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Synthesis, Structure, and Thermophysical Properties of EuGaGe2O7.
- Source :
- Inorganic Materials; Aug2020, Vol. 56 Issue 8, p854-858, 5p
- Publication Year :
- 2020
-
Abstract
- The europium gallium germanate EuGaGe<subscript>2</subscript>O<subscript>7</subscript> has been prepared by solid-state reaction in air in the temperature range 1273–1473 K using a stoichiometric mixture of Eu<subscript>2</subscript>O<subscript>3</subscript>, Ga<subscript>2</subscript>O<subscript>3</subscript>, and GeO<subscript>2</subscript>. Its crystal structure has been determined by X-ray diffraction (sp. gr. P2<subscript>1</subscript>/c, a = 7.1693(7) Å, b = 6.57008(6) Å, c = 12.7699(1) Å, β = 117.4522(5)°, V = 533.768(8) Å<superscript>3</superscript>). The heat capacity of polycrystalline samples has been determined by differential scanning calorimetry in the temperature range 350–1053 K and the experimental data have been used to calculate the thermodynamic properties (enthalpy increment, entropy change, and reduced Gibbs energy change) of EuGaGe<subscript>2</subscript>O<subscript>7</subscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00201685
- Volume :
- 56
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Inorganic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 145405744
- Full Text :
- https://doi.org/10.1134/S002016852008004X