Nanofiber-structured SSC-GDC composite cathodes for a LSGM electrolyte based IT-SOFCs

Liquan Fan; Yuwei Wang; Zheng Jia; Yueping Xiong; Manuel E. Brito

doi:10.1016/j.ceramint.2015.01.104

Nanofiber-structured SSC-GDC composite cathodes for a LSGM electrolyte based IT-SOFCs

Liquan Fan
, Yuwei Wang
, Zheng Jia
, Yueping Xiong^*
, Manuel E. Brito

^*Corresponding author for this work

Qiqihar University
School of Chemistry and Chemical Engineering, Harbin Institute of Technology
University of Yamanashi

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

39 Scopus citations

Abstract

Nanofiber-structured Sm_0.5Sr_0.5CoO_3-δ-Gd_0.2Ce_0.8O_1.9 (SSC-GDC) composite cathodes prepared by infiltration of Gd_0.2Ce_0.8O_1.9 (GDC) precursor solution into a porous Sm_0.5Sr_0.5CoO_3-δ (SSC) nanofiber scaffold are investigated. The SSC-GDC composite cathode with the optimum infiltration load of GDC achieves interfacial polarization resistances of 1.609, 0.595, 0.209, 0.081 and 0.038 Ω cm² at 600, 650, 700, 750 and 800 °C, respectively. These polarization resistances are lower than those reported for comparable materials. Stable performance of the cathode is confirmed by testing at a constant current of 0.2 A/cm² for up to 100 h. Furthermore, the peak power density of a cell using the nanofiber-structured SSC-GDC cathode in combination with a 650-μm-thick La_0.8Sr_0.2Ga_0.8Mg_0.2O_3-δ electrolyte is found to be 0.134 W/cm² at 800 °C. All of these results make of the nanofiber-structured SSC-GDC composite cathodes a potential high-performance component for use in intermediate temperature solid oxide fuel cells.

Original language	English
Pages (from-to)	6583-6588
Number of pages	6
Journal	Ceramics International
Volume	41
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2015.01.104
State	Published - 1 Jun 2015
Externally published	Yes

Keywords

Composite cathode
Nanofiber
SOFC
SSC-GDC

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10.1016/j.ceramint.2015.01.104

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@article{366b3dfc5a5844b38e99d27b95f011d8,

title = "Nanofiber-structured SSC-GDC composite cathodes for a LSGM electrolyte based IT-SOFCs",

abstract = "Nanofiber-structured Sm0.5Sr0.5CoO3-δ-Gd0.2Ce0.8O1.9 (SSC-GDC) composite cathodes prepared by infiltration of Gd0.2Ce0.8O1.9 (GDC) precursor solution into a porous Sm0.5Sr0.5CoO3-δ (SSC) nanofiber scaffold are investigated. The SSC-GDC composite cathode with the optimum infiltration load of GDC achieves interfacial polarization resistances of 1.609, 0.595, 0.209, 0.081 and 0.038 Ω cm2 at 600, 650, 700, 750 and 800 °C, respectively. These polarization resistances are lower than those reported for comparable materials. Stable performance of the cathode is confirmed by testing at a constant current of 0.2 A/cm2 for up to 100 h. Furthermore, the peak power density of a cell using the nanofiber-structured SSC-GDC cathode in combination with a 650-μm-thick La0.8Sr0.2Ga0.8Mg0.2O3-δ electrolyte is found to be 0.134 W/cm2 at 800 °C. All of these results make of the nanofiber-structured SSC-GDC composite cathodes a potential high-performance component for use in intermediate temperature solid oxide fuel cells.",

keywords = "Composite cathode, Nanofiber, SOFC, SSC-GDC",

author = "Liquan Fan and Yuwei Wang and Zheng Jia and Yueping Xiong and Brito, \{Manuel E.\}",

year = "2015",

month = jun,

day = "1",

doi = "10.1016/j.ceramint.2015.01.104",

language = "英语",

volume = "41",

pages = "6583--6588",

journal = "Ceramics International",

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}

TY - JOUR

T1 - Nanofiber-structured SSC-GDC composite cathodes for a LSGM electrolyte based IT-SOFCs

AU - Fan, Liquan

AU - Wang, Yuwei

AU - Jia, Zheng

AU - Xiong, Yueping

AU - Brito, Manuel E.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Nanofiber-structured Sm0.5Sr0.5CoO3-δ-Gd0.2Ce0.8O1.9 (SSC-GDC) composite cathodes prepared by infiltration of Gd0.2Ce0.8O1.9 (GDC) precursor solution into a porous Sm0.5Sr0.5CoO3-δ (SSC) nanofiber scaffold are investigated. The SSC-GDC composite cathode with the optimum infiltration load of GDC achieves interfacial polarization resistances of 1.609, 0.595, 0.209, 0.081 and 0.038 Ω cm2 at 600, 650, 700, 750 and 800 °C, respectively. These polarization resistances are lower than those reported for comparable materials. Stable performance of the cathode is confirmed by testing at a constant current of 0.2 A/cm2 for up to 100 h. Furthermore, the peak power density of a cell using the nanofiber-structured SSC-GDC cathode in combination with a 650-μm-thick La0.8Sr0.2Ga0.8Mg0.2O3-δ electrolyte is found to be 0.134 W/cm2 at 800 °C. All of these results make of the nanofiber-structured SSC-GDC composite cathodes a potential high-performance component for use in intermediate temperature solid oxide fuel cells.

AB - Nanofiber-structured Sm0.5Sr0.5CoO3-δ-Gd0.2Ce0.8O1.9 (SSC-GDC) composite cathodes prepared by infiltration of Gd0.2Ce0.8O1.9 (GDC) precursor solution into a porous Sm0.5Sr0.5CoO3-δ (SSC) nanofiber scaffold are investigated. The SSC-GDC composite cathode with the optimum infiltration load of GDC achieves interfacial polarization resistances of 1.609, 0.595, 0.209, 0.081 and 0.038 Ω cm2 at 600, 650, 700, 750 and 800 °C, respectively. These polarization resistances are lower than those reported for comparable materials. Stable performance of the cathode is confirmed by testing at a constant current of 0.2 A/cm2 for up to 100 h. Furthermore, the peak power density of a cell using the nanofiber-structured SSC-GDC cathode in combination with a 650-μm-thick La0.8Sr0.2Ga0.8Mg0.2O3-δ electrolyte is found to be 0.134 W/cm2 at 800 °C. All of these results make of the nanofiber-structured SSC-GDC composite cathodes a potential high-performance component for use in intermediate temperature solid oxide fuel cells.

KW - Composite cathode

KW - Nanofiber

KW - SOFC

KW - SSC-GDC

UR - https://www.scopus.com/pages/publications/84925347975

U2 - 10.1016/j.ceramint.2015.01.104

DO - 10.1016/j.ceramint.2015.01.104

M3 - 文章

AN - SCOPUS:84925347975

SN - 0272-8842

VL - 41

SP - 6583

EP - 6588

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Nanofiber-structured SSC-GDC composite cathodes for a LSGM electrolyte based IT-SOFCs

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Keywords

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