Understanding of redox behavior of Ni-YSZ cermets
文献类型：期刊论文
| 作者 | Zhang, Yun1,2,3; Liu, Bin1,2,3; Tu, Baofeng1,2; Dong, Yonglai1,2; Cheng, Mojie1,2 |
| 刊名 | solid state ionics
 |
| 出版日期 | 2009-12-08 |
| 卷号 | 180期号:36-39页码:1580-1586 |
| 关键词 | SOFC Ni-YSZ cermet Redox TPO TPR SEM |
| 英文摘要 | the oxidation of ni-ysz cermet as well the reduction of re-oxidized ni-ysz cermet was investigated by using temperature-programmed oxidation (tpo), temperature-programmed reduction (tpr) and scanning electron microscope (sem). the scanning electron microscope (sem) photographs and temperature-programmed reduction (tpr) profiles indicated that the sintering of smaller nickel oxide crystallites to larger aggregates occurred concurrently with the formation of smaller nickel oxide crystallites from the oxidation of nickel at 800 degrees c, and the sintering of smaller nickel oxide crystallites at 600 degrees c was slower than that at 800 degrees c. the sem results showed that each ni particle was separated into a lot of smaller nio particles during oxidation. the tpo profiles showed that two kinds of nickel particles exist in the anode reduced at 800 and 600 degrees c, one with high activity towards oxidation for the nickel crystallites directly from reduction, and another one with low activity towards oxidation for the sintered nickel particles. the ni-ysz anodes reduced at higher temperature showed higher re-oxidation temperature than the one reduced at lower temperature because of the accelerated passivating and sintering of the smaller nickel particles at higher temperature. the re-oxidation profiles were almost unchanged during redox cycling at 600 degrees c. whereas the re-oxidation peak temperature decreased during redox cycling at 800 degrees c, indicating that the primary nickel grains split to smaller ones upon cyclic reduction at higher temperature. (c) 2009 elsevier b.v. all rights reserved. |
| 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] | oxide fuel-cells ; sofc anodes ; in-situ ; microstructural characterization ; reduction ; oxidation ; durability ; tolerance ; kinetics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273439600007 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141401]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cell, Dalian 116023, Peoples R China 2.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yun,Liu, Bin,Tu, Baofeng,et al. Understanding of redox behavior of Ni-YSZ cermets[J]. solid state ionics,2009,180(36-39):1580-1586. |
| APA | Zhang, Yun,Liu, Bin,Tu, Baofeng,Dong, Yonglai,&Cheng, Mojie.(2009).Understanding of redox behavior of Ni-YSZ cermets.solid state ionics,180(36-39),1580-1586. |
| MLA | Zhang, Yun,et al."Understanding of redox behavior of Ni-YSZ cermets".solid state ionics 180.36-39(2009):1580-1586. |
入库方式： OAI收割
来源：大连化学物理研究所
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