Effects of GDC interlayer on performance of low-temperature SOFCs
文献类型：期刊论文
| 作者 | Yang, Min1,2; Yan, Aiyu1,2; Zhang, Min1,2; Hou, Zhifang1; Dong, Yonglai1; Cheng, Mojie1 |
| 刊名 | journal of power sources
 |
| 出版日期 | 2008-01-03 |
| 卷号 | 175期号:1页码:345-352 |
| 关键词 | solid oxide fuel cells Ce0.9Gd0.1O1.95 interfacial modification impedance spectroscopy open circuit voltage |
| ISSN号 | 0378-7753/$ |
| 产权排序 | 1;1 |
| 通讯作者 | 程谟杰 |
| 英文摘要 | to bridge the sintering temperature gap between the electrolyte and the cathode, low-temperature anode supported solid oxide fuel cells (sofcs) with various thickness of electrolyte interlayer were fabricated and investigated. the porous thin interlayer was dip-coated and fired onto the dense ce0.9gd0.1o1.95 (gdc) electrolyte surface. with humidified hydrogen as the fuel and air as the oxidant, the single cell with a 0.15 mu m interlayer achieved the maximum power density (mpd) of 0.9 w cm(-2) at 600 degrees c. the higher open circuit voltages (ocvs) (> 0.9 v at 600 degrees c) were obtained in this study. the impedance results showed that the porous interlayer not only improved the interfacial contact between electrolyte and cathode, but also increased electrochemically active surface area. the cathode/electrolyte polarization resistance exhibited minimum when a 0.15 mu m interlayer was added. the apparent activation energies derived from the arrhenius plots of interfacial polarization resistances were about the same when the added interlayer was thinner, which indicated that the reaction mechanism did not change. however, the corresponding values were higher as the thick interlayer was introduced, which could be ascribed to the retarded oxygen ion transfer in the added porous layer. the cell area specific resistance (asr) obtained by linear fitting i-v plot in the region of 0.6-0.7 v was higher than the ohmic resistance tested at ocv condition, and it was potentially attributed to the increased oxygen partial pressure at the anode as well as the contribution from polarization resistance, i.e. polarization of mass transport. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | electrochemistry ; energy & fuels |
| 研究领域[WOS] | electrochemistry ; energy & fuels |
| 关键词[WOS] | oxide fuel-cells ; doped ceria ; electrical-properties ; electrolytes ; cathodes ; anode ; conductivity ; behavior ; layers |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000252513100044 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/99511]  |
| 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, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Min,Yan, Aiyu,Zhang, Min,et al. Effects of GDC interlayer on performance of low-temperature SOFCs[J]. journal of power sources,2008,175(1):345-352. |
| APA | Yang, Min,Yan, Aiyu,Zhang, Min,Hou, Zhifang,Dong, Yonglai,&Cheng, Mojie.(2008).Effects of GDC interlayer on performance of low-temperature SOFCs.journal of power sources,175(1),345-352. |
| MLA | Yang, Min,et al."Effects of GDC interlayer on performance of low-temperature SOFCs".journal of power sources 175.1(2008):345-352. |
入库方式： OAI收割
来源：大连化学物理研究所
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