欢迎访问《电化学(中英文)》期刊官方网站,今天是
研究论文

含镓、锡的铝合金在碱性溶液中的活化机理

  • 李振亚 ,
  • 易玲 ,
  • 刘稚蕙 ,
  • 杨林 ,
  • 苏景新 ,
  • 陈艳英
展开
  • 北京科技大学固体电解质研究室!北京100083,天津大学化工学院!天津300072,天津大学化工学院!天津300072,天津大学化工学院!天津300072,天津大学化工学院!天津300072

收稿日期: 2001-08-28

  修回日期: 2001-08-28

  网络出版日期: 2001-08-28

The Activation Mechanism of Al Alloys with Tin and Gallium in Alkaline Electrolytes

  • LI Zhen ya ,
  • YI Ling ,
  • LIU Zhi hui ,
  • YANG Lin ,
  • SU Jing xin ,
  • CHEN Yan ying
Expand
  • (1. Tianjin Univ.,Tianjin 300072; 2. Univ. of Sci. and Tech. Beijing, Beijing 100083, China

Received date: 2001-08-28

  Revised date: 2001-08-28

  Online published: 2001-08-28

摘要

镓锡合金沉积于铝阳极表面 ,形成活化点 ,是铝阳极活化的根本原因 .简单的Al_Sn、Al_Ga二元合金在碱性介质中不能活化 .Al_Sn_Ga多元合金阳极溶解时 ,Ga、Sn溶解进入溶液 .锡离子首先还原沉积于铝阳极表面 ,镓离子又在沉积的锡上沉积 ,在铝合金阳极表面不断形成Ga_Sn合金活性点 .低溶点的合金由于其良好的流动性 ,以单个或多个原子的形式嵌入氧化膜 ,形成活性点 ,起到了局部分离氧化膜的作用 ,是铝合金阳极活化的关键

本文引用格式

李振亚 , 易玲 , 刘稚蕙 , 杨林 , 苏景新 , 陈艳英 . 含镓、锡的铝合金在碱性溶液中的活化机理[J]. 电化学, 2001 , 7(3) : 316 -320 . DOI: 10.61558/2993-074X.3261

Abstract

The major reason for Al_anode's activation is that Ga and Sn deposit on the aluminum surface and form activated points. The Al_Sn and Al_Ga binary alloys can't be activated in alkaline medium. During the dissolution of the Al_Sn_Ga ternary anode, Sn and Ga dissolve into the solution and transform into ions. After the Sn ions deposit on the surface of Al_anode, the Ga ions will deposit on Sn. The higher activation of the polynary alloy anode is caused by much more new activated points composed of Ga_Sn alloy being continually formed. Ga_Sn alloy with low melting point deposited on the surface of Al can implant in the oxide film with single or multi_atoms because of their fluidity, and form active points which can separate oxide film locally. This is the key for activation of Al alloy.

参考文献

[1] ReboulMC ,GimenezPH ,RameauJJ .AproposedactivationmechanismforAlanodes[J].Corrosion,1984,40:366~371. [2] ZhuYuanbao,ShenZichen,ZhangChuanfu,etal.HandbookofElectrochemistrydata(1stversion[M].Hu nan:HunanScienceandTechnologyPress,1985,208~224. [3] TuckCDS ,HunterJA ,ScamansGM .TheelectrochemicalbehaviorofAl_Gaalloysinalkalineandneutralelectrolytes[J].J .Electrochem.Soc,1987,134(12):2970. [4] ShelkMideenA ,GanesanM ,AnbukulM ,etal.Developmentofnewalloysofcommercialaluminum(2s)withzinc,indium,tin,andbismuthasanodesforalkalinebatteries[J].J .PowerSoures,1987(27):235. [5] WilhelmsenW ,ArnesenT ,Hasvold,etal.TheelectrochemicalbehaviorofAl_Inalloysinalkalineelec trolytes[J].Electrochim.Acta.1991,36(1):79. [6] LiZhenya,QinXue,YuYuanbin,etal.TheElectrochemicalbehaviorofAlalloyscontainingtinandgalliuminalkalineelectrolytes[J].ActaPhysico chimicaSinica,1999,15(4):381~384. [7] GuXuemin.SeriesofInorganicChemistry(Vol.2)[M ].Beijing:SciencePress,1990:538
Options
文章导航

/