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题名: Investigation on Thermodynamic Properties of a Water-Based Hematite Nanofluid
作者: Wei, Chengzhen1;  Nan, Zhaodong1;  Wang, Xiaoming1;  Tan, Zhicheng2
刊名: JOURNAL OF CHEMICAL AND ENGINEERING DATA
发表日期: 2010-07-01
DOI: 10.1021/je900883j
卷: 55, 期:7, 页:2524-2528
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A friendly environmental method was used to prepare a water-based hematite (alpha-Fe(2)O(3)) nanofluid through a simple biomolecule-assisted hydrothermal process. The molar heat capacities of the obtained nanofluids, base fluids, and hematite nanoparticles were measured by a high-precision automatic adiabatic calorimeter over the temperature range of (290 to 335) K, respectively. Polynomial equations of the molar heat capacities as a function of temperature were fitted by a least-squares method for the solid and nanofluid samples. Smoothed heat capacities and thermodynamic functions of the obtained samples, such as H(T/K) - H(298.15 K) and S(T/K) - S(298.15 K), were calculated on the basis of the fitted polynomials and the relationships of the thermodynamic functions. On the basis of the as-obtained molar heat capacities, the excess heat capacities of the nanofluids were calculated. These excess heat capacities reveal that the stable hematite nanofluids exhibit unique properties compared with the unstable one.
关键词[WOS]: THERMAL-CONDUCTIVITY ;  HEAT-CAPACITIES ;  NANOPARTICLES ;  ENHANCEMENT ;  SUSPENSIONS ;  MODEL
语种: 英语
WOS记录号: WOS:000279508100027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141760
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.Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Wei, Chengzhen,Nan, Zhaodong,Wang, Xiaoming,et al. Investigation on Thermodynamic Properties of a Water-Based Hematite Nanofluid[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2010,55(7):2524-2528.
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