| The reduction reaction kinetics of vanadium(V) in acidic solutions on a platinum electrode with unusual difference compared to carbon electrodes | |
| Wang, Wenjun; Fan, Xinzhuang; Qin, Ye; Liu, Jianguo; Yan, Chuanwei; Zeng, Chaoliu | |
| Corresponding Author | Wang, Wenjun(wjwang10s@imr.ac.cn) ; Zeng, Chaoliu(clzeng@imr.ac.cn) |
| 2018-09-01 | |
| Source Publication | ELECTROCHIMICA ACTA
 |
| ISSN | 0013-4686 |
| Volume | 283Pages:1313-1322 |
| Abstract | 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. |
| Keyword | Vanadium redox flow battery VO2+/VO2+ redox couple Reduction mechanism Carbon Platinum |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.electacta.2018.07.071 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21573257] |
| WOS Research Area | Electrochemistry |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:000441077900143 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129136 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Wenjun; Zeng, Chaoliu |
| Affiliation | Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Wenjun,Fan, Xinzhuang,Qin, Ye,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, Wenjun,Fan, Xinzhuang,Qin, Ye,Liu, Jianguo,Yan, Chuanwei,&Zeng, Chaoliu.(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, Wenjun,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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment