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Formation enthalpy of BaCe0.7Nd0.2In0.1O2.85

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arxiv 1212.0344 v1 pith:FE7ECR6T submitted 2012-12-03 cond-mat.mtrl-sci

Formation enthalpy of BaCe0.7Nd0.2In0.1O2.85

M. Yu. Matskevich , N. I. Matskevich , Th. Wolf , A. N. Bryzgalova , T. I. Chupakhina , O. I. Anyfrieva , I. V. Vyazovkin This is my paper
classification cond-mat.mtrl-sci
keywords bace0binaryestablishedformationoxideoxidesrespectthermodynamically
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this paper for the first time we synthesized the compound BaCe0.7Nd0.2In0.1O2.85 by solid-state reaction. The phase has orthorhombic structure (space group Pmcn). We also measured the standard formation enthalpies of BaCe0.7Nd0.2In0.1O2.85 by solution calorimetry in 1 M HCl with 0.1 M KI. We determined the stability of Nd(In)-doped barium cerate with respect to mixtures of binary oxides. On the basis of these data we established that above-mentioned mixed oxide is thermodynamically stable with respect to their decomposition into binary oxides at room temperatures. We also established that BaCe0.7Nd0.2In0.1O2.85 oxide is thermodynamically favoured than BaCe0.8Nd0.2O2.9.

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