Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders
文献类型：期刊论文
| 作者 | Han Feng; Ma WeiMin; Ma Lei; Sun Yang; Shi ShuJun; Li XiaoLong; Guan RenGuo |
| 刊名 | CHINESE JOURNAL OF INORGANIC CHEMISTRY
 |
| 出版日期 | 2014 |
| 卷号 | 30期号:4页码:811-820 |
| ISSN号 | 1001-4861 |
| 关键词 | NANO-POWDERS KINETICS PRECURSOR Pr2Zr2O7 nanoparticle NSC and RSC co-precipitation method micro-morphology synthesis dynamics apparent activation energy |
| 其他题名 | Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr_2Zr_2O_7 Nanopowders |
| 英文摘要 | The Pr2Zr2O7 nanoparticles were prepared by using NSC and RSC co-precipitation method with ammonia as precipitant agent. XRD, SEM, TEM and TG-DTA were applied to analysis the crystallization and morphology of the samples. Synthesis kinetics of the preparation process and dynamics of grain growth were studied, and the apparent activation energy was calculated respectively by using Doyle-Ozawa method and the Kissinger method. The results show that the samples topography near spherical, there are no agglomeration and the mean particle size is about 60nm. They were obtained under the conditions of titration rate, 2 mL.min(-1), initial concentration of resolution, 0.05 mol.L-1, system temperature 273K and calcination at 1 173 K for 2 h by RSC. The average apparent activation energy of the particles, obtained by NSC, were 71.2, 97.8 and 183.2 kJ.mol(-1) in each stage and the RSCs were 45.37, 84.34 and 152.16 kJ.mol(-1); the grain growth activation energy of them were 19.02 and 11.95 kJ.mol(-1) respectively, the latter decreases 7.07 kJ.mol(-1) than the former. Reverse co-precipitation preparation technology is better than that of positive co-precipitation method. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5113967 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/157156]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Han Feng,Ma WeiMin,Ma Lei,et al. Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2014,30(4):811-820. |
| APA | Han Feng.,Ma WeiMin.,Ma Lei.,Sun Yang.,Shi ShuJun.,...&Guan RenGuo.(2014).Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders.CHINESE JOURNAL OF INORGANIC CHEMISTRY,30(4),811-820. |
| MLA | Han Feng,et al."Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders".CHINESE JOURNAL OF INORGANIC CHEMISTRY 30.4(2014):811-820. |
入库方式： OAI收割
来源：金属研究所
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