The reduction reaction kinetics of vanadium(V) in acidic solutions on a platinum electrode with unusual difference compared to carbon electrodes
文献类型：期刊论文
| 作者 | Wang, WJ; Fan, XZ; Qin, Y; Liu, JG; Yan, CW; Zeng, CL |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 283页码:1313-1322 |
| 关键词 | Vanadium redox flow battery VO2+/VO2+ redox couple Reduction mechanism Carbon Platinum |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2018.07.071 |
| 英文摘要 | With the consideration of understanding the interplays between the electrolyte and electrode for the V0+(2)/V0(2+) redox reactions at various electrodes and developing high-activity electrode materials for an all-vanadium redox flow battery, the reduction reaction kinetics of vanadium(V) ions on a platinum (Pt) electrode in comparison with that on carbon electrodes is investigated by steady-state potentiodynamic polarization and impedance spectroscopy measurements in sulfuric acid solutions with various pH and vanadium concentrations. No abnormal increase is observed neither in the cathodic Tafel slope nor the charge transfer resistance (R-ct) at a transition potential (E-k) on the Pt electrode. However, an abrupt change in the Tafel slope and R-ct of vanadium(V) ions is observed on carbon electrodes. The above results indicate that the reduction reaction kinetics of vanadium(V) ions in acidic solutions on the Pt electrode show some unusual difference with that on carbon electrodes, and this is the first study to report such a new phenomenon. Additionally, possible mechanism pathways for the reduction reaction of vanadium (V) ions in acidic solutions are proposed for the above-mentioned carbon and Pt electrodes in this work. (C) 2018 Elsevier Ltd. All rights reserved. |
| 学科主题 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000441077900143 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79986]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, WJ,Fan, XZ,Qin, Y,et al. The reduction reaction kinetics of vanadium(V) in acidic solutions on a platinum electrode with unusual difference compared to carbon electrodes[J]. ELECTROCHIMICA ACTA,2018,283:1313-1322. |
| APA | Wang, WJ,Fan, XZ,Qin, Y,Liu, JG,Yan, CW,&Zeng, CL.(2018).The reduction reaction kinetics of vanadium(V) in acidic solutions on a platinum electrode with unusual difference compared to carbon electrodes.ELECTROCHIMICA ACTA,283,1313-1322. |
| MLA | Wang, WJ,et al."The reduction reaction kinetics of vanadium(V) in acidic solutions on a platinum electrode with unusual difference compared to carbon electrodes".ELECTROCHIMICA ACTA 283(2018):1313-1322. |
入库方式： OAI收割
来源：金属研究所
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