High-temperature heat capacity of the oxide compounds in the Bi2O3–V2O5 system

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1134/S0020168517030037

Ключевые слова: differential scanning calorimetry, heat capacity, solid-state synthesis, Calorimeters, Calorimetry, Specific heat, Transition metal compounds, Bismuth vanadates, Effect of temperature, High temperature, Oxide compounds, Polymorphic transformation, Stoichiometric mixtures, Bismuth compounds

Аннотация: The compounds BiVO4, Bi4V2O11, and Bi12V2O23 have been prepared by solid-state synthesis using stoichiometric mixtures of Bi2O3 and V2O5. The effect of temperature on the heat capacity of the synthesized bismuth vanadates has been studied by differential scanning calorimetry in the range 350–950 K. The Cp(T) curves have extrema at 531.7 K for BiVO4 and at 725.2 and 852.8 K for Bi4V2O11, which are due to polymorphic transformations of these compounds. © 2017, Pleiades Publishing, Ltd.

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Издание

Журнал: Inorganic Materials

Выпуск журнала: Vol. 53, Is. 3

Номера страниц: 300-306

Авторы

  • Denisova L.T. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)
  • Irtyugo L.A. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)
  • Kargin Y.F. (Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, Russian Federation)
  • Chumilina L.G. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)
  • Belousova N.V. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)
  • Denisov V.M. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)
  • Galiakhmetova N.A. (Institute of Nonferrous Metals and Materials Science, Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation)

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