Solution enthalpies of barium cerates co-doped by rare-earth elements and indium
N.I. Matskevich (1), Th. Wolf (2), A.N. Semerikova (1), O.I. Anyfrieva, (1), M.Yu. Matskevich (1), I.V. Vyazovkin (1) ((1) Nikolaev Institute of, Inorganic Chemistry SB RAS, (2) Karlsruhe Institute of Technology, Institute, of Solid State Physics, Karlsruhe, Germany)
TL;DR
This study measures the dissolution enthalpies of co-doped barium cerates with rare-earth elements and indium, revealing a non-linear relationship with lanthanide radius, which advances understanding of their thermodynamic properties.
Contribution
It provides new calorimetric data on barium cerates co-doped with rare-earth elements and indium, highlighting the non-linear dependence of dissolution enthalpies on lanthanide radius.
Findings
Dissolution enthalpies were measured for specific co-doped barium cerates.
A non-linear relationship between enthalpy and lanthanide radius was identified.
Data enhances understanding of thermodynamic behavior of doped barium cerates.
Abstract
The dissolution enthalpies of BaCe0.7Ho0.2In0.1O2.85 and BaCe0.7Sm0.2In0.1O2.85 were measured by method of solution calorimetry in 1M hydrochloric acid with adding 0.1 M KI. The obtained data were compared with earlier measured data on dissolution enthalpies of BaCe0.7Nd0.2In0.1O2.85, BaCe0.7Gd0.2In0.1O2.85. The dependence of dissolution enthalpies from lanthanide radius was constructed. As was shown the relationship is not linear.
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Taxonomy
TopicsElectrical and Thermal Properties of Materials · Gas Sensing Nanomaterials and Sensors · Thermal and Kinetic Analysis