Affinity of YBaCo4O7+δ-based layered cobaltites with protonic conductors of cerate-zirconate family

Standard

Affinity of YBaCo₄O_7+δ-based layered cobaltites with protonic conductors of cerate-zirconate family. / Danilov, N. A.; Tarutin, A. P.; Lyagaeva, J. G.; Pikalova, E. Yu; Murashkina, A. A.; Medvedev, D. A.; Patrakeev, M. V.; Demin, A. K.

In: Ceramics International, Vol. 43, No. 17, 01.12.2017, p. 15418-15423.

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

Author

Danilov, N. A. ; Tarutin, A. P. ; Lyagaeva, J. G. ; Pikalova, E. Yu ; Murashkina, A. A. ; Medvedev, D. A. ; Patrakeev, M. V. ; Demin, A. K. / Affinity of YBaCo₄O_7+δ-based layered cobaltites with protonic conductors of cerate-zirconate family. In: Ceramics International. 2017 ; Vol. 43, No. 17. pp. 15418-15423.

BibTeX

@article{a04b1b1a9d524174a2265ad2b8eb436d,

title = "Affinity of YBaCo4O7+δ-based layered cobaltites with protonic conductors of cerate-zirconate family",

abstract = "This work highlights the possibility of the application of YBaCo4O7+δ-modified materials as cathodes for solid oxide fuel cells based on protonic electrolytes. To reach this goal, the basic YBaCo4O7+δ oxide material and its YBaCo3.5Zn0.5O7+δ (YBCZ) and YBaCo3.5Fe0.5O7+δ (YBCF) substituted members were successfully synthesized and their structural, thermal and electrochemical properties were evaluated for their suitability for application. It was found that the substitution of cobalt with zinc results in the structural stabilization of such “114” phases and the convergence of the thermal expansion coefficient with that of the selected BaCe0.5Zr0.3Dy0.2O3–δ (BCZD) electrolyte as well as superior electrochemical activity below 700 °C. The Ni-BCZD|BCZD|YBCZ cell yields relatively high power density (200 mW cm–2 at 600 °C) and exhibits low polarization resistance (0.51 Ω cm2 at 600 °C). This, combined with the low activation energy values found for electrode polarization conductivity of both symmetrical and fuel cells allow assuming that the Zn-substituted YBaCo4O7+δ material could be successfully used in electrochemical devices based on proton-conducting electrolytes.",

keywords = "BaCeO, BaZrO, Electrochemical behavior, Proton-conducting electrolytes, SOFCs, YBaCoO",

author = "Danilov, {N. A.} and Tarutin, {A. P.} and Lyagaeva, {J. G.} and Pikalova, {E. Yu} and Murashkina, {A. A.} and Medvedev, {D. A.} and Patrakeev, {M. V.} and Demin, {A. K.}",

year = "2017",

month = dec,

day = "1",

doi = "10.1016/j.ceramint.2017.08.083",

language = "English",

volume = "43",

pages = "15418--15423",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier",

number = "17",

}

RIS

TY - JOUR

T1 - Affinity of YBaCo4O7+δ-based layered cobaltites with protonic conductors of cerate-zirconate family

AU - Danilov, N. A.

AU - Tarutin, A. P.

AU - Lyagaeva, J. G.

AU - Pikalova, E. Yu

AU - Murashkina, A. A.

AU - Medvedev, D. A.

AU - Patrakeev, M. V.

AU - Demin, A. K.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - This work highlights the possibility of the application of YBaCo4O7+δ-modified materials as cathodes for solid oxide fuel cells based on protonic electrolytes. To reach this goal, the basic YBaCo4O7+δ oxide material and its YBaCo3.5Zn0.5O7+δ (YBCZ) and YBaCo3.5Fe0.5O7+δ (YBCF) substituted members were successfully synthesized and their structural, thermal and electrochemical properties were evaluated for their suitability for application. It was found that the substitution of cobalt with zinc results in the structural stabilization of such “114” phases and the convergence of the thermal expansion coefficient with that of the selected BaCe0.5Zr0.3Dy0.2O3–δ (BCZD) electrolyte as well as superior electrochemical activity below 700 °C. The Ni-BCZD|BCZD|YBCZ cell yields relatively high power density (200 mW cm–2 at 600 °C) and exhibits low polarization resistance (0.51 Ω cm2 at 600 °C). This, combined with the low activation energy values found for electrode polarization conductivity of both symmetrical and fuel cells allow assuming that the Zn-substituted YBaCo4O7+δ material could be successfully used in electrochemical devices based on proton-conducting electrolytes.

AB - This work highlights the possibility of the application of YBaCo4O7+δ-modified materials as cathodes for solid oxide fuel cells based on protonic electrolytes. To reach this goal, the basic YBaCo4O7+δ oxide material and its YBaCo3.5Zn0.5O7+δ (YBCZ) and YBaCo3.5Fe0.5O7+δ (YBCF) substituted members were successfully synthesized and their structural, thermal and electrochemical properties were evaluated for their suitability for application. It was found that the substitution of cobalt with zinc results in the structural stabilization of such “114” phases and the convergence of the thermal expansion coefficient with that of the selected BaCe0.5Zr0.3Dy0.2O3–δ (BCZD) electrolyte as well as superior electrochemical activity below 700 °C. The Ni-BCZD|BCZD|YBCZ cell yields relatively high power density (200 mW cm–2 at 600 °C) and exhibits low polarization resistance (0.51 Ω cm2 at 600 °C). This, combined with the low activation energy values found for electrode polarization conductivity of both symmetrical and fuel cells allow assuming that the Zn-substituted YBaCo4O7+δ material could be successfully used in electrochemical devices based on proton-conducting electrolytes.

KW - BaCeO

KW - BaZrO

KW - Electrochemical behavior

KW - Proton-conducting electrolytes

KW - SOFCs

KW - YBaCoO

UR - http://www.scopus.com/inward/record.url?scp=85027558733&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2017.08.083

DO - 10.1016/j.ceramint.2017.08.083

M3 - Article

AN - SCOPUS:85027558733

VL - 43

SP - 15418

EP - 15423

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 17

ER -

ID: 9706646