DETERMINATION OF THERMODYNAMIC DATA OF LN1.85CE0.15CUO4 AND LN2CUO4 (LN=ND, SM, EU) BY THE EMF METHOD

被引：23

作者：

IDEMOTO, Y

OYAGI, I

FUEKI, K

机构：

[1] Department of Industrial Chemistry, Faculty of Science and Technology, Scinnce and Technology, Noda-shi, Chiba, 278

来源：

PHYSICA C | 1992年 / 195卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(92)90350-L

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The standard enthalpies of formation and standard entropies of Ln1.85Ce0.15CuO4 and Ln2CuO4 (Ln=Nd, Sm and Eu) were determined by the EMF method. It was found that Ln2CuO4 is more stable than CuO and the addition of CeO2 to Ln2CuO4 increases the chemical stability. The standard enthalpies of formation of Ln1.85Ce0.15CuO4 and Ln2CuO4 were calculated and compared with the data determined by calorimetry. Good agreement was found.

引用

页码：269 / 276

页数：8

共 27 条

[1] THERMODYNAMIC STABILITY OF Y2BAO4 BY CAF2-BASED EMF-MEASUREMENTS [J].

AZAD, AM ;

SREEDHARAN, OM .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1989, 8 (01) :67-68

[2] ON THE THERMODYNAMICS OF THE FORMATION OF YBA2CU3O7-X FROM TERNARY OXIDE PRECURSORS [J].

AZAD, AM ;

SREEDHARAN, OM .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1990, 3 (04) :159-162

[3] STABILITY LIMITS OF THE PEROVSKITE STRUCTURE IN THE Y-BA-CU-O SYSTEM [J].

BORMANN, R ;

NOLTING, J .

APPLIED PHYSICS LETTERS, 1989, 54 (21) :2148-2150

[4] THE OXYGEN POTENTIALS IN THE Y2O3-BAO-CUOX SYSTEM [J].

BOROWIEC, K ;

KOLBRECKA, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (11) :L1963-L1966

[5]

ELLIOTT JF, 1960, THERMOCHEMISTRY STEE, P1

[6] T-LOG PO2 DIAGRAM AND COPPER VALENCE OF ND1.85CE0.15CUO4-DELTA [J].

IDEMOTO, Y ;

FUEKI, K ;

SHINBO, T .

PHYSICA C, 1990, 166 (5-6) :513-517

[7]

IDEMOTO Y, UNPUB PHYSICA C

[8] Gibbs Energies of Formation of CuYO2 and Cu2Y2O5 and Phase Relations in the System Cu-Y-O [J].

Kale, G. M. ;

Jacob, K. T. .

CHEMISTRY OF MATERIALS, 1989, 1 (05) :515-519

[9] MEASUREMENTS ON GALVANIC CELLS INVOLVING SOLID ELECTROLYTES [J].

KIUKKOLA, K ;

WAGNER, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1957, 104 (06) :379-387

[10]

Lazarev V. B., 1990, Russian Journal of Inorganic Chemistry, V35, P1

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