碱性电解液中铝合金的电化学行为  

Electrochemical behavior of aluminum alloy in alkaline electrolyte

作　　者：陈昌国[1] 郑洪波[1] 刘渝萍[1] 余丹梅[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044

出　　处：《电池》2007年第6期432-434,共3页Battery Bimonthly

摘　　要：采用线性扫描伏安、恒流放电等方法,研究了不同温度下,铝合金在添加了NaAlO2和NaF的4mol/LNaOH溶液中的电化学行为。结果表明:添加NaAlO2后,铝合金的极化、腐蚀加剧,开路电位正移。添加60mmol/LNaF能降低NaAlO2的不利影响,使铝合金基本恢复到在4mol/LNaOH溶液中的电化学行为。The electrochemical behaviors of aluminum alloy at different temperatures in 4 mol/L NaOH solution which added NaAlO2 and NaF were studied by linear sweep voltammetry and galvanostatie discharge methods. The results showed that after ridding NaAlO2, the polarization and corrosion of aluminum alloy became serious, the open circuit voltage shifted positively. The adding of 60 mmol/L NaF could reduce the negative effect of NaAlO2, made the electrochemical behavior of aluminum alloy basically recover the electrochemical behavior in 4 mol/L NaOH solution.

关 键 词：铝合金 极化 添加剂 碱性电解液 电化学行为 

分 类 号：TM910.4[电气工程—电力电子与电力传动]