Thermodynamic Investigation of Electrolytes of the Vanadium Redox Flow Battery (II): A Study on Low-Temperature Heat Capacities and Thermodynamic Properties of VOSO(4)center dot 2.63H(2)O(s)

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	Thermodynamic Investigation of Electrolytes of the Vanadium Redox Flow Battery (II): A Study on Low-Temperature Heat Capacities and Thermodynamic Properties of VOSO(4)center dot 2.63H(2)O(s)
	Y. Qin; J. G. Liu; Y. Y. Di; C. W. Yan; C. L. Zeng; J. Z. Yang
	2010
发表期刊	Journal of Chemical and Engineering Data
ISSN	0021-9568
卷号	55 期号:3 页码:1276-1279
摘要	The low-temperature heat capacities of VOSO(4)center dot 2.63H(2)O(s) which is a key component in the electrolyte of the vanadium redox flow battery were measured by adiabatic calorimetry in the temperature range of (78 to 388) K, and the experimental values of the molar heat capacities in the temperature regions of (78 to 372) K were fitted to a polynomial equation. The polynomial fitted values of the molar heat capacities and fundamental thermodynamic functions of the compound relative to the standard reference temperature of 298.15 K were calculated at intervals of 5 K. Additionally, a dehydration process occurred in the temperature range of (372 to 382) K, and the peak temperature, T(de) = (378.895 +/- 0.309) K, molar enthalpy of dehydration, Delta(de)H(m) = (116.446 +/- 0.148) kJ.mol(-1), and molar entropy of dehydration, Delta(de)S(m) = (307.329 +/- 0.141) J.K(-1).mol(-1), were determined in terms of the heat capacity curve.
部门归属	[yang, jia-zhen] liaoning univ, coll chem, shenyang 110036, peoples r china. [qin, ye; liu, jian-guo; yan, chuan-wei; zeng, chao-liu] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [di, you-ying] liaocheng univ, coll chem & chem engn, liaocheng 252059, peoples r china.;yang, jz (reprint author), liaoning univ, coll chem, shenyang 110036, peoples r china;jzyanglnu@yahoo.com.cn
关键词	Synthetic Sapphire Alpha-al2o3 Standard Reference Material Enthalpy Cell
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31414
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Qin,J. G. Liu,Y. Y. Di,et al. Thermodynamic Investigation of Electrolytes of the Vanadium Redox Flow Battery (II): A Study on Low-Temperature Heat Capacities and Thermodynamic Properties of VOSO(4)center dot 2.63H(2)O(s)[J]. Journal of Chemical and Engineering Data,2010,55(3):1276-1279.
APA	Y. Qin,J. G. Liu,Y. Y. Di,C. W. Yan,C. L. Zeng,&J. Z. Yang.(2010).Thermodynamic Investigation of Electrolytes of the Vanadium Redox Flow Battery (II): A Study on Low-Temperature Heat Capacities and Thermodynamic Properties of VOSO(4)center dot 2.63H(2)O(s).Journal of Chemical and Engineering Data,55(3),1276-1279.
MLA	Y. Qin,et al."Thermodynamic Investigation of Electrolytes of the Vanadium Redox Flow Battery (II): A Study on Low-Temperature Heat Capacities and Thermodynamic Properties of VOSO(4)center dot 2.63H(2)O(s)".Journal of Chemical and Engineering Data 55.3(2010):1276-1279.