
ChemEngineering 2018, 2(4), 52;
Received: 2 October 2018 / Revised: 24 October 2018 / Accepted: 26 October 2018 / Published: 30 October 2018
PDF [2682 KB, uploaded 30 October 2018]


Coating open-cell foams by a catalytic layer is a necessary step to obtain structured catalytic foam reactors. The dip-coating method, consisting of immersing the foam in a suspension or in a sol-gel, is generally used to obtain the coating. The excess of liquid has to be evacuated from the foam to obtain a thin layer. Different methods to remove this excess of liquid have been investigated in the present work. The objective was to show that 3D X-ray tomography coupled to image analysis could be a tool to discriminate the methods by analysing the spatial localisation of the catalyst layer throughout the whole foam samples. A simple blowing by air in every direction seems to not be appropriate to obtain uniform coatings. View Full-Text
Keywords: coating; tomography; image analysis; foams; catalyst coating; tomography; image analysis; foams; catalyst

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zanota, M.-L.; Pallier, S.; Dousse, A.; Lachambre, J.; Meille, V. Demonstration of the Use of 3D X-ray Tomography to Compare the Uniformity of Catalyst Coatings in Open-Cell Foams. ChemEngineering 2018, 2, 52.

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