High-Temperature Heat Capacity and Thermodynamic Properties of Bi4–xEuxTi3O12

IF 0.8 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-08-03 DOI:10.1134/S0036024425701146

G. V. Vasiliev, L. T. Denisova, V. A. Tikhanova, V. M. Denisov

引用次数: 0

Abstract

Stoichiometric mixtures of Bi₂O₃, Eu₂O₃, and TiO₂ substituted Bi\(_{{4 - x}}\)Eu_xTi₃O₁₂ (x = 0.4, 0.8, 1.2, 1.6, and 2.0) titanates are obtained by firing in air at temperatures of 1003–1323 K. Their crystal structure is determined via X-ray diffraction. Their high-temperature heat capacity is measured by means of differential scanning calorimetry. Thermodynamic properties of the titanates are calculated according to experimental data on C_p = f(T).

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Bi4-xEuxTi3O12的高温热容及热力学性质

通过在1003-1323 K的空气中烧制得到Bi2O3， Eu2O3和TiO2取代Bi \(_{{4 - x}}\) EuxTi3O12 （x = 0.4, 0.8, 1.2, 1.6和2.0）钛酸盐的化学计量混合物。它们的晶体结构是通过x射线衍射测定的。用差示扫描量热法测量了它们的高温热容。根据Cp = f(T)的实验数据计算了钛酸盐的热力学性质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.