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LSM-YSZ nano-composite cathode with YSZ interlayer for solid oxide fuel cells
Liu, Zhongbo1,2; Zhao, Zhe1; Shang, Lei1,2; Ou, Dingrong1; Cui, Daan1; Tu, Baofeng1; Cheng, Mojie1
KeywordSolid Oxide Fuel Cell Lsm-ysz Cathode Interlayer Three Phase Boundary Oxygen Incorporation
Source PublicationJOURNAL OF ENERGY CHEMISTRY
2017-05-01
DOI10.1016/j.jechem.2016.11.019
Volume26Pages:510-514
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordYTTRIA-STABILIZED ZIRCONIA ; LOW-TEMPERATURE SYNTHESIS ; IMPEDANCE SPECTROSCOPY ; THIN-FILMS ; PERFORMANCE ; SOFC ; MICROSTRUCTURE ; POLARIZATION ; DEGRADATION ; DEPOSITION
AbstractLow temperature prepared (La-0.8 Sr-0.2)(0.9) MnO3-delta-Y-0.15 Zr-0.85 O-1.93 (LSM-YSZ) nano-composite cathode has high three-phase boundary (TPB) density and shows higher oxygen reduction reaction (ORR) activity than traditional LSM-YSZ cathode at reduced temperatures. But the weak connection between cathode and electrolyte due to low sintering temperature restrains the performance of LSM-YSZ nano-composite cathode. A YSZ interlayer, consisted of nanoparticles smaller than 10 nm, is introduced by spinning coating hydrolyzed YSZ sol solution on electrolyte and sintering at 800 degrees C. The thickness of the interlayer is about 150 nm. The YSZ interlayer intimately adheres to the electrolyte and shows obvious agglomeration with LSM-YSZ nano-composite cathode. The power densities of the cell with interlayer are 0.83, 0.46 and 0.21 W/cm 2 under 0.7 V at 80 0, 70 0 and 600 degrees C, respectively, which are 36%, 48% and 50% improved than that of original cell. The interlayer introduction slightly increases the ohmic resistance but significantly decreases the polarization resistance. The depressed high frequency arcs of impedance spectra suggest that the oxygen incorporation kinetics are enhanced at the boundary of YSZ interlayer and LSM-YSZ nanocomposite cathode, contributing to improved electrochemical performance of the cell with interlayer. (C) 2016Science Press and Dalian Institute of Chemical Physics,Chinese Academy of Sciences. Published by Elsevier B. V. and Science Press. All rights reserved.
Language英语
WOS IDWOS:000404653700027
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152086
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Fuel Cells, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Zhongbo,Zhao, Zhe,Shang, Lei,et al. LSM-YSZ nano-composite cathode with YSZ interlayer for solid oxide fuel cells[J]. JOURNAL OF ENERGY CHEMISTRY,2017,26:510-514.
APA Liu, Zhongbo.,Zhao, Zhe.,Shang, Lei.,Ou, Dingrong.,Cui, Daan.,...&Cheng, Mojie.(2017).LSM-YSZ nano-composite cathode with YSZ interlayer for solid oxide fuel cells.JOURNAL OF ENERGY CHEMISTRY,26,510-514.
MLA Liu, Zhongbo,et al."LSM-YSZ nano-composite cathode with YSZ interlayer for solid oxide fuel cells".JOURNAL OF ENERGY CHEMISTRY 26(2017):510-514.
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