Thermodynamic studies on LnCoO3 (Ln = Eu, Gd, Tb) by solid-state electrochemical

被引：7

作者：

Patil, A ^{[1
]}

Dash, S ^{[1
]}

Parida, SC ^{[1
]}

Venugopal, V ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Fuel Chem, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 384卷 / 1-2期

关键词：

system; Ln-Co-O; ternary oxides; thermodynamic properties; Gibbs energy of formation; solid-state electrochemical;

D O I：

10.1016/j.jallcom.2004.04.090

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ternary oxides in the systems Ln-Co-O (where Ln = Eu, Gd, Tb) have been prepared by citrate-nitrate gel combustion method and characterized by X-ray powder diffraction method. Appropriate equilibrium phase mixtures were prepared, sintered in high purity argon gas and used for e.m.f. measurement using solid oxide galvanic cell with yttria-stabilized zirconia (YSZ) electrolyte. The e.m.f. values were measured as a function of temperature in the range of 1000-1200 K. The standard molar Gibbs energy of formation of the ternary oxides were calculated from the e.m.f. data. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：274 / 278

页数：5

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