Effect of magnetic field on anodic dissolution of nickel in an alkaline solution with chloride ions

被引：1
|
作者：
Ling, Sichun [1 ,2 ]
Jia, Yibo [1 ,2 ]
Ning, Fei [1 ,2 ]
Li, Hongjuan [1 ,2 ]
Xiao, Qian [1 ,2 ]
Lu, Zhanpeng [1 ,2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Inst Mat, Shanghai 200072, Peoples R China
[2] Shanghai Univ, State Key Lab Adv Special Steels, Shanghai 200072, Peoples R China
来源：
SELECTED PROCEEDINGS FROM THE 233RD ECS MEETING | 2018年 / 85卷 / 13期
基金：
国家重点研发计划;
关键词：
IRON; CORROSION; COPPER; MAGNETOELECTROLYSIS; ELECTROCHEMISTRY; OSCILLATIONS; PASSIVATION; DEPENDENCE; TRANSPORT; BEHAVIOR;
D O I：
10.1149/08513.0615ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrochemical measurements of nickel in sodium hydroxide solution with chlorides with and without magnetic field are used to investigate the effect of magnetic field on the anodic behavior and the results of the magnetic field effects on the reaction rates and electrode surface morphology. When polarized at potentials in the passive range such as 0.1 V(SCE), 0.3 V( SCE) and 0.4 V(SCE), the anodic current decreased after imposing a 0.4 T magnetic field and increased after withdrawing the magnetic field. When polarized at 0.6 V(SCE) and 0.8 V(SCE) potential, Ni was under transpassive dissolution and imposing a 0.4 T magnetic field increased the anodic current while withdrawing the magnetic field decreased the anodic current as the results of magnetohydrodynamic effect. Pit growth period for Ni polarized at 0.8 V(SCE) was enhanced by the applied magnetic field.
引用
收藏
页码：615 / 623
页数：9
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