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Optimization of anode structure for intermediate temperature solid oxide fuel cell via phase-inversion cotape casting
Lin, Jie1; Miao, Guoshuan2; Xia, Changrong1; Chen, Chusheng1; Wang, Shaorong2; Zhan, Zhongliang2
2017
发表期刊Journal of the American Ceramic Society
ISSN00027820
卷号100期号:8页码:3794-3800
摘要A functional layer and a porous support that together constitute an anode for a solid oxide fuel cell were simultaneously formed by the phase-inversion tape casting method. Two slurries, one composed of NiO and yttria-stabilized zirconia (YSZ) powders and the other of NiO, YSZ, and graphite were cocasted and solidified by immersion in a water bath via the phase-inversion mechanism. The as-formed green tape consisted of a sponge-like thin layer and a fingerlike thick porous layer, derived from the first slurry and the second slurry, respectively. The former acted as the anode functional layer (AFL), while the latter was used as the anode substrate. The AFL thickness was varied between 20 and 60 μm by adjusting the blade gap for the tape casting. Single cells based on such NiO-YSZ anodes were prepared with thin YSZ electrolytes and YSZ-(La0.8Sr0.2)0.95MnO3−δ(LSM) cathodes, and their electrochemical performance was measured using air as oxidant and hydrogen as fuel. The maximum power densities obtained at 750°C were 720, 821, and 988 mW cm−2with the AFL thickness at 60, 40, and 20 μm, respectively. The satisfactory electrochemical performance was attributed to the dual-layer structure of the anode, where the sponge-like AFL layer provided plenty of triple-phase boundaries for hydrogen oxidation, and the fingerlike thick porous substrate allowed for facile fuel transport. The phase-inversion tape casting developed in this study is applicable to the preparation of other planar ceramic electrodes with dual-layer asymmetric structure. © 2017 The American Ceramic Society
DOI10.1111/jace.14907
EI入藏号20171803628523
EI主题词Solid oxide fuel cells (SOFC)
EI分类号702.2 Fuel Cells - 714.1 Electron Tubes - 801.3 Colloid Chemistry - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 921.5 Optimization Techniques
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25920
专题中国科学院上海硅酸盐研究所
作者单位1.CAS Key Laboratory of Materials for Energy Conversion, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China;
2.Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), Shanghai, China
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GB/T 7714
Lin, Jie,Miao, Guoshuan,Xia, Changrong,et al. Optimization of anode structure for intermediate temperature solid oxide fuel cell via phase-inversion cotape casting[J]. Journal of the American Ceramic Society,2017,100(8):3794-3800.
APA Lin, Jie,Miao, Guoshuan,Xia, Changrong,Chen, Chusheng,Wang, Shaorong,&Zhan, Zhongliang.(2017).Optimization of anode structure for intermediate temperature solid oxide fuel cell via phase-inversion cotape casting.Journal of the American Ceramic Society,100(8),3794-3800.
MLA Lin, Jie,et al."Optimization of anode structure for intermediate temperature solid oxide fuel cell via phase-inversion cotape casting".Journal of the American Ceramic Society 100.8(2017):3794-3800.
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