Journal Article

FZJ-2018-00789

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Chemical Vapor Deposition of Al 13 Fe 4 Highly Selective Catalytic Films for the Semi-Hydrogenation of Acetylene

Aviziotis, I. G. ; Duguet, T. ; Soussi, K. ; Heggen, M.FZJ* ; Lafont, M.-C. ; Morfin, F. ; Mishra, S. ; Daniele, S. ; Boudouvis, A. G. ; Vahlas, C. (Corresponding author)

2018
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi: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.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2018

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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