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Interaction of La(0.8)Sr(0.2)MnO(3) interlayer with Gd(0.1)Ce(0.9)O(1.95) electrolyte membrane and Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-delta) cathode in low-temperature solid oxide fuel cells
Yang, Min1,2; Zhang, Min1,2; Yan, Aiyu1,2; Yue, Mangling1,2; Hou, Zhifang1; Dong, Yonglai1; Cheng, Mojie1
KeywordSolid Oxide Fuel Cells Interfacial Modification Inter-diffusion Impedance Spectroscopy Open-circuit Voltage
Source PublicationJOURNAL OF POWER SOURCES
2008-12-01
DOI10.1016/j.jpowsour.2008.07.054
Volume185Issue:2Pages:784-789
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectElectrochemistry ; Energy & Fuels
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS KeywordELECTRICAL-PROPERTIES ; COMPOSITE CATHODES ; PERFORMANCE ; INTERFACE ; SYSTEM ; CERIA ; CATHODE/ELECTROLYTE ; LA1-XSRXCO1-YFEYO3 ; DIFFUSION ; IMPEDANCE
AbstractLow-temperature solid oxide fuel cells with a La(0.8)Sr(0.2)MnO(3) (LSM) interlayer between the Ce(0.9)Gd(0.1)O(1.95) (GDC) electrolyte membrane (20 mu m) and the Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3) (BSCF)-GDC composite cathode are fabricated by sintering the BSCF-GDC composite cathodes at 900,950 and 1000 degrees C. The results of scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDX) fora model LSM/BSCF bi-layer pellet suggest that Ba, Co and Fe in BSCF as well as La and Mn in LSM have diffused into their counter sides. The X-ray diffraction (XRD) results on the simulated cells also indicate the incorporation of La into the CDC electrolyte membrane and the mutual diffusion of elements between the LSM layer and the BSCF layer. Analysis of the impedance spectra and interfacial reaction activation energies shows that LSM interlayer accelerates the oxygen reduction. Considering a good cell performance and the highest open-circuit voltages (OCVs) at 600-500 degrees C, the optimum sintering temperature of BSCF-GDC composite cathode onto LSM interlayer is 900 degrees C. (C) 2008 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000261748900027
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/141040
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yang, Min,Zhang, Min,Yan, Aiyu,et al. Interaction of La(0.8)Sr(0.2)MnO(3) interlayer with Gd(0.1)Ce(0.9)O(1.95) electrolyte membrane and Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-delta) cathode in low-temperature solid oxide fuel cells[J]. JOURNAL OF POWER SOURCES,2008,185(2):784-789.
APA Yang, Min.,Zhang, Min.,Yan, Aiyu.,Yue, Mangling.,Hou, Zhifang.,...&Cheng, Mojie.(2008).Interaction of La(0.8)Sr(0.2)MnO(3) interlayer with Gd(0.1)Ce(0.9)O(1.95) electrolyte membrane and Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-delta) cathode in low-temperature solid oxide fuel cells.JOURNAL OF POWER SOURCES,185(2),784-789.
MLA Yang, Min,et al."Interaction of La(0.8)Sr(0.2)MnO(3) interlayer with Gd(0.1)Ce(0.9)O(1.95) electrolyte membrane and Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-delta) cathode in low-temperature solid oxide fuel cells".JOURNAL OF POWER SOURCES 185.2(2008):784-789.
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