摘要
本文研究了硫化镍阳极在氯化物溶液中的电解行为,发现在一定温度下,电极电位发生较大幅度的下降。除温度外,电极结构、电流密度、溶液 pH 值等因素也对电极电位有一定影响。溶液中 SO_4^(2-)离子的浓度也会引起电解时电位的变化。本工作对于这些影响因素进行了探讨,并对于电极产物进行了显微观测及物理、化学检测。
In this work,the behavior of Ni_3S_2 anode in the chloride solu- tion was studied under a variety of conditions.It was found that the anodic potential dropped substantially when the solution temperature was above a critical value,which varied slightly in the range from 60 to 75℃ among indi- vidual sample anodes The anode potential and transition temperature are influe- nced by the electrode structure,current density,pH value of the solution and the concentration of sulfate ion.The possible mechanism of anodie oxidation of sulfur is discussed in light of the electrochemical measurements and the results of detection of products on the anode surface.
出处
《化工冶金》
CSCD
北大核心
1990年第3期236-240,共5页
关键词
硫化镍
阳极电解
电化学
Ni_3S_2 Anodic dissolution Electrochemistry
