Synthesis and Ionic Conductivity of NaZr2(AsO4)x(PO4)3 –x
- Authors: Pet’kov V.I.1, Shipilov A.S.1, Borovikova E.Y.2, Stenina I.A.3, Yaroslavtsev A.B.2,3
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Affiliations:
- Lobachevsky State University
- Moscow State University
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Issue: Vol 55, No 10 (2019)
- Pages: 1034-1038
- Section: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/191128
- DOI: https://doi.org/10.1134/S1023193519100070
- ID: 191128
Cite item
Abstract
Arsenate phosphates NaZr2(AsO4)x(PO4)3 –x are synthesized by the sol–gel method with subsequent annealing at 1123 K. Thus obtained specimens are investigated using X-ray diffraction analysis, IR and impedance spectroscopy. In the NaZr2(AsO4)x(PO4)3 –x system, continuous solid solution (0 ≤ x ≤ 3) with NaZr2(PO4)3 (NASICON) structure forms. According to the impedance spectroscopy data, an increase of the content of arsenic in the NaZr2(AsO4)x(PO4)3 –x system leads to an increase of the sodium-ionic conductivity; for NaZr2(AsO4)3, it reaches 8 × 10–5 S/cm at 773 K. At the same time, the activation energy of conductivity of this material (50 ± 1 kJ/mol) appears to be twice lower than the activation energy of conductivity of NaZr2(PO4)3 (100 ± 1 kJ/mol).
About the authors
V. I. Pet’kov
Lobachevsky State University
Author for correspondence.
Email: petkov@inbox.ru
Russian Federation, Nizhny Novgorod, 603950
A. S. Shipilov
Lobachevsky State University
Author for correspondence.
Email: as-shipilov@yandex.ru
Russian Federation, Nizhny Novgorod, 603950
E. Yu. Borovikova
Moscow State University
Email: as-shipilov@yandex.ru
Russian Federation, Moscow
I. A. Stenina
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: as-shipilov@yandex.ru
Russian Federation, Moscow, 119071
A. B. Yaroslavtsev
Moscow State University; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: as-shipilov@yandex.ru
Russian Federation, Moscow; Moscow, 119071