Aviziotis, Ioannis G. and Duguet, Thomas
and Soussi, Khaled and Heggen, Marc and Lafont, Marie-Christine and Morfin, Franck
and Mishra, Shashank and Daniele, Stephane and Boudouvis, Andreas
and Vahlas, Constantin
Chemical Vapor Deposition of Al13 Fe4 Highly Selective Catalytic Films for the Semi-Hydrogenation of Acetylene.
(2017)
Physica Status Solidi (A): Applications and materials science. 1-8. ISSN 1862-6319
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(Document in English)
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: http://dx.doi.org/10.1002/pssa.201700692
Abstract
Catalytic properties of coatings containing the Al13Fe4 intermetallic phase are tested in the reaction of semi-hydrogenation of acetylene. The selectivity to ethylene is found as high as 74% close to the reported values for pure,unsupported Al13Fe4. The initial conversion of acetylene to ethylene is 84% and rapidly drops due to the catalytic formation of carbon-based by-products on secondary Al-Fe phases. Coatings are processed through sequential chemical vapor deposition (CVD) of aluminum (5 Torr, 180 °C) and iron(40 Torr, 140 °C) layers, followed by in situ annealing for 60 min at 575 °C.Deposition proceeds at high growth rate, resulting in 15 μm thick films. After annealing, coatings are composed of the Al13Fe4 phase, co-existing with minor secondary Al-Fe intermetallic phases. Overall, it is shown that films containing complex Al-Fe intermetallic phases can be processed by CVD, opening new routes to the engineering of pure, supported Al13Fe4 catalysts on 3D or porous supports.
Item Type: | Article |
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Additional Information: | Thanks to Wiley editor. The definitive version is available at http://onlinelibrary.wiley.com. The original PDF of the article can be found at http://onlinelibrary.wiley.com/doi/10.1002/pssa.201700692/pdf |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Other partners > National Technical University of Athens - NTUA (GREECE) Other partners > Total (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
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Deposited On: | 15 Dec 2017 10:09 |
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