Effect of Dy on the corrosion of NiO/Ni in molten (0.62Li,0.38K)(2)CO3
文献类型：期刊论文
| 作者 | Z. P. Liu ; P. Y. Guo ; C. L. Zeng |
| 刊名 | Journal of Power Sources
 |
| 出版日期 | 2007 |
| 卷号 | 166期号:2页码:348-353 |
| 关键词 | molten carbonate fuel cell Dy Ni-Dy alloys NiO solubility electrochemical polarization carbonate fuel-cell electrochemical impedance oxidation behavior fe-20cr alloys base alloys cathodes solubility oxide mcfc licoo2 |
| ISSN号 | 0378-7753 |
| 中文摘要 | The dissolution of NiO cathodes and the balance between the corrosion and contact ohmic resistance of current collector materials in molten carbonates are great obstacles to the commercialization of molten carbonate fuel cells (MCFC). Rare-earth element dysprosium was proposed to modify the NiO cathodes and to alloy nickel to explore its possible applications in MCFC. The measured solubility of NiO impregnated with 0.5-3 wt.% Dy in (0.62Li,0.38K)(2)CO3 at 650 degrees C in 60% CO-40% O-2 indicated that Dy addition increased noticeably the stability of NiO, while I wt.% Dy content produced better effectiveness. An investigation of the passive behavior of nickel and of Ni-Dy alloys containing 1-10 wt.% Dy in molten (Li,K)(2)CO3 with dynamic polarization measurements as well as X-ray diffraction and X-ray photoelectron spectroscopy indicated that the addition of Dy to nickel decreased its passive anodic current, and thus improved its corrosion resistance. The lithiation of NiO in the melt was a very significant reaction that could be promoted by the Dy additives to a certain extent, and increased the electrical conductivity of NiO. (c) 2007 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33727]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. P. Liu,P. Y. Guo,C. L. Zeng. Effect of Dy on the corrosion of NiO/Ni in molten (0.62Li,0.38K)(2)CO3[J]. Journal of Power Sources,2007,166(2):348-353. |
| APA | Z. P. Liu,P. Y. Guo,&C. L. Zeng.(2007).Effect of Dy on the corrosion of NiO/Ni in molten (0.62Li,0.38K)(2)CO3.Journal of Power Sources,166(2),348-353. |
| MLA | Z. P. Liu,et al."Effect of Dy on the corrosion of NiO/Ni in molten (0.62Li,0.38K)(2)CO3".Journal of Power Sources 166.2(2007):348-353. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。