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oai:ojs.www.eurjchem.com:article/441 2011-12-31T08:09:40Z eurjchem:ART driver

Synthesis and microstructure studies of nano-sized cerium-zinc phosphates Hanna, Adly Abdella Mousa, Sahar Mohamed Sherief, Marwa Adel Elkomy, Gehan Mahmoud Cerium phosphate Zinc phosphate Calcinations X-ray diffraction IR TEM A system of Ce(SO4)2.4H2O, Zn(CH3COO)2.2H2O and phosphoric acid was studied by the chemical reaction between the precursor materials. The cerium cations were replaced by zinc cations (x) in the range of x = 0.0-1.0. The obtained gels were dried and calcinated at 650 oC for 2 hrs. The effect of calcination on the produced phases was studied using X-ray diffraction (XRD) and infrared spectroscopy (IR). The thermal behaviors of only the dried samples were investigated employing differential scanning calorimetric (DSC) and thermogravimetric analysis (TGA). The transmission electron microscope (TEM) was used to investigate the morphology, crystallinity and particle size of both dried and calcined samples. The TEM results indicated that the crystallinity was improved by increasing the zinc contents. The importance of Zn, Ce phosphates return to their using as UV-shielding agents. Atlanta Publishing House LLC 2011-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/441 10.5155/eurjchem.2.4.503-508.441 European Journal of Chemistry; Vol. 2 No. 4 (2011): December 2011; 503-508 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/441/PDF