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
TL;DR
This study synthesized and characterized the thermodynamic stability of BaCe0.7Nd0.2In0.1O2.85, providing new insights into its formation enthalpy and stability compared to related compounds.
Contribution
First synthesis and thermodynamic analysis of BaCe0.7Nd0.2In0.1O2.85, including its formation enthalpy and stability relative to binary oxides.
Findings
BaCe0.7Nd0.2In0.1O2.85 has orthorhombic structure.
The compound is thermodynamically stable at room temperature.
It is more stable than BaCe0.8Nd0.2O2.9.
Abstract
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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Taxonomy
TopicsMagnetic and transport properties of perovskites and related materials · Intermetallics and Advanced Alloy Properties · Thermal Expansion and Ionic Conductivity