Methanol synthesis over binary copper-f block element intermetallic compounds

LnCu2 (Ln=La, Ce, Gd, Tm) binary copper-f block element intermetallic compounds were tested as catalysts for the production of methanol using greenhouse gases (CO2 and CH4) as feedstock. The best results were obtained with PrCu2 and LaCu2, which are more active for the production of methanol than a...

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Bibliographic Details
Published in:Catalysis communications 2016-09, Vol.84, p.103-107
Main Authors: Branco, J.B., Ferreira, A.C., Gonçalves, A.P., Soares, C.O.
Format: Article
Language:English
Subjects:
CH4
CO2
copper
f block elements
intermetallic compounds
Methanol
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Summary:LnCu2 (Ln=La, Ce, Gd, Tm) binary copper-f block element intermetallic compounds were tested as catalysts for the production of methanol using greenhouse gases (CO2 and CH4) as feedstock. The best results were obtained with PrCu2 and LaCu2, which are more active for the production of methanol than a commercial Cu based catalyst (Alfa Aesar, 45776-0500) using CO2+H2 (1:3) or CH4+CO2+H2 (1:1:3) in the feed composition. The selectivity is also very high (>80%), but the incorporation of CH4 to the feedstock has a negative effect on the catalyst's behavior. LnCu2 also present a remarkable long term stability for at least 50h on the gaseous stream. To our knowledge, the results herein described are among the best reported until now. [Display omitted] •Copper - f block element intermetallic compounds for the production of methanol•Use of greenhouse gases (CO2, CH4) as feedstock•Best results obtained over PrCu2 and LaCu2•Among the best reported until now
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2016.06.011