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Electrochemical performance of mixed ionic-electronic conducting oxides as anodes for solid oxide fuel cell
Wang, SZ; Jiang, Y; Zhang, YH; Li, WZ; Yan, JW; Lu, ZG
关键词Mixed Ionic-electronic Conducting Oxides Anodes Methane Oxidation Solid Oxide Fuel Cell
刊名SOLID STATE IONICS
1999-05-01
120期:1-4页:75-84
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Condensed Matter
研究领域[WOS]Chemistry ; Physics
关键词[WOS]YTTRIA-STABILIZED ZIRCONIA ; PARTIAL OXIDATION ; OXYGEN ELECTRODES ; METHANE ; SRFECO0.5OX ; TRANSPORT ; KINETICS ; SYNGAS
英文摘要Mixed ionic-electronic conducting (MIEC) oxides, SrFeCo0.5Ox, SrCo0.8Fe0.2O3-delta and La0.6Sr0.4Fe0.8Co0.2O3-delta have been synthesized and prepared on yttria-stabilized zirconia as anodes for solid oxide fuel cells. Power output measurements show that the anodes composed of such kinds of oxides exhibit modest electrochemical activities to both H-2 and CH4 fuels, giving maximum power densities of around 0.1 W/cm(2) at 950 degrees C. Polarization and AC impedance measurements found that large activation overpotentials and ohmic resistance drops were the main causes for the relative inferior performance to the Ni-YSZ anode. While interlayered with an Ni-YSZ anode, a significant improvement in the electrochemical performance was observed. in particular, for the SrFeCo0.5Ox oxide interlayered Ni-YSZ anode, the maximum power output reaches 0.25 W/cm2 on CH,, exceeding those of both SrFeCo0.5Ox and the Ni-YSZ, as anodes alone. A synergetic effect of SrFeCo0.5Ox and the Ni-YSZ has been observed. Future work is needed to examine the long-term stability of MIEC oxide electrodes under a very reducing environment. (C) 1999 Elsevier Science B.V. All rights reserved.
语种英语
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WOS记录号WOS:000080091800009
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/86151
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Wang, SZ,Jiang, Y,Zhang, YH,et al. Electrochemical performance of mixed ionic-electronic conducting oxides as anodes for solid oxide fuel cell[J]. SOLID STATE IONICS,1999,120(1-4):75-84.
APA Wang, SZ,Jiang, Y,Zhang, YH,Li, WZ,Yan, JW,&Lu, ZG.(1999).Electrochemical performance of mixed ionic-electronic conducting oxides as anodes for solid oxide fuel cell.SOLID STATE IONICS,120(1-4),75-84.
MLA Wang, SZ,et al."Electrochemical performance of mixed ionic-electronic conducting oxides as anodes for solid oxide fuel cell".SOLID STATE IONICS 120.1-4(1999):75-84.
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