Palladium Nanoparticles on Magnetic Ionic Liquid Network Nanohydrogel Support, as an Efficient Nano-Catalyst for the Selective Aerobic Oxidation of Alcohols.
Paper ID : 1603-ICNS
Mahmoud Afrasi *
Institute for Advanced Studies in Basic Science
Nowadays it is still a great sustainable processes challenge to produce efficient, selective and easy magnetic recovery and recycling catalysts for oxidation of alcohols using air as the oxidant [1]. In this work, a new magnetic nanohydrogel comprising [DABCO-allyl][Br] ionic liquid, allyl alcohol, and N,N'-methylene-bis (acrylamide) has been used for stabilization of small and highly uniform palladium nanoparticles of 3-4 nm size (MXCPILNHG@Pd). It was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray photoelectron spectra (XPS). According to the optimization of cross-linking degree and ratio of DABCO-IL, MXCPILNHG-2@Pd found as a highly selective catalyst in oxidations of primary alcohols to the corresponding aldehydes in toluene and to acids in water. Furthermore, secondary alcohols were reacted efficiently to corresponding ketones in both toluene and water. The catalyst was magnetically recovered and recycled for several times in both toluene and water and reused catalysts were characterized by TEM and XPS.
“Magnetic, Nanohydrogel, Palladium, Oxidation, Alcohols”
Status : Abstract Accepted (Poster Presentation)