Role of the Outer Metal of Double Metal Cyanides on the Catalytic Efficiency in Styrene Oxidation

The catalytic efficiency of double metal cyanide (DMC) has been shown to be very effective in heterogeneous catalysis. The catalytic activity of the outer divalent cations (Mn, Co, Ni, and Cu) of a family of hexacyanocobaltates was examined in the oxidation reaction of styrene, as a model molecule,...

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Bibliographic Details
Published in:Catalysts 2019-11, Vol.9 (11), p.905
Main Authors: Molina-Maldonado, Paulina, Ruíz-Guerrero, Rosario, Hernández-Fuentes, Carlos
Format: Article
Language:English
Subjects:
Butyl hydroperoxide
Carbon
Catalysis
Catalysts
Catalytic activity
Catalytic oxidation
Chemical reactions
Copper
Copper converters
Divalent cations
Electronegativity
hexacyanocobaltates
Ligands
Manganese
Metals
Nickel
Nitrogen
Oxidation
oxidation process
Oxidizing agents
reaction mechanism
Selectivity
Styrenes
synthesis of organic molecules
tbhp
transition metal
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Summary:The catalytic efficiency of double metal cyanide (DMC) has been shown to be very effective in heterogeneous catalysis. The catalytic activity of the outer divalent cations (Mn, Co, Ni, and Cu) of a family of hexacyanocobaltates was examined in the oxidation reaction of styrene, as a model molecule, using tert Butyl Hydroperoxide (TBHP, Luperox®) as an oxidizing agent. The most electronegative outer cations showed the best conversions, with 95% for copper, followed by nickel with 85% conversion of the monomer at atmospheric pressure and temperature of 75 °C. The evidence showed that the catalytic activity and selectivity towards oxidized products are strongly linked to the accurate choice of the outer cation in the DMC together with the oxidizing agent.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal9110905