Innovative Synthesis of Nickel Nanoparticles in Polystyrene Matrix with Enhanced Optical and Magnetic Properties

Stabilization of ruthenium on biochar-nickel magnetic nanoparticles as a heterogeneous, practical, selective, and reusable nanocatalyst for the Suzuki C–C coupling reaction in water

“…6, red line), which corresponded to the Miller indices (1 1 1), (2 0 0), and (2 2 0), respectively. 38–41 The normal XRD pattern of the biochar NPs (Fig. 6, green line) showed a peak batch in the region of 2 θ value at 30° ± 2, which corresponded to the Miller indices (0 0 2).…”

Structural, dielectric, and optical properties based on spinel ferrite (Mn0.5Fe1.5Mg0.5Ni0.5O4) nanoparticles filler reinforced PVA for optoelectronic, laser CUT-OFF filters and energy storage devices

“…Using the Lambert-Beer law, we can estimate the absorption coefficient according to equation (4) [49]…”

“…It shows that the values of indirect energy gaps decreased with increasing Mn 0.5 Fe 1.5 Mg 0.5 Ni 0.5 O 4 NPs in PVA matrix. The decrement in indirect energy gaps is due to the variation that happened at the polymer disorder level, which appears as a result of the polymer frame alterations caused by Mn 0.5 Fe 1.5 Mg 0.5 Ni 0.5 O 4 nanoparticles and also due to the increase of localized states in the bandgap; this helped to improve carrier-carrier interaction in the valence and conduction bands [49,52,53].…”

Optimization of Epoxidation Palm-Based Oleic Acid to Produce Polyols

“…The effect of NiNPs addition on magnetic properties of polystyrene (PS) was studied by El Komy and co-workers. 50 NiNPs were synthesized by reduction method and added to polystyrene as filler with different weight percentages (3, 5, 8 and 10 wt%) to form Ni-PS composite films. XRD measurements confirmed fcc structure of NiNPs embedded in semi crystalline PS matrix and showed that the average size of NiNPs increased with increasing Ni content from 3 to 8 wt% while decreased at 10 wt% due to dominant nucleation over aggregation process.…”