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Redox cycling of Ni-YSZ anode investigated by TPR technique
Zhang, Y; Liu, B; Tu, BF; Dong, YL; Cheng, MJ; Cheng MJ(程谟杰)
关键词Anode Ni-ysz Cermet Tpr Redox Cycling Solid Oxide Fuel Cell
刊名SOLID STATE IONICS
2005-09-01
DOI10.1016/j.ssi.2005.06.016
176期:29-30页:2193-2199
收录类别SCI
文章类型Article
部门归属3
项目归属302
产权排名1;1
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 ; TEMPERATURE-PROGRAMMED-REDUCTION ; OXIDE FUEL-CELLS ; SOFC ANODES ; CATALYSTS ; OXIDATION ; REACTIVITY ; COMPOSITE ; METHANE
英文摘要Effect of redox cycling on a Ni-YSZ anode prepared from 50 wt.% NiO and 50 wt.% YSZ was investigated by using temperature-programmed reduction (TPR), XRD and SEM techniques. XRD results showed that NiO was formed during re-oxidation. Both the XRD and TPR results depicted that the conversion of nickel to NiO depended on the re-oxidation temperature. The oxidation of Ni to NiO occurred quickly in the initial several minutes and then reached a quasi equilibrium. The TPR profiles tracing the redox cycling showed that it brought continuous changes in the NiO micro-structure at 800 degrees C, whereas at 600 degrees C it had only little effects on the reduction of NiO. Re-oxidation resulted in the formation of spongy aggregates of NiO crystallites. Redox cycling at 800 degrees C led to a continuous decrease in the primary crystallite size of NiO and a high dispersion of the Ni particles. A continuous expansion of the slice sample was observed in both of the oxidized and reduced states during the redox cycling at 800 degrees C, whereas this process did not occur during the redox cycling at 600 degrees C. (c) 2005 Elsevier B.V All rights reserved.
语种英语
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WOS记录号WOS:000232289500002
引用统计
被引频次:60[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/321008/93277
专题中国科学院大连化学物理研究所
通讯作者Cheng MJ(程谟杰)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab New Energy Resources, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Zhang, Y,Liu, B,Tu, BF,et al. Redox cycling of Ni-YSZ anode investigated by TPR technique[J]. SOLID STATE IONICS,2005,176(29-30):2193-2199.
APA Zhang, Y,Liu, B,Tu, BF,Dong, YL,Cheng, MJ,&程谟杰.(2005).Redox cycling of Ni-YSZ anode investigated by TPR technique.SOLID STATE IONICS,176(29-30),2193-2199.
MLA Zhang, Y,et al."Redox cycling of Ni-YSZ anode investigated by TPR technique".SOLID STATE IONICS 176.29-30(2005):2193-2199.
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