WO3 thermodynamic properties at 80-1256 K revisited

Han Bing-yuan; Khoroshilov Andrey V.; Tyurin Alexander V.Baranchikov Alexander E.Razumov Mikhail I.Ivanova Olga S.Gavrichev Konstantin S.Ivanov Vladimir K.

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WO3 thermodynamic properties at 80-1256 K revisited

机译：WO3 thermodynamic properties at 80-1256 K revisited

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摘要

Thermodynamic properties (heat capacity C-p, entropy S degrees, enthalpy change Delta H degrees and reduced Gibbs energy Delta phi degrees) of crystalline WO3 in a temperature range of 80-1256 K were refined using two complementary calorimetric methods, namely differential scanning calorimetry and adiabatic vacuum calorimetry. Enthalpy changes during a number of successive phase transitions in WO3 were calculated from differential scanning calorimetry data in both heating and cooling regimes and compared to previously reported values. For the first time, enthalpy changes for the orthorhombic to monoclinic and monoclinic to tetragonal high-temperature phase transitions in WO3 were estimated.

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《Journal of thermal analysis and calorimetry》 |2020年第4期|1533-1543|共11页
作者
Han Bing-yuan; Khoroshilov Andrey V.; Tyurin Alexander V.Baranchikov Alexander E.Razumov Mikhail I.Ivanova Olga S.Gavrichev Konstantin S.Ivanov Vladimir K.;
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作者单位

Jiangsu Univ Technol, Changzhou 213001, Jiangsu, Peoples R China;

Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia;

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正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Tungsten oxide; WO3; Heat capacity; Phase transitions; Thermodynamic properties; DSC; Adiabatic calorimetry;

WO3 thermodynamic properties at 80-1256 K revisited

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