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Low-temperature heat capacities, and thermodynamic properties of solid-solid phase change material bis(1-octylammonium) tetrachlorocuprate
Lu, D. F.1; Di, You-Ying1; Tan, Z. C.2; Dou, J. M.1
关键词Phase Change Material Adiabatic Calorimetry Low-temperature Heat Capacities Solid-solid Phase Transition Thermodynamic Function
刊名JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
2013
DOI10.1007/s10973-012-2238-1
111期:1页:213-218
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical ; Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]TETRACHLOROZINCATE ; TRANSITIONS ; STORAGE
英文摘要A new crystalline complex (C8H17NH3)(2)CuCl4(s) (abbreviated as C8Cu(s)) was synthesized by liquid phase reaction. Chemical analysis, elemental analysis, and X-ray crystallography were applied to characterize the composition and crystal structure of the complex. Low-temperature heat capacities of the complex were measured by a precision automatic adiabatic calorimeter over the temperatures ranging from 78 to 395 K, and two solid-solid phase changes appeared in the heat capacity curve. The temperatures, molar enthalpies and entropies of the two phase transitions of the complex were determined to be: T (trs, 1) = 309.4 +/- A 0.35 K, Delta(trs) H (m, 1) = 16.55 +/- A 0.41 kJ mol(-1), and Delta(trs) S (m, 1) = 53.49 +/- A 1.3 J K-1 mol(-1) for the first peak; T (trs, 2) = 338.5 +/- A 0.63 K, Delta(trs) H (m, 2) = 6.500 +/- A 0.10 kJ mol(-1), and Delta(trs) S (m, 2) = 19.20 +/- A 0.28 J K-1 mol(-1) for the second peak. Two polynomial equations of the heat capacities as a function of the temperature were fitted by least-square method. Smoothed heat capacities and thermodynamic functions of the complex relative to the standard reference temperature of 298.15 K were calculated based on the fitted polynomial equations.
语种英语
WOS记录号WOS:000313207400027
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137600
专题中国科学院大连化学物理研究所
作者单位1.Liaocheng Univ, Shandong Prov Key Lab Chem Energy Storage & Novel, Coll Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Chinese Acad Sci, Energy Storage & Thermochem Lab, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Lu, D. F.,Di, You-Ying,Tan, Z. C.,et al. Low-temperature heat capacities, and thermodynamic properties of solid-solid phase change material bis(1-octylammonium) tetrachlorocuprate[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2013,111(1):213-218.
APA Lu, D. F.,Di, You-Ying,Tan, Z. C.,&Dou, J. M..(2013).Low-temperature heat capacities, and thermodynamic properties of solid-solid phase change material bis(1-octylammonium) tetrachlorocuprate.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,111(1),213-218.
MLA Lu, D. F.,et al."Low-temperature heat capacities, and thermodynamic properties of solid-solid phase change material bis(1-octylammonium) tetrachlorocuprate".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 111.1(2013):213-218.
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