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The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach

V. Bojchuk et al · Vasyl Stefanyk Carpathian National University · 2019

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Author / responsible party
V. Bojchuk et al
Publisher
Vasyl Stefanyk Carpathian National University
Year
2019
ISSN
1729-4428
ISSN
1729-4428
Language
English

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<p>The phenomenological model of nikel-iron spinel nucleation with spinel structure based on the partial charge theory and analysis of hydrolysis and polycondensation processes at the interaction of <em>Fe<sup>3+</sup></em>-, <em>Fe<sup>2+</sup></em>- and <em>Ni<sup>2+</sup>-</em> hydroxocomplexes at different pH values of reaction medium was proposed. UV-vis optical spectroscopy was used for verification of the obtained results about the regularities of hydroxocomplexes formation. Crystal quasichemistry approach was applied for nucleation of nikel-iron spinel under the conditions of predomination of different defect types in <em>Ni<sub>x</sub>Fe<sub>3-x</sub>O<sub>4-δ</sub></em> (<em>d</em> <em>is</em> oxygen non-stoichiometry) spinel lattice. The analysis of changes in electrical conductivity and lattice parameter of defect nickel-iron spinel as a function of <em>Ni<sup>2+</sup></em> atomic concentration was done for different values of <em>d</em> parameter.</p>

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APA 7

al, V. B. E. (2019). The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach. https://doi.org/10.15330/pcss.20.2.156-164

MLA

al, V. Bojchuk et. "The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach." 2019. https://doi.org/10.15330/pcss.20.2.156-164.

Chicago

al, V. Bojchuk et. 2019. "The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach.". https://doi.org/10.15330/pcss.20.2.156-164.

Harvard

al, V. B. E. 2019, The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach, Vasyl Stefanyk Carpathian National University, available at: https://doi.org/10.15330/pcss.20.2.156-164 [Accessed 6 Aug. 2026].

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Title
The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach
Author / contributors
V. Bojchuk et al
Publisher
Vasyl Stefanyk Carpathian National University
Publication year
2019
ISSN
1729-4428
ISSN
1729-4428
Language
English

Subjects

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defect nickel-iron spinel; hydroxocomplex; lattice parameter; optical spectroscopy
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