Enviar artigo por via de e-mail High-temperature heat capacity of stannates Er2Sn2O7 and Tm2Sn2O7
- Autores: Denisova L.T.1, Izotov A.D.2, Irtyugo L.A.1, Kargin Y.F.3, Beletskii V.V.1, Denisov V.M.1
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Afiliações:
- Institute of Nonferrous Metals and Materials Science
- Kurnakov Institute of General and Inorganic Chemistry
- Baikov Institute of Metallurgy and Materials Science
- Edição: Volume 472, Nº 1 (2017)
- Páginas: 10-12
- Seção: Physical Chemistry
- URL: https://journals.rcsi.science/0012-5016/article/view/153584
- DOI: https://doi.org/10.1134/S0012501617010031
- ID: 153584
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Resumo
Erbium stannate Er2Sn2O7 and thulium stannate Tm2Sn2O7 with a pyrochlore-type structure were produced by solid-phase synthesis by calcining stoichiometric mixtures of the respective oxides in air at 1473 K for 240 and 200 h. The high-temperature heat capacity of Er2Sn2O7 and Tm2Sn2O7 was studied by differential thermal calorimetry at 353–1000 K. From the experimental dependences CP = f(T), the thermodynamic functions (enthalpy change, entropy change, and reduced Gibbs free energy) of oxide compounds were calculated.
Sobre autores
L. Denisova
Institute of Nonferrous Metals and Materials Science
Autor responsável pela correspondência
Email: antluba@mail.ru
Rússia, pr. Svobodnyi 79, Krasnoyarsk, 660041
A. Izotov
Kurnakov Institute of General and Inorganic Chemistry
Email: antluba@mail.ru
Rússia, Leninskii pr. 31, Moscow, 119991
L. Irtyugo
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Rússia, pr. Svobodnyi 79, Krasnoyarsk, 660041
Yu. Kargin
Baikov Institute of Metallurgy and Materials Science
Email: antluba@mail.ru
Rússia, Leninskii pr. 49, Moscow, 119991
V. Beletskii
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Rússia, pr. Svobodnyi 79, Krasnoyarsk, 660041
V. Denisov
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Rússia, pr. Svobodnyi 79, Krasnoyarsk, 660041
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