Heat Capacity and the Thermodynamic Properties of Layered Perovskite-Like Oxides K2La2Ti3O10 and K2Nd2Ti3O10

The heat capacity of perovskite-like layered titanates K 2 La 2 Ti 3 O 10 and K 2 Nd 2 Ti 3 O 10 is studied via precision adiabatic vacuum calorimetry in the temperature range of 7–350 K, and by differential scanning calorimetry in the range 350–670 K. Standard thermodynamic functions are calculated...

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Published inRussian Journal of Physical Chemistry A Vol. 93; no. 3; pp. 407 - 416
Main Authors Sankovich, A. M., Markin, A. V., Smirnova, N. N., Zvereva, I. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2019
Springer Nature B.V
Subjects
Chemical Thermodynamics and Thermochemistry
Chemistry
Chemistry and Materials Science
Enthalpy
Gibbs free energy
Heat
Heat measurement
Perovskites
Physical Chemistry
Specific heat
Thermodynamic properties
Titanates
heat capacity
thermodynamic functions
adiabatic calorimetry
perovskite-like layered titanates
differential scanning calorimetry
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Summary:The heat capacity of perovskite-like layered titanates K 2 La 2 Ti 3 O 10 and K 2 Nd 2 Ti 3 O 10 is studied via precision adiabatic vacuum calorimetry in the temperature range of 7–350 K, and by differential scanning calorimetry in the range 350–670 K. Standard thermodynamic functions are calculated from experimental data on heat capacity in the temperature range of 9–670 K: enthalpy H ( T ) − H (9), entropy S ( T ) − S (9), and Gibbs function −[ G ( T ) − G (9)].
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024419030178