Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders

IMR OpenIR

	Effect of the NSC and RSC Co-precipitation Methods on Apparent Activation Energy of Pr2Zr2O7 Nanopowders
其他题名	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
发表期刊	CHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN	1001-4861
卷号	30 期号:4 页码:811-820
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.
关键词	NANO-POWDERS KINETICS PRECURSOR Pr2Zr2O7 nanoparticle NSC and RSC co-precipitation method micro-morphology synthesis dynamics apparent activation energy
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5113967
引用统计	被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157157
专题	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.