Bimetallic promotion of alcohol production in CO hydrogenation and olefin hydroformylation on RhFe, PtFe, PdFe, and IrFe cluster-derived catalysts

Journal Article · Sat Dec 01 00:00:00 EST 1990 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(90)90010-H· OSTI ID:5631669

Fukuoka, Atsushi; Kimura, Takuma; Ichikawa, Masaru ^[1]; Kosugi, Nobuhiro; Kuroda, Haruo; Minai, Yoshitaka; Sakai, Yoichi; Tominaga, Tominaga ^[2]

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1. Hokkaido Univ., Sapporo (Japan)
2. Univ. of Tokyo (Japan)

Iron-containing bimetallic catalysts were prepared from carbonyl clusters as precursors deposited on SiO{sub 2}. FeRh{sub 4} and Fe{sub 2}Rh{sub 4} cluster-derived catalysts showed high activity and selectivity for formation of ethanol and methanol in CO hydrogenation. Fe{sub 3}Pt{sub 3}, Fe{sub 6}Pd{sub 6}, and FeIr{sub 4} cluster catalysts gave methanol in high selectivity, while Fe-rich Fe{sub 4}Pt and Fe{sub 4}Pd were not selective catalysts. The RhFe cluster catalysts showed improved activity in hydroformylation of olefins; C{sub 4-}alcohols were substantially obtained from C{sub 3}H{sub 6} + CO + H{sub 2}. Moessbauer and EXAFS studies on the Fe{sub 2}Rh{sub 4}/SiO{sub 2} catalyst show that highly dispersed RhFe bimetallic particles are located on the SiO{sub 2} surface, where Fe atoms exist preferentially in the state of Fe{sup 3+} even after H{sub 2} reduction. FTIR spectra of CO chemisorbed on Fe{sub 2}Rh-Fe{sup 3+} sites. Bimetallic promotion of alcohol production in CO hydrogenation and olefin hydroformylation is proposed to originate from the two-site interaction of Rh-Fe{sup 3+} (or Pt-Fe{sup 3+}, Pd-Fe{sup 3+}, Ir-Fe{sup 3+}) sites with CO enhance migratory CO insertion.

• OSTI ID: 5631669
• Journal Information: Journal of Catalysis; (USA), Vol. 126:2; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
10 SYNTHETIC FUELS
ALCOHOLS
SYNTHESIS
ALKENES
ACYLATION
CARBON MONOXIDE
METHANATION
IRIDIUM
CATALYTIC EFFECTS
IRON
PALLADIUM
RHODIUM
BIMETALS
CARBONYLS
CATALYST SUPPORTS
CATALYSTS
CHEMICAL PREPARATION
CHEMISORPTION
ETHANOL
FORMYL RADICALS
FOURIER TRANSFORMATION
HYDROGENATION
INFRARED SPECTRA
INTERMETALLIC COMPOUNDS
METHANOL
MOESSBAUER EFFECT
SILICON OXIDES
SPECTROSCOPY
SURFACE PROPERTIES
X-RAY SPECTROSCOPY
ACYL RADICALS
ALLOYS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
HYDROXY COMPOUNDS
INTEGRAL TRANSFORMATIONS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RADICALS
SEPARATION PROCESSES
SILICON COMPOUNDS
SORPTION
SPECTRA
TRANSFORMATIONS
TRANSITION ELEMENTS
010408* - Coal
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& Peat- C1 Processes- (1987-)
100200 - Synthetic Fuels- Production- (1990-)