Quasicrystalline Structures as Catalyst Precursors for Hydrogenation Reactions

• Published in: Catalysis letters Vol. 131; no. 1-2; pp. 59 - 69
• Main Authors: Ngoc, B. Phung, Geantet, C, Dalmon, J. A, Aouine, M, Bergeret, G, Delichere, P, Raffy, S, Marlin, S
• Format: Journal Article
• Language: English
• Published: Boston Boston : Springer US 01.08.2009; Springer US; Springer; Springer Nature B.V; Springer Verlag
• Subjects: Acetonitrile; Catalysis; Catalysts; Chemical Sciences; Chemistry; Chemistry and Materials Science; Electron microscopes; Environment and Society; Environmental Sciences; Exact sciences and technology; General and physical chemistry; Hydrogenation; Industrial Chemistry/Chemical Engineering; Microscopy; Organometallic Chemistry; Physical Chemistry; Quasicrystals; Scanning electron microscopy; Sodium hydroxide; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Transmission electron microscopy; X-ray diffraction; Raney nickel; Quasicrystal; Crotonaldehyde; Hydrogenation; Acetonitrile; Cobalt nickel alloys; Nitrile; Atmospheric pressure; Selectivity; Enaldehyde; Precursor; Solid; Cobalt alloy; Model reaction; Structure; Nickel alloy; Scanning electron microscopy; Composition; Catalytic reaction; Reference; Alloys; Butanal; Aldehyde; X ray diffraction; Heterogeneous catalysis; Transmission electron microscopy; Catalyst
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-009-0018-8

The quasicrystalline structures of alloys with nominal compositions of Al₇₂Ni₁₃.₄Co₁₄.₆ and Al₇₂.₃Ni₇.₈Co₁₉.₈ were characterized by X-ray diffraction, transmission electron microscopy and scanning electron microscopy. For catalytic application, the solids were leached with an alkaline NaOH solution and tested at 373 K with two model reactions under atmospheric pressure: hydrogenation of crotonaldehyde and acetonitrile. The catalytic activities of these leached alloys were compared to that of a Raney nickel reference catalyst. Catalysts prepared from quasicrystals showed high catalytic activities and high selectivities towards butanal (in crotonaldehyde hydrogenation) and ethylamine (in acetonitrile hydrogenation).