Electrochemical characteristics of Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Sm0.2Ce0.8O1.9 composite materials for low-temperature solid oxide fuel cell cathodes

Bo Wei; Zhe Lü; Xiqiang Huang; Shuyan Li; Gang Ai; Zhiguo Liu; Wenhui Su

doi:10.1016/j.matlet.2006.03.075

Electrochemical characteristics of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ-Sm_0.2Ce_0.8O_1.9 composite materials for low-temperature solid oxide fuel cell cathodes

Bo Wei^*
, Zhe Lü
, Xiqiang Huang
, Shuyan Li
, Gang Ai
, Zhiguo Liu
, Wenhui Su

^*Corresponding author for this work

School of Physics

Harbin Institute of Technology
Jilin University
CAS - International Center for Material Physics

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

41 Scopus citations

Abstract

In this paper, Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ-xSm_0.2Ce_0.8O_1.9 (BSCF-xSDC, x = 0-60 wt.%) composite cathodes were prepared by soft chemical methods, and then examined for potential applications in lower temperature solid oxide fuel cells. Both DC polarization and AC impedance spectroscopy measurements indicated that the addition of SDC electrolyte into BSCF remarkably improved the electrochemical properties. The optimum composition was found to be BSCF-30SDC, which exhibited 5.5 times higher polarization current density and 15.1% polarization resistance, compared with the pure-phase BSCF cathode at 550 °C.

Original language	English
Pages (from-to)	3642-3646
Number of pages	5
Journal	Materials Letters
Volume	60
Issue number	29-30
DOIs	https://doi.org/10.1016/j.matlet.2006.03.075
State	Published - Dec 2006

Keywords

Composite materials
Electrochemical performances
Perovskite
Solid oxide fuel cells

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10.1016/j.matlet.2006.03.075

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title = "Electrochemical characteristics of Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Sm0.2Ce0.8O1.9 composite materials for low-temperature solid oxide fuel cell cathodes",

abstract = "In this paper, Ba0.5Sr0.5Co0.8Fe0.2O3-δ-xSm0.2Ce0.8O1.9 (BSCF-xSDC, x = 0-60 wt.\%) composite cathodes were prepared by soft chemical methods, and then examined for potential applications in lower temperature solid oxide fuel cells. Both DC polarization and AC impedance spectroscopy measurements indicated that the addition of SDC electrolyte into BSCF remarkably improved the electrochemical properties. The optimum composition was found to be BSCF-30SDC, which exhibited 5.5 times higher polarization current density and 15.1\% polarization resistance, compared with the pure-phase BSCF cathode at 550 °C.",

keywords = "Composite materials, Electrochemical performances, Perovskite, Solid oxide fuel cells",

author = "Bo Wei and Zhe L{\"u} and Xiqiang Huang and Shuyan Li and Gang Ai and Zhiguo Liu and Wenhui Su",

year = "2006",

month = dec,

doi = "10.1016/j.matlet.2006.03.075",

language = "英语",

volume = "60",

pages = "3642--3646",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "29-30",

}

TY - JOUR

T1 - Electrochemical characteristics of Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Sm0.2Ce0.8O1.9 composite materials for low-temperature solid oxide fuel cell cathodes

AU - Wei, Bo

AU - Lü, Zhe

AU - Huang, Xiqiang

AU - Li, Shuyan

AU - Ai, Gang

AU - Liu, Zhiguo

AU - Su, Wenhui

PY - 2006/12

Y1 - 2006/12

N2 - In this paper, Ba0.5Sr0.5Co0.8Fe0.2O3-δ-xSm0.2Ce0.8O1.9 (BSCF-xSDC, x = 0-60 wt.%) composite cathodes were prepared by soft chemical methods, and then examined for potential applications in lower temperature solid oxide fuel cells. Both DC polarization and AC impedance spectroscopy measurements indicated that the addition of SDC electrolyte into BSCF remarkably improved the electrochemical properties. The optimum composition was found to be BSCF-30SDC, which exhibited 5.5 times higher polarization current density and 15.1% polarization resistance, compared with the pure-phase BSCF cathode at 550 °C.

AB - In this paper, Ba0.5Sr0.5Co0.8Fe0.2O3-δ-xSm0.2Ce0.8O1.9 (BSCF-xSDC, x = 0-60 wt.%) composite cathodes were prepared by soft chemical methods, and then examined for potential applications in lower temperature solid oxide fuel cells. Both DC polarization and AC impedance spectroscopy measurements indicated that the addition of SDC electrolyte into BSCF remarkably improved the electrochemical properties. The optimum composition was found to be BSCF-30SDC, which exhibited 5.5 times higher polarization current density and 15.1% polarization resistance, compared with the pure-phase BSCF cathode at 550 °C.

KW - Composite materials

KW - Electrochemical performances

KW - Perovskite

KW - Solid oxide fuel cells

UR - https://www.scopus.com/pages/publications/33750366795

U2 - 10.1016/j.matlet.2006.03.075

DO - 10.1016/j.matlet.2006.03.075

M3 - 文章

AN - SCOPUS:33750366795

SN - 0167-577X

VL - 60

SP - 3642

EP - 3646

JO - Materials Letters

JF - Materials Letters

IS - 29-30

ER -

Electrochemical characteristics of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ-Sm_0.2Ce_0.8O_1.9 composite materials for low-temperature solid oxide fuel cell cathodes

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Keywords

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