Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S002016852008004X

Ключевые слова: europium gallium germanate, solid-state synthesis, differential scanning calorimetry, heat capacity, structure, thermodynamic properties

Аннотация: The europium gallium germanate EuGaGe(2)O(7)has been prepared by solid-state reaction in air in the temperature range 1273-1473 K using a stoichiometric mixture of Eu2O3, Ga2O3, and GeO2. Its crystal structure has been determined by X-ray diffraction (sp. gr.P2(1)/c,a= 7.1693(7) angstrom,b= 6.57008(6) angstrom,c= 12.7699(1) angstrom, beta = 117.4522(5)degrees,V= 533.768(8) angstrom(3)). 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 EuGaGe2O7.

Журнал: INORGANIC MATERIALS

Выпуск журнала: Vol. 56, Is. 8

Номера страниц: 854-858

ISSN журнала: 00201685

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Denisova L.T. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Svobodnyi Pr 79, Krasnoyarsk 660041, Russia)
• Molokeev M.S. (Russian Acad Sci, Siberian Branch, Fed Res Ctr, Kirensky Inst Phys,Krasnoyarsk Sci Ctr, Akademgorodok 50-38, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Ul Akad Kirenskogo 28-12 B, Krasnoyarsk 660041, Russia)
• Irtyugo L.A. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Svobodnyi Pr 79, Krasnoyarsk 660041, Russia)
• Beletskii V.V. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Svobodnyi Pr 79, Krasnoyarsk 660041, Russia)
• Kargin Yu. F. (Russian Acad Sci, Baikov Inst Met & Mat Sci, Leninskii Pr 49, Moscow 119991, Russia)
• Denisov V.M. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Svobodnyi Pr 79, Krasnoyarsk 660041, Russia)

• Web of Science Core Collection
• Scopus