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A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs
Zhang, Min1,2; Yang, Min1,2; Hou, Zhifang1; Dong, Yonglai1; Cheng, Mojie1; Cheng MJ(程谟杰)
KeywordBi-layered Composite Cathode La0.8sr0.2mno3 La0.4ce0.6o1.8 Ysz Solid Oxide Fuel Cells
Source PublicationELECTROCHIMICA ACTA
2008-06-01
ISSN0013-4686
DOI10.1016/j.electacta.2008.01.095
Volume53Issue:15Pages:4998-5006
Indexed BySCI
SubtypeArticle
Department3
Funding Project302
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordOXIDE FUEL-CELLS ; YTTRIA-STABILIZED ZIRCONIA ; IMPEDANCE SPECTROSCOPY ; INTERMEDIATE-TEMPERATURE ; YSZ ELECTROLYTE ; AC-IMPEDANCE ; DOPED CERIA ; PERFORMANCE ; POLARIZATION ; INTERLAYER
AbstractA bi-layered composite cathode of La0.8Sr0.2MnO3 (LSM)-YSZ and LSM-La0.4Ce0.6O1.8 (LDC) was fabricated for anode-supported solid oxide fuel cells with a thin YSZ electrolyte film. The cell with the bi-layered composite cathode displayed better performance than the cell with the corresponding single-layered composite cathode of LSM-LDC or LSM-YSZ. At 650 degrees C, the cell with the bi-layered composite cathode gave a higher maximum power density than the cells with the single-layered LSM-LDC and LSM-YSZ composite cathodes, by 52% and 175%, respectively. The impedance spectra results show that the thin LSM-YSZ interlayer not only improves the cathode/electrolyte interface but also reduces the polarization resistance of the cathode. The activation energy for oxygen reduction on the bi-layered composite cathode is much smaller than that on LSM-YSZ composite cathode, and it is suggested that the special redox property of Ce4+/Ce3+ in LDC facilitates the oxygen reduction process on the bi-layered composite cathode. The cell with the bi-layered composite cathode operated quite stably during a 100 h run. (C) 2008 Elsevier Ltd. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000255706500007
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101205
Collection中国科学院大连化学物理研究所
Corresponding AuthorCheng MJ(程谟杰)
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
Zhang, Min,Yang, Min,Hou, Zhifang,et al. A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs[J]. ELECTROCHIMICA ACTA,2008,53(15):4998-5006.
APA Zhang, Min,Yang, Min,Hou, Zhifang,Dong, Yonglai,Cheng, Mojie,&程谟杰.(2008).A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs.ELECTROCHIMICA ACTA,53(15),4998-5006.
MLA Zhang, Min,et al."A bi-layered composite cathode of La0.8Sr0.2MnO3-YSZ and La0.8Sr0.2MnO3-La0.4Ce0.6O1.8 for IT-SOFCs".ELECTROCHIMICA ACTA 53.15(2008):4998-5006.
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