Magnetically separable base catalysts: Heterogeneous catalysis vs. quasi-homogeneous catalysis

Raed Abu-Reziq, Howard Alper*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


The synthesis of magnetically separable quasi-homogeneous base catalyst and heterogeneous base catalyst is described. The quasi-homogeneous catalyst is achieved by supporting silane monomers functionalized with different amine groups directly on the surface of magnetite nanoparticles. The heterogeneous catalyst is prepared via a sol-gel process in which silane monomers containing different amine groups are copolymerized with tetraethoxysilane in the presence of magnetite nanoparticles functionalized with ionic liquid moieties. The reactivity of the quasi-homogeneous and the heterogeneous base catalysts is compared in the nitroaldol condensation.

Original languageAmerican English
Pages (from-to)260-276
Number of pages17
JournalApplied Sciences (Switzerland)
Issue number2
StatePublished - 1 Jun 2012

Bibliographical note

Publisher Copyright:
© 2013 by the authors.


  • Base catalysis
  • Heterogeneous catalysis
  • Magnetic nanoparticles
  • Quasi-homogeneous catalysis
  • Sol-gel chemistry


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