Physical properties and electrochemical performance of solid K2FeO43 samples prepared by ex-situ and in-situ electrochemical methods
文献类型：期刊论文
| 作者 | Z. H. Xu ; J. M. Wang ; H. B. Shao ; J. Q. Zhang |
| 刊名 | Chinese Journal of Chemical Engineering
 |
| 出版日期 | 2007 |
| 卷号 | 15期号:1页码:39-43 |
| 关键词 | K2FeO4 electrosynthesis discharge performance electrochemical impedance spectroscopy (EIS) super-iron battery fe(vi) ferrate fuel-cell electrolyte cathodes |
| ISSN号 | 1004-9541 |
| 中文摘要 | K2FeO4 powders were synthesized by the ex-situ and in-situ electrochemical methods, respectively, and characterized by infrared spectrum (IR), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and BET. Their electrochemical performances were investigated by means of galvanostatic discharge and electrochemical impedance spectroscopy (EIS). The results of physical characterization showed that the two samples have similar structural features, but their surface morphologies and oriented growth of the crystals are different, which results in smaller specific surface area and lower solubility of the ex-situ electrosynthesized K2FeO4 sample. The results of discharge experiments indicated that the ex-situ electrosythesized K2FeO4 electrode has much larger discharge capacity and lower electrode polarization than the in-situ electrosynthesized K2FeO4 electrode. It was found from the results of EIS that lower electrochemical polarization might be responsible for the improvement on the discharge performance of the ex-situ electrosynthesized K2FeO4 electrode. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33959]  |
| 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. H. Xu,J. M. Wang,H. B. Shao,et al. Physical properties and electrochemical performance of solid K2FeO43 samples prepared by ex-situ and in-situ electrochemical methods[J]. Chinese Journal of Chemical Engineering,2007,15(1):39-43. |
| APA | Z. H. Xu,J. M. Wang,H. B. Shao,&J. Q. Zhang.(2007).Physical properties and electrochemical performance of solid K2FeO43 samples prepared by ex-situ and in-situ electrochemical methods.Chinese Journal of Chemical Engineering,15(1),39-43. |
| MLA | Z. H. Xu,et al."Physical properties and electrochemical performance of solid K2FeO43 samples prepared by ex-situ and in-situ electrochemical methods".Chinese Journal of Chemical Engineering 15.1(2007):39-43. |
入库方式： OAI收割
来源：金属研究所
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