Symmetric half cell structures of highly epitaxial PrBaCo2O5+δ (PBCO)/Gd0.8Ce0.2.2O2:Y0.08Zr0.92O2/PrBaCo2O5+δ thin films were designed and fabricated on (001) LaAlO3. Microstructural studies indicate that the multilayer films have excellent single-crystal quality and epitaxial nature. The electrochemical impedance spectroscopy measurements reveal that the PBCO film electrodes have a polarization resistance as low as 0.109 Ω cm2 at 597 °C in air and an ultrafast surface exchange coefficient (0.006 cm/s at 598 °C) with low activation energy (0.77 eV). The low polarization resistance and rapid surface oxygen exchange kinetics suggest that the PBCO can be an excellent cathode material for intermediate-temperature solid oxide fuel cells.
REFERENCES
1.
A. J.
Jacobson
, Chem. Mater.
22
(3
), 660
–674
(2010
).2.
J.
Wan
, J. B.
Goodenough
, and J. H.
Zhu
, Solid State Ionics
178
(3–4
), 281
–286
(2007
).3.
Z. P.
Shao
and S. M.
Haile
, Nature (London)
431
(7005
), 170
–173
(2004
).4.
G.
Kim
, S.
Wang
, A. J.
Jacobson
, L.
Reimus
, P.
Brodersen
, and C. A.
Mims
, J. Mater. Chem.
17
(24
), 2500
–2505
(2007
).5.
A.
Tarancon
, J.
Pena-Martinez
, D.
Marrero-Lopez
, A.
Morata
, J. C.
Ruiz-Morales
, and P.
Nunez
, Solid State Ionics
179
(40
), 2372
–2378
(2008
).6.
A. A.
Taskin
, A. N.
Lavrov
, and Y.
Ando
, Appl. Phys. Lett.
86
(9
), 091910
(2005
).7.
D. J.
Chen
, R.
Ran
, K.
Zhang
, J.
Wang
, and Z. P.
Shao
, J. Power Sources
188
(1
), 96
–105
(2009
).8.
A.
Tarancon
, M.
Burriel
, J.
Santiso
, S. J.
Skinner
, and J. A.
Kilner
, J. Mater. Chem.
20
(19
), 3799
–3813
(2010
).9.
C. J.
Zhu
, X. M.
Liu
, C. S.
Yi
, D.
Yan
, and W. H.
Su
, J. Power Sources
185
(1
), 193
–196
(2008
).10.
M. B.
Choi
, S. Y.
Jeon
, J. S.
Lee
, H. J.
Hwang
, and S. J.
Song
, J. Power Sources
195
(4
), 1059
–1064
(2010
).11.
J.
Liu
, M.
Liu
, G.
Collins
, C. L.
Chen
, X. N.
Jiang
, W. Q.
Gong
, A. J.
Jacobson
, J.
He
, J. C.
Jiang
, and E. I.
Meletis
, Chem. Mater.
22
, 799
(2010
).12.
L. W.
Tai
and P. A.
Lessing
, J. Mater. Res.
7
(2
), 502
–510
(1992
).13.
Y. L.
Yang
, C. L.
Chen
, S. Y.
Chen
, C. W.
Chu
, and A. J.
Jacobson
, J. Electrochem. Soc.
147
(11
), 4001
–4007
(2000
).14.
F. S.
Baumann
, J.
Fleig
, H. U.
Habermeier
, and J.
Maier
, Solid State Ionics
177
(11–12
), 1071
–1081
(2006
).15.
T.
Kawada
, J.
Suzuki
, M.
Sase
, A.
Kaimai
, K.
Yashiro
, Y.
Nigara
, J.
Mizusaki
, K.
Kawamura
, and H.
Yugami
, J. Electrochem. Soc.
149
(7
), E252
–E259
(2002
).16.
J.
Jamnik
and J.
Maier
, Phys. Chem. Chem. Phys.
3
(9
), 1668
–1678
(2001
).17.
S. B.
Adler
, Solid State Ionics
111
, 125
(1998
);S. B.
Adler
, J. A.
Lane
, and B. C. H.
Steele
, J. Electrochem. Soc.
143
, 3554
(1996
).18.
B. A.
Boukamp
, Solid State Ionics
20
, 31
(1986
).19.
T.
Kawada
, K.
Masuda
, J.
Suzuki
, A.
Kaimai
, K.
Kawamura
, Y.
Nigara
, J.
Mizusaki
, H.
Yugami
, H.
Arashi
, N.
Sakai
, and H.
Yokokawa
, Solid State Ionics
121
, 271
(1999
).20.
S.
Kim
, S.
Wang
, X.
Chen
, Y. L.
Yang
, N.
Wu
, A.
Ignatiev
, A. J.
Jacobson
, and B.
Abeles
, J. Electrochem. Soc.
147
, 2398
(2000
).21.
D. J.
Chen
, R.
Ran
, K.
Zhang
, J.
Wang
, and Z. P.
Shao
, J. Power Sources
188
, 96
(2009
).22.
S. B.
Adler
, X. Y.
Chen
, and J. R.
Wilson
, J. Catal.
245
, 91
(2007
).23.
G.
Kim
, S.
Wang
, A. J.
Jacobson
, Z.
Yuan
, W.
Donner
, C. L.
Chen
, L.
Reimus
, P.
Brodersen
, and C. A.
Mims
, Appl. Phys. Lett.
88
(2
), 024103
(2006
).© 2012 American Institute of Physics.
2012
American Institute of Physics
You do not currently have access to this content.
