Sn2+对Pb及Pb-Ca-Sn-Al电极在硫酸中性能的影响

摘要

The electrochemical performance of Pb and Pb-Ca-Sn-Al electrodes in sulfuric acid with or without Sn2+ was studied by cyclic voltammetry, linear sweep voltammetry and electrochemical impedance spectroscopy methods. The addition of Sn2+ improved the anti-corrosion performance and conductivity of Pb and Pb-Ca-Sn-Al electrodes, the reduction peak currents of Pb( Ⅱ ) basic compounds decreased to 1/10 and 1/5,respectively.%用循环伏安、线性扫描伏安和交流阻抗法研究了Pb和Pb-Ca-Sn-Al电极在含与不合Sn2+的硫酸中的电化学性能.添加Sn2+,提高了Pb和Pb-Ca-Sn-Al电极在硫酸中的抗腐蚀性和导电性能,Pb(Ⅱ)碱性化合物还原峰的电流分别减小至约1/10和1/5.