| 固体氧化物燃料电池Cr毒化La0.8Sr0.2MnO3-δ(LSM)阴极机理 |
| |
| 引用本文： | 付长璟,孙克宁,张乃庆,周德瑞.固体氧化物燃料电池Cr毒化La0.8Sr0.2MnO3-δ(LSM)阴极机理[J].高等学校化学学报,2007,28(9):1762-1764. |
| |
| 作者姓名： | 付长璟 孙克宁 张乃庆 周德瑞 |
| |
| 作者单位： | 1. 哈尔滨工业大学应用化学系,哈尔滨,150001
2. 北京师范大学材料科学工程系,北京,100875 |
| |
| 摘 要： | 从电化学阻抗谱和阴极极化等方面对Cr毒化La0.8Sr0.2MnO3-δ(LSM)阴极机理进行了研究.
|
| 关 键 词： | 固体氧化物燃料电池 铬 阴极 LSM |
| 文章编号： | 0251-0790（2007）09-1762-03 |
| 收稿时间： | 2007-01-29 |
| 修稿时间： | 2007-01-29 |
Mechanism of Chromium Poisoning of LSM Cathode in Solid Oxide Fuel Cell |
| |
| FU Chang-Jing,SUN Ke-Ning,ZHANG Nai-Qing,ZHOU De-Rui.Mechanism of Chromium Poisoning of LSM Cathode in Solid Oxide Fuel Cell[J].Chemical Research In Chinese Universities,2007,28(9):1762-1764. |
| |
| Authors: | FU Chang-Jing SUN Ke-Ning ZHANG Nai-Qing ZHOU De-Rui |
| |
| Institution: | Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China;
Department of Materials Science &; Engineering , Beijing Normal University, Beijing 100875, China |
| |
| Abstract: | Although metallic interconnects have many advantages, the formation of Cr2O3 scale and the evaporation of Cr(Ⅵ) species from alloys will greatly degrade the solid oxide fuel cell(SOFC) performance. In this paper, the electrochemical impedance spectroscopy(EIS) and the cathode polarization method of galvanostatic current interruption were employed to investigate the deposition mechanism of chromium with the electrochemical behavior of LSM cathode in the presence of chromia-forming alloys. The results show that the dissociative adsorption and the diffusion of oxygen on the LSM surface were inhibited by the gaseous chromium species and the migration processes of oxygen ions into YSZ electrolyte were inhibited by the solid chromium species deposited on the YSZ surface. |
| |
| Keywords: | Solid oxide fuel cell Chromium Cathode 0 8Sr0 La0" target="_blank">2MnO3-δ')" href="#"> La0 8Sr0 2MnO3-δ |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
