Thermodynamic Properties of Bismuth-Holmium-Cobalt Oxide

被引：0

作者：

Matskevich, N., I ^{[1
]}

Semerikova, A. N. ^{[1
]}

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

Matskevich, M. Yu ^{[1
]}

Anyfrieva, O., I ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2022年 / 96卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

bismuth oxide; cobalt oxide; heat capacity; enthalpy; TEMPERATURE;

D O I：

10.1134/S0036024422090242

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

DSC is used to determine the heat capacity of compound Bi12.5Ho1.5CoO22.3 in the 180-500 K range of temperatures. It is shown there are no phase transitions in this range. Standard enthalpy of formation Bi12.5Ho1.5COO22.3 is determined via dissolution calorimetry, based on the enthalpies of dissolution of Bi2O3 measured in 1 M hydrochloric acid, Bi12.5Ho1.5CoO22.3, and literature data: (Delta H-f(0)(Bi12.5Ho1.5COO22.3) = -5269.8 +/- 18.2 kJ/mol). The lattice enthalpy is calculated using the Born-Haber cycle: Delta H-lat(0)(Bi12.5Ho1.5CoO22.3) = -99 080 kJ/mol.

引用

页码：1856 / 1860

页数：5

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