CeO2 based materials doped with lanthanides for applications in intermediate temperature electrochemical devices

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CeO₂ based materials doped with lanthanides for applications in intermediate temperature electrochemical devices. / Pikalova, E. Yu; Murashkina, A. A.; Maragou, V. I.; Demin, A. K.; Strekalovsky, V. N.; Tsiakaras, P. E.

In: International Journal of Hydrogen Energy, Vol. 36, No. 10, 05.2011, p. 6175-6183.

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

Author

Pikalova, E. Yu ; Murashkina, A. A. ; Maragou, V. I. ; Demin, A. K. ; Strekalovsky, V. N. ; Tsiakaras, P. E. / CeO₂ based materials doped with lanthanides for applications in intermediate temperature electrochemical devices. In: International Journal of Hydrogen Energy. 2011 ; Vol. 36, No. 10. pp. 6175-6183.

BibTeX

@article{505e1e10f54f4c48977a5d77b4b6c25a,

title = "CeO2 based materials doped with lanthanides for applications in intermediate temperature electrochemical devices",

abstract = "The present work aims at the investigation of the influence of different dopants' ionic radius and concentration on the lattice parameters and the density of Ce1-xLnxO2-δ (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) solid solutions. Moreover, the temperature dependence of the linear expansion of Ce0.8Ln0.2O 2-δ ceramics is examined in the range of 300-1173 K and the respective thermal expansion coefficients are calculated. Finally, the total electrical conductivity of Ce1-xLnxO2-δ (x = 0.15-0.20) and multi-component Ce(1-x)Lnx/2Ln' x/2O2-δ (x = 0.20; Ln = Sm, La, Gd, Dy and Ln' = Dy, Nd, Er, Y) systems is studied in a wide range of temperatures in air atmosphere, as well as in a wide range of oxygen partial pressures at 1023 K and 1173 K. According to the experimental results of the present work, at the highest examined temperature of 1173 K and in air atmosphere, the maximum values of total electrical conductivity are observed in the cases of Ce 0.8Nd0.2O2-δ and Ce0.8Sm 0.2O2-δ.",

keywords = "Doped-ceria, Intermediate temperature solid oxide fuel cells",

author = "Pikalova, {E. Yu} and Murashkina, {A. A.} and Maragou, {V. I.} and Demin, {A. K.} and Strekalovsky, {V. N.} and Tsiakaras, {P. E.}",

note = "Funding Information: This work was supported by the Russian Fund of Basic Research (RFBR) , the Project No. 09-03-00181 . The authors thank Plaksin S.V. and Pankratov A.A. for performing XRD and SEM measurements.",

year = "2011",

month = may,

doi = "10.1016/j.ijhydene.2011.01.132",

language = "English",

volume = "36",

pages = "6175--6183",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

number = "10",

}

RIS

TY - JOUR

T1 - CeO2 based materials doped with lanthanides for applications in intermediate temperature electrochemical devices

AU - Pikalova, E. Yu

AU - Murashkina, A. A.

AU - Maragou, V. I.

AU - Demin, A. K.

AU - Strekalovsky, V. N.

AU - Tsiakaras, P. E.

N1 - Funding Information: This work was supported by the Russian Fund of Basic Research (RFBR) , the Project No. 09-03-00181 . The authors thank Plaksin S.V. and Pankratov A.A. for performing XRD and SEM measurements.

PY - 2011/5

Y1 - 2011/5

N2 - The present work aims at the investigation of the influence of different dopants' ionic radius and concentration on the lattice parameters and the density of Ce1-xLnxO2-δ (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) solid solutions. Moreover, the temperature dependence of the linear expansion of Ce0.8Ln0.2O 2-δ ceramics is examined in the range of 300-1173 K and the respective thermal expansion coefficients are calculated. Finally, the total electrical conductivity of Ce1-xLnxO2-δ (x = 0.15-0.20) and multi-component Ce(1-x)Lnx/2Ln' x/2O2-δ (x = 0.20; Ln = Sm, La, Gd, Dy and Ln' = Dy, Nd, Er, Y) systems is studied in a wide range of temperatures in air atmosphere, as well as in a wide range of oxygen partial pressures at 1023 K and 1173 K. According to the experimental results of the present work, at the highest examined temperature of 1173 K and in air atmosphere, the maximum values of total electrical conductivity are observed in the cases of Ce 0.8Nd0.2O2-δ and Ce0.8Sm 0.2O2-δ.

AB - The present work aims at the investigation of the influence of different dopants' ionic radius and concentration on the lattice parameters and the density of Ce1-xLnxO2-δ (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) solid solutions. Moreover, the temperature dependence of the linear expansion of Ce0.8Ln0.2O 2-δ ceramics is examined in the range of 300-1173 K and the respective thermal expansion coefficients are calculated. Finally, the total electrical conductivity of Ce1-xLnxO2-δ (x = 0.15-0.20) and multi-component Ce(1-x)Lnx/2Ln' x/2O2-δ (x = 0.20; Ln = Sm, La, Gd, Dy and Ln' = Dy, Nd, Er, Y) systems is studied in a wide range of temperatures in air atmosphere, as well as in a wide range of oxygen partial pressures at 1023 K and 1173 K. According to the experimental results of the present work, at the highest examined temperature of 1173 K and in air atmosphere, the maximum values of total electrical conductivity are observed in the cases of Ce 0.8Nd0.2O2-δ and Ce0.8Sm 0.2O2-δ.

KW - Doped-ceria

KW - Intermediate temperature solid oxide fuel cells

UR - http://www.scopus.com/inward/record.url?scp=79955481308&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2011.01.132

DO - 10.1016/j.ijhydene.2011.01.132

M3 - Article

AN - SCOPUS:79955481308

VL - 36

SP - 6175

EP - 6183

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 10

ER -

ID: 85232083