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- Title
Influence of Chemical Composition on the Catalytic Activity of Small Bimetallic FeRu Nanoparticles for Fischer-Tropsch Syntheses.
- Authors
Meffre, Anca; Iablokov, Viacheslav; Xiang, Yizhi; Barbosa, Roland; Fazzini, Pier; Kelsen, Vinciane; Kruse, Norbert; Chaudret, Bruno
- Abstract
FeRu nanoparticles were prepared according to an organometallic route using {Fe[N(Si(CH))]} and (η-1,5-cyclooctadiene)(η-1,3,5-cyclooctatriene) ruthenium(0) Ru(COD)(COT) precursors followed by their insertion into a mesoporous MCF-17 support host. The resulting nanoparticles had a uniform size of approximately 2 nm, with a relative Ru amount of up to 33 at.%. Steady-state Fischer-Tropsch catalysis at 6 bar total pressure (H/CO = 1:1) demonstrated light olefins production with a selectivity close to 50 % (ex. CO) for catalysts with low Ru content (5 at.%). The selectivity pattern changed to long chain-paraffin production with increasing Ru amounts. These catalysts were also more active than those containing few Ru. X-ray photoelectron spectroscopy showed under-parity Ru amounts to effectively cover the surface of Fe nanoparticles. The nanoparticle distribution inside the MFC-17 host was characterized by microtomia/transmission electron microscopy. Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
BIMETALLIC catalyst activity; FISCHER-Tropsch process; NANOPARTICLE synthesis; CHEMICAL precursors; X-ray photoelectron spectroscopy; MESOPOROUS materials
- Publication
Catalysis Letters, 2015, Vol 145, Issue 1, p373
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-014-1421-3