Title :
Heterogeneous nanoparticle catalyst: PPI(G2) dendrimer grafted poly(styrene) beads stabilized with AuNPs for catalysis to knovenegal reaction
Author :
Murugan, Eagambaram ; Jebaranjitham, J. Nimita ; Govindaraju, S.
Author_Institution :
Dept. of Phys. Chem., Univ. of Madras, Chennai, India
Abstract :
Stable form of bead-shaped heterogeneous nanoparticle catalysts viz., polymer-supported poly(styrene) functionalized with poly(vinylbenzylchloride) beads grafted Poly(propyleneimine) dendrimer (PPI-G2) immobilized/stabilized gold nanoparticles (PS-PVBC-PPI(G2)- AuNPs) catalyst was synthesized from 2% cross-linked Poly(vinylbenzylchloride) beads, PPI-G2 and HAuCl4 as stabilizer and metal precursors. The formation of the catalyst was proved through characterization of UV-Visible, FT-IR, XRD, SEM, FESEM and EDAX techniques. The catalytic efficiency of this heterogeneous nanocatalyst viz., PS-PVBC-PPI(G2)-AuNPs was examined by conducting the knovenegal condensation reaction and the obtained results shows excellent activity. The stability and recycle/reusability of the catalyst was also inspected and observed to be good.
Keywords :
Fourier transform spectra; X-ray chemical analysis; X-ray diffraction; catalysis; catalysts; condensation; field emission electron microscopy; gold; infrared spectra; nanofabrication; nanoparticles; organometallic compounds; polymer blends; scanning electron microscopy; ultraviolet spectra; visible spectra; Au; EDAX; Fourier transform infrared spectra; Knovenegal condensation reaction; SEM; UV-vis spectra; X-ray diffraction; XRD; catalysis; energy dispersive X-ray analysis; field emission scanning electron microscopy; heterogeneous based organometallic catalysts; heterogeneous nanoparticle catalyst; poly(vinylbenzylchloride) beads grafted poly(propyleneimine) dendrimer; polymer-supported poly(styrene); stabilized gold nanoparticle catalyst; Industries; Nitrogen; Polymers; Recycling; Surface morphology; Symmetric matrices; X-ray scattering; Dendrimer grafting; Knovenegal reaction; gold nanoparticles; heterogeneous catalyst;
Conference_Titel :
Nanoscience, Engineering and Technology (ICONSET), 2011 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-0071-1
DOI :
10.1109/ICONSET.2011.6167966
