| Optimization of the synthesis conditions of CeO2-MgO nanopowder prepared by co-precipitation method |
| Paper ID : 2529-UFGNSM13-FULL |
| Authors: |
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fateme ghafuri najafabadi *1, Rasoul Sarraf-Mamoory2 1Ceramic Group, Materials Department, Engineering Faculty, Tarbiat Modares University, Jalal Al Ahmad Ave., 2Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, P.O.Box: 14115-111, Tehran, Iran |
| Abstract: |
| In this study, CeO2-MgO nanopowder was synthesized via co-precipitation method using cerium (III) nitrate hexahydrate and magnesium nitrate hexahydrate as precursors, and aqueous ammonia solution as a precipitating agent. The Taguchi experimental design has been used to optimize the critical parameters to achieve a smaller particle size of CeO2-MgO nanopowder. The studied parameters were pH, temperature, and concentration of soluble elements. The prepared samples were characterized by X-ray Diffraction (XRD), and Scanning electron microscopy (SEM). X-ray diffraction revealed that any combined phases were observed, and MgO and CeO2 phases were formed separately. The determined optimum operating conditions were a pH value of 11, temperature of 5 ℃ and concentration of 0.1 M. Under these optimal conditions, minimum particle size of 30 nm has been obtained. |
| Keywords: |
| nanopaticle, copricipitation, CeO2-MgO, Taguchi experimental design method |
| Status : Paper Accepted (Poster Presentation) |
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