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| Process Optimization and Characterization of Micro-spherical CeO2 |
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Received:May 17, 2016
Revised:May 19, 2016
Accepted:May 24, 2016
Published Online:October 21, 2016
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| DOI：doi：10.3969/j.issn.1007-7545.2016.11.015 |
| KeyWord:micro-spherical CeO2; orthogonal experiment; specific surface area; optimization |
| Author | Institution |
| liuzhenpeng |
内蒙古科技大学 材料与冶金学院 |
| WANG Qing-chun |
内蒙古科技大学 材料与冶金学院 |
| CAI Chang-kun |
内蒙古科技大学 材料与冶金学院 |
| PENG Jun |
内蒙古科技大学 材料与冶金学院 |
| anshengli |
内蒙古科技大学 材料与冶金学院 |
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| Abstract: |
| CeO2 was prepared by novel hydrothermal method with glucose, acrylamide and cerium nitrate as raw material, and ammonia as precipitant. Effects of reaction time and temperature of hydrothermal reaction, and calcination temperature on specific surface area and morphology of CeO2 were analyzed. The products were characterized by XRD, SEM and BET. The results show that temperature of hydrothermal reaction is the most important factor determining specific surface area. The closer to sphere shape is, the larger its specific surface area is. The optimum preparation conditions include calcination temperature of 400 ℃, hydrothermal reaction temperature of 180 ℃, and reaction time of 48 h. |
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