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Inkjet Printing of GaPd 2 into Micro‐Channels for the Selective Hydrogenation of Acetylene
Author(s) -
Siebert Martin,
Zimmermann René R.,
Armbrüster Marc,
Dittmeyer Roland
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700288
Subject(s) - acetylene , catalysis , selectivity , ethylene , chemical engineering , materials science , nanotechnology , drop (telecommunication) , chemistry , organic chemistry , computer science , telecommunications , engineering
Drop‐on‐demand inkjet printing was used to apply nanoparticulate GaPd 2 catalyst as thin and uniform wall coatings for micro‐channels. Several inks were formulated and evaluated concerning their stability and printability. Three different printing approaches were investigated and the obtained layers were examined regarding their homogeneity, adhesion, and catalytic performance. After a specific catalyst activation step, semi‐hydrogenation of acetylene was conducted at 523 K and a feed gas composition of 0.5 vol % C 2 H 2 , 5 vol % H 2 , 50 vol % C 2 H 4 in He. Printed GaPd 2 /α‐Al 2 O 3 showed the best catalytic results and a selectivity of 76 % for the hydrogenation to ethylene with a high activity of 480 mol(C 2 H 2 ) mol(Pd) −1 h −1 .