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题名: Preparation and low temperature heat capacity of the ZnO nano-powders
作者: Yi, QS;  Wu, XM;  Tan, ZC
关键词: nanometer ZnO ;  wurtzite phase ;  liquidoid precipitation method ;  low-temperature heat capacity
刊名: JOURNAL OF INORGANIC MATERIALS
发表日期: 2001-07-01
卷: 16, 期:4, 页:620-624
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Ceramics
研究领域[WOS]: Materials Science
英文摘要: The 18nm ZnO ultrafine powders with the wurtzite phase were prepared by using a new method of liquidoid precipitation, and characterized by XRD, TEM. The heat capacities of the powder in 78 similar to 370K were also measured with a high precision automatic adiabatic calorimeter and compared with that of the coarse crystal powders cited from literature. The relation between heat capacities and grain sizes of the nano ZnO powders was demonstrated in the view of energetics. The results obtained show that the distribution of the nano ZnO powders is narrow, and their purity is more then 99.9%. The polynomal equation fitted expressing the change of heat capacities with temperatures is C-p = 40.042 + 24.554X + 0.93033X(2) + 2.1649X(3) - 1.8389X(4).
关键词[WOS]: CALORIMETER
语种: 英语
WOS记录号: WOS:000170822900007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138981
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Coll Educ Hubei, Dept Chem, Wuhan 430060, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Yi, QS,Wu, XM,Tan, ZC. Preparation and low temperature heat capacity of the ZnO nano-powders[J]. JOURNAL OF INORGANIC MATERIALS,2001,16(4):620-624.
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