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Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy. / Sadykov, V. A.; Pikalova, E. Yu; Vinokurov, Z. S. et al.

In: Solid State Ionics, Vol. 333, 01.05.2019, p. 30-37.

Research output: Contribution to journal › Article › peer-review

Harvard

Sadykov, VA, Pikalova, EY, Vinokurov, ZS, Shmakov, AN, Eremeev, NF, Sadovskaya, EM, Lyagaeva, JG, Medvedev, DA & Belyaev, VD 2019, 'Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy', Solid State Ionics, vol. 333, pp. 30-37. https://doi.org/10.1016/j.ssi.2019.01.014

APA

Sadykov, V. A., Pikalova, E. Y., Vinokurov, Z. S., Shmakov, A. N., Eremeev, N. F., Sadovskaya, E. M., Lyagaeva, J. G., Medvedev, D. A., & Belyaev, V. D. (2019). Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy. Solid State Ionics, 333, 30-37. https://doi.org/10.1016/j.ssi.2019.01.014

Vancouver

Sadykov VA, Pikalova EY, Vinokurov ZS, Shmakov AN, Eremeev NF, Sadovskaya EM et al. Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy. Solid State Ionics. 2019 May 1;333:30-37. doi: 10.1016/j.ssi.2019.01.014

Author

Sadykov, V. A. ; Pikalova, E. Yu ; Vinokurov, Z. S. et al. / Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy. In: Solid State Ionics. 2019 ; Vol. 333. pp. 30-37.

BibTeX

@article{3b9d545f3389488d98c69fe83b1e5ade,
title = "Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy",
abstract = "Materials with a layered Ruddlesden–Popper structure having high oxygen mobility are promising for SOFC cathodes and oxygen separation membranes. This work aims at studying structural and transport features of Pr2-xCaxNiO4+δ (x = 0–0.6) oxides synthesized by a modified co-precipitation method and sintered at 1250 °C. The samples were characterized by in situ XRD using synchrotron radiation, TGA, oxygen heteroexchange with C18O2 and dc four-probe method. The phase transitions Fmmm ↔ I4/mmm were observed for all samples caused both by the temperature increase and oxygen loss. The electronic conductivity increases with Ca doping, while ionic conductivity varies in a complex manner remaining rather high (~10−3–10−1 S/cm), thus ensuring high values of ambipolar conductivity attractive for the practical application. The best ambipolar conductivity values at high temperatures were demonstrated for the undoped sample as well as for those with a low (x = 0.1) or high (x = 0.3; 0.5) dopant content. The relationships between structural, thermomechanical and transport properties are discussed.",
keywords = "in situ synchrotron XRD, Ionic conductivity, PrCaNiO, Thermal expansion coefficient, PR, ELECTROCHEMICAL PROPERTIES, SURFACE EXCHANGE, CRYSTAL-STRUCTURE, STABILITY, ELECTRICAL-CONDUCTIVITY, SYNCHROTRON-RADIATION, CATHODE MATERIALS, Pr2-xCaxNiO4, OXYGEN DIFFUSION, OXIDE FUEL-CELLS",
author = "Sadykov, {V. A.} and Pikalova, {E. Yu} and Vinokurov, {Z. S.} and Shmakov, {A. N.} and Eremeev, {N. F.} and Sadovskaya, {E. M.} and Lyagaeva, {J. G.} and Medvedev, {D. A.} and Belyaev, {V. D.}",
note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",
year = "2019",
month = may,
day = "1",
doi = "10.1016/j.ssi.2019.01.014",
language = "English",
volume = "333",
pages = "30--37",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Tailoring the structural, thermal and transport properties of Pr2NiO4+δ through Ca-doping strategy

AU - Sadykov, V. A.

AU - Pikalova, E. Yu

AU - Vinokurov, Z. S.

AU - Shmakov, A. N.

AU - Eremeev, N. F.

AU - Sadovskaya, E. M.

AU - Lyagaeva, J. G.

AU - Medvedev, D. A.

AU - Belyaev, V. D.

N1 - Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Materials with a layered Ruddlesden–Popper structure having high oxygen mobility are promising for SOFC cathodes and oxygen separation membranes. This work aims at studying structural and transport features of Pr2-xCaxNiO4+δ (x = 0–0.6) oxides synthesized by a modified co-precipitation method and sintered at 1250 °C. The samples were characterized by in situ XRD using synchrotron radiation, TGA, oxygen heteroexchange with C18O2 and dc four-probe method. The phase transitions Fmmm ↔ I4/mmm were observed for all samples caused both by the temperature increase and oxygen loss. The electronic conductivity increases with Ca doping, while ionic conductivity varies in a complex manner remaining rather high (~10−3–10−1 S/cm), thus ensuring high values of ambipolar conductivity attractive for the practical application. The best ambipolar conductivity values at high temperatures were demonstrated for the undoped sample as well as for those with a low (x = 0.1) or high (x = 0.3; 0.5) dopant content. The relationships between structural, thermomechanical and transport properties are discussed.

AB - Materials with a layered Ruddlesden–Popper structure having high oxygen mobility are promising for SOFC cathodes and oxygen separation membranes. This work aims at studying structural and transport features of Pr2-xCaxNiO4+δ (x = 0–0.6) oxides synthesized by a modified co-precipitation method and sintered at 1250 °C. The samples were characterized by in situ XRD using synchrotron radiation, TGA, oxygen heteroexchange with C18O2 and dc four-probe method. The phase transitions Fmmm ↔ I4/mmm were observed for all samples caused both by the temperature increase and oxygen loss. The electronic conductivity increases with Ca doping, while ionic conductivity varies in a complex manner remaining rather high (~10−3–10−1 S/cm), thus ensuring high values of ambipolar conductivity attractive for the practical application. The best ambipolar conductivity values at high temperatures were demonstrated for the undoped sample as well as for those with a low (x = 0.1) or high (x = 0.3; 0.5) dopant content. The relationships between structural, thermomechanical and transport properties are discussed.

KW - in situ synchrotron XRD

KW - Ionic conductivity

KW - PrCaNiO

KW - Thermal expansion coefficient

KW - PR

KW - ELECTROCHEMICAL PROPERTIES

KW - SURFACE EXCHANGE

KW - CRYSTAL-STRUCTURE

KW - STABILITY

KW - ELECTRICAL-CONDUCTIVITY

KW - SYNCHROTRON-RADIATION

KW - CATHODE MATERIALS

KW - Pr2-xCaxNiO4

KW - OXYGEN DIFFUSION

KW - OXIDE FUEL-CELLS

UR - http://www.scopus.com/inward/record.url?scp=85060218494&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2019.01.014

DO - 10.1016/j.ssi.2019.01.014

M3 - Article

AN - SCOPUS:85060218494

VL - 333

SP - 30

EP - 37

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

ER -

ID: 18295436