Abstract:
Nanocomposites based on poly (vinyl alcohol) (PVA) nanofibers filled with platinum (Pt) nanoparticles were prepared by electrospinning technique. PVA was used as both the stabilizer to prevent Pt nanoparticles agglomeration and the template for fiber formation. The diameter of platinum nanoparticles obtained was between 2 to 5 nm. The UV absorption peak at 260 nm corresponding to chloroplatinic acid hexahydrate, the platinum precursor, disappeared as soon as the substance was reduced to metallic Pt. Increasing the chloroplatinic acid hexahydrate, a precursor, content causes decreasing in as-spun fiber diameters. Morphology of the composite PVA/Pt nanofibers was investigated by both scanning and transmission electron microscopy. Platinum existence was confirmed by energy dispersive X-ray and X-ray diffraction techniques. Interaction between the as-formed Pt nanoparticles and the PVA matrix was studied by Fourier-transformed infrared spectroscopy.
