TY  - JOUR
AU  - Aviziotis, Ioannis G.
AU  - Duguet, Thomas
AU  - Soussi, Khaled
AU  - Heggen, Marc
AU  - Lafont, Marie-Christine
AU  - Morfin, Franck
AU  - Mishra, Shashank
AU  - Daniele, Stephane
AU  - Boudouvis, Andreas G.
AU  - Vahlas, Constantin
TI  - Chemical Vapor Deposition of Al 13 Fe 4 Highly Selective Catalytic Films for the Semi-Hydrogenation of Acetylene
JO  - Physica status solidi / A
VL  - 215
IS  - 2
SN  - 1862-6300
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2018-00789
SP  - 1700692 -
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000423223700012
DO  - DOI:10.1002/pssa.201700692
UR  - https://juser.fz-juelich.de/record/842570
ER  -