Abstract
In this paper, we report the solid-state synthesis, characterization, and physicochemical properties of Pb4–xMxNb2O9 (M = Cu, Ni; x = 0–1.0) solid solutions. We have identified the stability limits of the solid solutions. Using the tolerance factor and relative electronegativities of the A- and B-site atoms (A4B2O9), we have identified the stability fields of the perovskite-related solid solutions. The materials have been characterized by X-ray diffraction, and the particle size composition of the synthesized powders has been determined. Their electrical conductivity has been measured as a function of temperature. We have studied the key electrochemical characteristics of solid-contact ion-selective electrodes fabricated using the synthesized materials: linear range and slope of the principal electrode function, working pH range, and response time.
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Original Russian Text © A.L. Podkorytov, A.L. Timofeev, I.A. Shevyakova, V.O. Mal’tseva, S.A. Shtin, N.N. Zabolotskikh, 2018, published in Neorganicheskie Materialy, 2018, Vol. 54, No. 7, pp. 708–712.
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Podkorytov, A.L., Timofeev, A.L., Shevyakova, I.A. et al. Synthesis and Properties of Phases in the PbO–MO–Nb2O5 (M = Cu, Ni) Systems. Inorg Mater 54, 672–675 (2018). https://doi.org/10.1134/S0020168518070142
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DOI: https://doi.org/10.1134/S0020168518070142