Bimetallic Pd-Zn silica-supported catalyst for CO hydrogenation. In situ DRIFT study

Authors
Arana, J Homs, N Sales, J de la Piscina, PR
Citation
J. Arana et al., Bimetallic Pd-Zn silica-supported catalyst for CO hydrogenation. In situ DRIFT study, J MOL CAT A, 164(1-2), 2000, pp. 297-300
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169 → ACNP
Volume
164
Issue
1-2
Year of publication
2000
Pages
297 - 300
Database
ISI
SICI code
1381-1169(200012)164:1-2<297:BPSCFC>2.0.ZU;2-O
Abstract
We report the behaviour of a silica-supported Pd-Zn catalyst in the hydroge nation of CO (total pressure=20 bar, T=548-598 K). Unusual high selectivity to higher hydrocarbons and higher oxygenated products (ethanol and acetald ehyde) was observed. An in-situ DRIFT study under reaction conditions, with analysis by mass spectrometry of products evolved, was carried out. The pr esence of surface acetate species is related to the production of acetaldeh yde, which is proposed to be the primary C-2-oxygenated product. (C) 2000 E lsevier Science B.V. All rights reserved.