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- W2185486546 abstract "Nanocrystalline Metal oxides are interesting area f or scientists due to their unique surface chemistry an d high surface area. Among the metal oxide nanomaterials, magnesium oxide (MgO) is an exceptionally important material and has been extensively used in,fire reta rdation ,catalysis, refractory materials,toxic waste remedi ation, antibacterial materials, paints, and superconductor products owning to its unique photonic, optical, electronic ,magnetic, mechanical and chemical properties. In the present work MgO nanocrystals were synthesis by co-precipitation method in which ammonia is used as co-precipitating agent were subsequently calcinated at 600°C in air for 4h rs and 6hrs to transform into MgO. X-ray diffraction (XRD) pattern revealed that synthesized Mg(OH) 2 nanocrystals are polycrystalline in nature with hexagonal structure, and after annealing at 600 o C it transforms to MgO nanocrystals with cubic structure. Fourier transform infrared spectro scopy (FTIR) of the as-synthesized Mg(OH)2 showed the OHantisymmetric stretching vibration at 3686cm-1, whi ch on annealing disappears completely indicating the Mg(OH)2 to MgO phase transformation. Transmission electron microscopy (TEM) images of MgO nanocrystals exhibited flakes-like structure. Optical band gap energy of M gO nanocrystals was estimated using UV-Vis diffused reflectance spectroscopy (DRS), and found to be 5.9 2eV respectively." @default.
- W2185486546 created "2016-06-24" @default.
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- W2185486546 date "2013-01-01" @default.
- W2185486546 modified "2023-09-27" @default.
- W2185486546 title "Preparation and Characterization of MgO Nanoparticles Preparation and Characterization of MgO Nanoparticles Preparation and Characterization of MgO Nanoparticles Preparation and Characterization of MgO Nanoparticles" @default.
- W2185486546 hasPublicationYear "2013" @default.
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