Comparison study of the electrochemical behavior of vanadate in NaOH and KOH solutions
文献类型：会议论文
| 作者 | Liu, Biao1,2; Zheng, Shili2; Liu, Huibin1,2; Du, Hao2; Wang, Shaona2; Chen, Donghui3; Bai, Ruiguo3 |
| 出版日期 | 1905-07-04 |
| 会议日期 | December 23, 2011 - December 25, 2011 |
| 会议地点 | Beihai, China |
| 关键词 | Potassium hydroxide - Ions - Reduction - Redox reactions - pH - Vanadium - Glass membrane electrodes - Sodium hydroxide |
| 卷号 | 402 |
| DOI | 10.4028/www.scientific.net/AMR.402.66 |
| 页码 | 66-73 |
| 英文摘要 | The redox behavior of vanadate ions at glassy carbon electrode in KOH solutions with concentration ranging from 0.1M to 1M had been studied using cyclic voltammetry method. It is found out that vanadate ions experience similar redox reactions in both NaOH and KOH solutions, which involve a single cathodic reduction and two oxidation reactions in one cyclic sweep. Nearly same currents are obtained under the same reaction conditions in both solutions. However, vanadate ions appear more difficult to be reduced in KOH solutions than in NaOH solutions, and the reduction reaction exhibits higher irreversibility. The reduction potential is influenced by vanadate ions concentration, and is more negative in KOH solutions. The reversibility of reduction reaction is greatly dependent on alkalinity, and the reduction potential obviously decreases with the increase of alkalinity in KOH solutions. However, only a slight decrease was observed in NaOH solution, which may be due to the fact that OH- exhibits higher activity in KOH solutions. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2011 International Conference on Chemical, Material and Metallurgical Engineering, ICCMME 2011
 |
| 学科主题 | Cyclic Voltammetry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59511]  |
| 作者单位 | 1.Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China 3.Research Center of Vanadium and Titanium Technology, Chengde Iron and Steel Group Co. Ltd., Hebei Iron and Steel Group Co. Ltd., Chengde, Hebei 067102, China |
| 推荐引用方式 GB/T 7714 | Liu, Biao,Zheng, Shili,Liu, Huibin,et al. Comparison study of the electrochemical behavior of vanadate in NaOH and KOH solutions[C]. 见:. Beihai, China. December 23, 2011 - December 25, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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