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Full-Text Articles in Chemistry
Effects Of Composition On Catalytic Activities Of Molybdenum Doped Platinum Nanoparticles, Aslihan Sümer
Effects Of Composition On Catalytic Activities Of Molybdenum Doped Platinum Nanoparticles, Aslihan Sümer
Turkish Journal of Chemistry
The physical and chemical properties of bimetallic nanoparticles can be optimized by tuning the particle composition. In this study, we identified CO adsorption and dissociation energetics on five Pt-Mo nanoparticles at different concentrations, the lowest energy Pt$_{7}$, Pt$_{6}$Mo, Pt$_{5}$Mo$_{2}$, Pt$_{4}$Mo$_{3}$, and Mo$_{7}$ clusters. We have shown that the CO adsorption and dissociation energies and preferred CO adsorption sites are largely dependent on the composition of the nanoparticles. As the Mo concentration increases, the strength of the C-O internal bond in the adsorption complex decreases, as indicated by a decrease in the C-O stretching frequency. Also, more Mo sites in the …
Ranolazine-Functionalized Cuo Nps: Efficient Homogeneous And Heterogeneouscatalysts For Reduction Of 4-Nitrophenol, Gul Naz Laghari Baloch, Sarfaraz Ahmed Mahesar, Sirajuddin Khan, Jan Nisar, Syed Tufail Hussain Sherazi
Ranolazine-Functionalized Cuo Nps: Efficient Homogeneous And Heterogeneouscatalysts For Reduction Of 4-Nitrophenol, Gul Naz Laghari Baloch, Sarfaraz Ahmed Mahesar, Sirajuddin Khan, Jan Nisar, Syed Tufail Hussain Sherazi
Turkish Journal of Chemistry
In the present study copper oxide nanoparticles (CuO NPs) were synthesized using a hydrothermal method with ranolazine as a shape-directing agent. Ranolazine-functionalized CuO NPs were characterized by various analytical techniques such as scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The SEM pattern confirmed the morphology of ranolazine-functionalized CuO NPs with well-defined rice-like structures. FTIR spectroscopy confirmed the interaction between CuO NPs and ranolazine. The XRD analysis indicated that the structure of ranolazine-functionalized CuO NPs was monoclinic crystalline and the size ranged between 9 and 18 nm with an average particle size of 12 nm. …