稀土元素Sm代替Pb-Ca-Sn合金中的Ca对铅合金在硫酸溶液中的阳极行为的影响  

The Effect of Samarium Replacing Calcium on the Anodic Behavior of Lead Alloy in Sulfuric Acid Solution

作　　者：周彦葆[1] 马敏[1] 张新华[1] 柳厚田[1] 

机构地区：[1]复旦大学化学系,上海200433

出　　处：《复旦学报（自然科学版）》2003年第6期930-934,938,共6页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金资助项目(20173013;29873013)

摘　　要：应用循环伏安法研究Pb Sm Sn和Pb Ca Sn合金电极在4.5mol·dm-3硫酸溶液中和0.6～1.6V(vs.Hg/Hg2SO4)电位范围内的电化学特性,并采用线性电位扫描法和交流伏安法研究了上述合金在相同溶液中分别于0.9和1.28V(vs.Hg/Hg2SO4)生长的阳极膜的性质.结果表明,Sm代替Pb Ca Sn合金中的Ca在0.9和1.28V电位下均可抑制铅合金阳极膜的生长和降低阳极膜的阻抗,并可减少在高阳极电位(1.6V)时氧气的析出.Cyclic voltammograms involving PbO_2/PbSO_4 processes on Pb-Sm-Sn and Pb-Ca-Sn alloy electrodes in 4.5 mol·dm^(-3) H_2SO_4 solution were measured between 0.6 and 1.6 V (vs.Hg/Hg_2SO_4). Furthermore, the anodic behaviors of the above two alloy electrodes at 0.9 and 1.28 V, were also studied using Linear Sweep Voltammetry and A. C. Voltammetry. The results show that Samarium replacing Calcium in lead alloy can inhibit the growth of the anodic films and reduce the resistivity of the anodic films formed at both 0.9 and 1.28 V.

关 键 词：Pb-Sm-Sn合金 Pb-Ca-Sn合金 阳极铅 铅酸蓄电池 稀土元素 铅合金 

分 类 号：TM912.1[电气工程—电力电子与电力传动] O614.337[理学—无机化学]