| Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders | |
| Alternative Title | Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr_2Zr_2O_7 Nanopowders |
| Han Feng; Ma WeiMin; Ma Lei; Sun Yang; Shi ShuJun; Li XiaoLong; Guan RenGuo | |
| 2014 | |
| Source Publication | CHINESE JOURNAL OF INORGANIC CHEMISTRY
 |
| ISSN | 1001-4861 |
| Volume | 30Issue:4Pages:811-820 |
| Abstract | 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. |
| Keyword | NANO-POWDERS KINETICS PRECURSOR Pr2Zr2O7 nanoparticle NSC and RSC co-precipitation method micro-morphology synthesis dynamics apparent activation energy |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:5113967 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/157157 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation 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. |
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