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Issue 4, 2018
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On the kinetic decomposition voltage of ternary oxides

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Abstract

In a previous article the authors reported the kinetic unmixing and decomposition of the ternary oxide NiTiO3 by an externally applied voltage. It was found [J. Chun, et al., J. Appl. Phys., 117, 2015, 124504] that while kinetic unmixing occurred for all magnitudes of the applied voltage, kinetic decomposition occurred only above a certain threshold voltage Ukind. The experimentally determined value of Ukind, however, did not coincide with the thermodynamic expectation according to the definition by Gibbs (Image ID:c7cp06009b-t1.gif). In this work the kinetic decomposition voltage Ukind of a ternary oxide ABOν is theoretically derived and compared with the experimental results. It turns out that Ukind depends on the mobility ratio of the cations and agrees with observed results for the system of NiTiO3 within the error bounds.

Graphical abstract: On the kinetic decomposition voltage of ternary oxides

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Publication details

The article was received on 03 Sep 2017, accepted on 19 Dec 2017 and first published on 08 Jan 2018


Article type: Paper
DOI: 10.1039/C7CP06009B
Citation: Phys. Chem. Chem. Phys., 2018,20, 2396-2402
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    On the kinetic decomposition voltage of ternary oxides

    J. Chun, M. Martin and H. Yoo, Phys. Chem. Chem. Phys., 2018, 20, 2396
    DOI: 10.1039/C7CP06009B

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