Abstract
XRD phase analysis and thermal analysis are used to confirm the formation of a continuous series of solid solutions in which one cation is substituted for another in the systems Co(II) hydrogen maleate–Ni(II) hydrogen maleate; Fe(II) hydrogen maleate–Co(II) hydrogen maleate; and Fe(II) hydrogen maleate–Ni(II) hydrogen maleate. The unit cell volume of these solid solutions is shown to depend linearly on their composition. The linear character of changes in the initial temperatures of dehydration and thermal decomposition is established. Using the example of the first of these systems, it is shown that when heated, bimetallic nanoparticles embedded in the polymeric matrix of composites obtained via the thermal decomposition of solid solutions of hydrogen maleates undergo a second-order phase transition, resulting in decomposition of the solid solutions of metals at the Curie temperature.
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Original Russian Text © L.I. Yudanova, V.A. Logvinenko, L.A. Sheludyakova, A.V. Ishchenko, N.A. Rudina, 2017, published in Zhurnal Fizicheskoi Khimii, 2017, Vol. 91, No. 1, pp. 136–140.
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Yudanova, L.I., Logvinenko, V.A., Sheludyakova, L.A. et al. Thermal decomposition of solid solutions in systems of Fe(II), Co(II), and Ni(II) hydrogen maleates with the formation of bimetallic nanoparticles. Russ. J. Phys. Chem. 91, 136–140 (2017). https://doi.org/10.1134/S0036024417010320
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DOI: https://doi.org/10.1134/S0036024417010320