Effect of Electrochemical Factors on Formation and Reduction of Silver Oxides

IMR OpenIR

	Effect of Electrochemical Factors on Formation and Reduction of Silver Oxides
	Y. Wan; X. L. Wang; S. Y. Liu; Y. B. Li; H. Sun; Q. Wang
	2013
发表期刊	International Journal of Electrochemical Science
ISSN	1452-3981
卷号	8 期号:12 页码:12837-12850
摘要	Polarization of silver in NaOH solution with various electrochemical parameters was investigated by cyclic voltammetry and scanning electron microscope. The resulting cyclic voltammograms reveal that the observed midpoint potential and current density of the peaks during the anodic scan and the reversed scan can be shifted significantly depending on scan rate and NaOH concentration. The shapes of the peaks in the first cycle were different from the other cycles of silver' cyclic voltammetry. The peaks were barely dependent of scan rate since the second cycle. Two layers of Ag2O, which owed to the formation of dual anodic peaks of Ag2O, appeared during the anodic scan of silver' cyclic voltammetry. Two secondary anodic peaks were formed if the scan rate was no less than 20 mV/s and NaOH concentration was no less than 0.5 mol.L-1 The trenched images by focus ion beam system explored that the depth of the polarized silver was approximately 810 nm after three cycles with a scan rate of 10 mV/s in 1 mol.L-1 NaOH solution. The images of the polarized silver clarified the formation and shifts of the peaks in silver's cyclic voltammetry.
部门归属	[wan, ye ; li, yanbo ; wang, qing] shenyang jianzhu univ, sch mat sci & engn, shenyang 110168, peoples r china. [wan, ye ; wang, xianle ; liu, siyu ; sun, hong] shenyang jianzhu univ, sch traff & mech engn, shenyang 110168, peoples r china. [wan, ye] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wan, y (reprint author), shenyang jianzhu univ, sch mat sci & engn, shenyang 110168, peoples r china. ; ywan@sjzu.edu.cn
关键词	Silver Cyclic Voltammetry Anodic Peak Reduction Peak Focus Ion Beam Alkaline-solution Anodic-oxidation Cyclic Voltammetry Initial-stages Impedance Electrodes Koh Dissolution Kinetics Ag2o
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71510
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wan,X. L. Wang,S. Y. Liu,et al. Effect of Electrochemical Factors on Formation and Reduction of Silver Oxides[J]. International Journal of Electrochemical Science,2013,8(12):12837-12850.
APA	Y. Wan,X. L. Wang,S. Y. Liu,Y. B. Li,H. Sun,&Q. Wang.(2013).Effect of Electrochemical Factors on Formation and Reduction of Silver Oxides.International Journal of Electrochemical Science,8(12),12837-12850.
MLA	Y. Wan,et al."Effect of Electrochemical Factors on Formation and Reduction of Silver Oxides".International Journal of Electrochemical Science 8.12(2013):12837-12850.