摘要
采用电化学方法研究了氯离子浓度、温度、阳极极化电流及三者间相互协同作用对99．9999％高纯锌参比电极电位稳定性的影响。结果表明，常温（25℃）下氯离子浓度越高，电极的稳定电位越负；在海水中，偏离25℃，温度升高或降低时，电极电位都会负移，当温度达到50℃时，锌上沉积的腐蚀产物结构改变使锌的电极电位正移；海水温度在0～25℃，阳极极化电流〈5μA／cm^2，高纯锌具有良好的电流负载能力。
The effect of Cl^- concentration, temperature and anodic polarization current on the potential stability of high purity zinc reference electrode was investigated. The higher the Cl^- concentration, the more negative the electrode potential. The potential shifted to the negative value while the temperature was higher or lower than 25 ℃, but it shifted to positive at 50℃ due to the deposition of corrosion product on the electrode surface. When the seawater temperature was between 0℃ and 25 ℃, and the anodic polarization current was lower than 5μA/cm^2 , high purity zinc exhibited high performance of current-load ability.
出处
《腐蚀与防护》
CAS
北大核心
2006年第9期450-453,共4页
Corrosion & Protection
关键词
高纯锌
氯离子浓度
温度
阳极极化电流
High purity zinc
Cl^- concentration
Temperature
Anodic polarization current
