Synthesis and Investigation of Thermodynamic Properties of Cu 5 V 2 O 10

N. A. Galiakhmetova; V. M. Denisov; L. T. Denisova; Yu. F. Kargin; N. V. Belousova

doi:10.1134/S0036023619060056

Synthesis and Investigation of Thermodynamic Properties of Cu₅V₂O₁₀

Authors: Galiakhmetova N.A.¹, Denisov V.M.¹, Denisova L.T.¹, Kargin Y.F.², Belousova N.V.¹
Affiliations:
1. Institute of Non-ferrous Metals and Materials Science
2. Baikov Institute of Metallurgy and Materials Science
Issue: Vol 64, No 6 (2019)
Pages: 725-728
Section: Synthesis and Properties of Inorganic Compounds
URL: https://journals.rcsi.science/0036-0236/article/view/169378
DOI: https://doi.org/10.1134/S0036023619060056
ID: 169378

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Abstract

Cu₅V₂O₁₀ is prepared by solid-phase synthesis via sequential air calcination of a stoichiometric CuO-V₂O₅ mixture. Its high-temperature heat capacity is measured by differential scanning calorimetry. The thermodynamic properties (enthalpy and entropy changes and scaled Gibbs free energy) are calculated using the experimental dependence C_p =f(T). It is shown that specific heat capacity correlates with the composition of oxides in the CuO−V₂O₅ system.