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Magnetic Nanoparticles Entrapped in Siliceous Mesocellular Foam: A New Catalyst Support
Author(s) -
Lee Su Seong,
Riduan Siti Nurhanna,
Erathodiyil Nandanan,
Lim Jaehong,
Cheong Jian Liang,
Cha Junhoe,
Han Yu,
Ying Jackie Y.
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201102361
Subject(s) - catalysis , nanoclusters , homogeneous , nanoparticle , chemical engineering , materials science , magnetic nanoparticles , magnet , nanotechnology , chemistry , organic chemistry , physics , quantum mechanics , engineering , thermodynamics
γ‐Fe 2 O 3 nanoparticles were formed inside the cage‐like pores of mesocellular foam (MCF). These magnetic nanoparticles showed a uniform size distribution that could be easily controlled by the MCF pore size, as well as by the hydrocarbon chain length used for MCF surface modification. Throughout the entrapment process, the pore structure and surface area of the MCF remained intact. The resulting magnetic MCF facilitated the immobilization of biocatalysts, homogeneous catalysts, and nanoclusters. Moreover, the MCF allowed for facile catalyst recovery by using a simple magnet. The supported catalysts exhibited excellent catalytic efficiencies that were comparable to their homogeneous counterparts.