SrCeO3(s) and Sr2CeO4(s) were synthesized by citrate nitrate gel combustion and solid state methods, respectively. Heat capacity of SrCeO3(s) and Sr2CeO4(s) were measured in high pure oxygen atmosphere by differential scanning calorimetry in the temperature range of 300 870 K. Enthalpy, entropy and Gibbs energy functions were computed from the heat capacity data for SrCeO3 and Sr2CeO4(s) in the temperature range of 298 870 K and 298 600 K respectively. Thermal expansion measurements of these compounds were carried out in the temperature range of 298 1273 K by high temperature X-ray powder diffractometry. The average value of coefficient of volume expansion for SrCeO3 and Sr2CeO4(s) were calculated in the temperature range of 298 1273 K to be (10.79 +- 2.31) and (23.22 +- 5.19) *10-6 K-1, respectively.
Compounds
#
Formula
Name
1
CeO3Sr
strontium cerate (IV)
2
CeO4Sr2
cerium strontium oxide CeSr2O4
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
1
Molar heat capacity at constant pressure, J/K/mol ; Crystal
Temperature, K; Crystal
Pressure, kPa; Crystal
Crystal
Small sample (50 mg) DSC
13
POMD
1
Mass density, kg/m3 ; Crystal
Temperature, K; Crystal
Pressure, kPa; Crystal
Crystal
X-ray diffraction
11
POMD
2
Molar heat capacity at constant pressure, J/K/mol ; Crystal