Synthesis and Thermodynamic Properties of Germanate Tb2Ge2O7

被引：4

作者：

Denisova, L. T. ^{[1
]}

Kargin, Yu F. ^{[2
]}

Irtyugo, L. A. ^{[1
]}

Belousova, N., V ^{[1
]}

Beletskii, V. V. ^{[1
]}

Denisov, V. M. ^{[1
]}

机构：

[1] Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Krasnoyarsk 660041, Russia

[2] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2019年 / 64卷 / 07期

关键词：

terbium germanate; differential scanning calorimetry; heat capacity; enthalpy and entropy changes; reduced Gibbs energy; TEMPERATURE HEAT-CAPACITY; RANGE; NDVO4; PRVO4;

D O I：

10.1134/S0036023619070052

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Germanate Tb2Ge2O7 has been prepared by solid-phase synthesis from a stoichiometric mixture of Tb2O3 and GeO2 by sequential firing in air at temperatures of 1273-1473 K. The effect of temperature on its molar heat capacity has been studied by differential scanning calorimetry. According to the obtained dependence C-p = f(T), the thermodynamic properties (enthalpy and entropy changes and the reduced Gibbs energy) have been calculated, and the specific heat value at 298 K has been estimated.

引用

页码：886 / 889

页数：4

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