Preparation of (MWCNTs)-COOH/CeO2Hybrid as an Efficient Catalyst for Claisen-Schmidt Condensation

Acid  functionalized  multi-walled  carbon  nanotubes/CeO2 (MWCNTs)-COOH/CeO2 hybrid  was fabricated by the reaction of functionalized (MWCNTs)-COOH and Ce(NO3)2.6H2O in acetic acid. Synthesis of CeO2 nanoparticles and their conjugation on the surface of (MWCNTs)-COOH have been confirmed by FT-IR, scanning electron microscopy (SEM), transmission electron microscopy (TEM),  X-ray  diffraction  (XRD),  and  Energy-dispersive  X-ray  spectroscopy  (EDX).  The modification  of  MWCNTs-COOH  with  CeO2  produced  an  efficient  catalyst  for  the  Claisen–Schmidt condensation, soa large variety of chalconeswere obtained in high yield using a catalytic amount of (MWCNTs)-COOH/CeO2 hybrid (5 mol%).