Electrochemical reaction and surface tension change of Wood liquid alloy in NaOH solution

doi:10.11949/j.issn.0438-1157.20160946

	Electrochemical reaction and surface tension change of Wood liquid alloy in NaOH solution
	Zhang, Guodi; Li, Fuxiang; Chen, Jianhong; Cao, Rui; Lin, Qiaoli
刊名	Huagong Xuebao/CIESC Journal
	2017-03-01
卷号	68 期号:3 页码:1122-1128
关键词	Bismuth compounds Drops Electric fields Electrochemistry Electrolytes Graphite electrodes Liquids Microfluidics Oxidation Oxide films Reduction Sodium alloys Sodium hydroxide Surface reactions Surface tension Thin films Wetting Wood Capillary force Cathodic reductions Dynamic process Electro wetting Electrochemical reactions NaOH solutions Oxidation film Oxidation reactions
ISSN号	04381157
DOI	10.11949/j.issn.0438-1157.20160946
英文摘要	By variation of liquid Wood metal's environment in NaOH solution and application of electric field with graphite electrode, surface tension of the liquid metal, interfacial electrochemical reaction, generation of oxidation film, and other dynamic processes were studied. The results showed that thin oxidation film on the surface of Wood alloy droplets which was formed by anodic oxidation reaction quickly reduced surface tension of Wood alloy and the oxidation film on surface of liquid alloy droplets would return to neutral state by cathodic reduction reaction within 3 seconds. The electrical capillary force broke the oxide film so that metal oxides reacted with NaOH to generate ions of Sn(OH)62-, SnO32-, SnO22-, PbO32-, Cd(OH)42- which altered solution colors with a white precipitate of Bi2O3-Bi(OH)3 copolymer. The dielectric wetting and solution electrowetting on thin film essentially had the same mechanism. With the increase of voltage, the surface tension was decreased and electrowetting spreading process was occurred obviously, but the wetting angle exhibited saturation as a result of limited number of OH- ions adsorbed on alloy droplets by electrochemical reactions. © All Right Reserved.
语种	中文
出版者	Materials China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114018]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, College of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhang, Guodi,Li, Fuxiang,Chen, Jianhong,et al. Electrochemical reaction and surface tension change of Wood liquid alloy in NaOH solution[J]. Huagong Xuebao/CIESC Journal,2017,68(3):1122-1128.
APA	Zhang, Guodi,Li, Fuxiang,Chen, Jianhong,Cao, Rui,&Lin, Qiaoli.(2017).Electrochemical reaction and surface tension change of Wood liquid alloy in NaOH solution.Huagong Xuebao/CIESC Journal,68(3),1122-1128.
MLA	Zhang, Guodi,et al."Electrochemical reaction and surface tension change of Wood liquid alloy in NaOH solution".Huagong Xuebao/CIESC Journal 68.3(2017):1122-1128.