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Superparamagnetic Core‐Shell‐Type Fe 3 O 4 /Ru Nanoparticles as Catalysts for the Selective Hydrogenation of an Unconstrained α,β‐Unsaturated Ketone
Author(s) -
Khan FarooqAhmad,
SüssFink Georg
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100869
Subject(s) - chemistry , selectivity , catalysis , superparamagnetism , nanoparticle , ketone , adsorption , ruthenium , particle size , coprecipitation , inorganic chemistry , bar (unit) , chemical engineering , organic chemistry , magnetization , quantum mechanics , meteorology , physics , magnetic field , engineering
Superparamagnetic core‐shell‐type Fe 3 O 4 /Ru nanoparticles (particle size ca. 15 nm) synthesized by co‐precipitation, adsorption and reduction methods were found to selectively hydrogenate the carbon‐oxygen double bond in trans ‐4‐phenyl‐3‐penten‐2‐one (conversion 100 %, selectivity > 90 %) with a catalytic turnover of 900 under mild reaction conditions (30 °C, 15 bar H 2 ). The finely dispersed catalyst can be separated from the reaction mixture by using an external magnet, recycled, and reused without significant loss of activity and selectivity.