Pb/PbO/PbSO_4电极在硫酸溶液中的还原  

The Reduction of Pb/PbO/PbSO_4 Electrode in Sulfuric Acid Solution

作　　者：翟和生[1] 尤金跨[1] 林祖赓[1] 

机构地区：[1]厦门大学测试中心,厦门大学化学系

出　　处：《厦门大学学报（自然科学版）》1998年第1期70-74,共5页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金

摘　　要：采用阴极线性电位扫描法、实时交流阻抗测量及光电子能谱等研究Ｐｂ／ＰｂＯ／ＰｂＳＯ４电极在硫酸溶液中的阴极还原过程．结果表明，ＰｂＯ还原峰的峰电位随氧化时间的增加而负移，ＰｂＯ在还原时分为两个阶段即ｏ－ＰｂＯ和ｔ－ＰｂＯ的还原，ＰｂＯ还原发生在ＰｂＯ与基底Ｐｂ的界面．The cathodic reduction of Pb/PbO/PbSO_4 electrode in sulfuric acid solution has been investigated by using cathodic linear sweep voltammetry, temporary resistance measurement and photoelectron spectroscopy. The results show that the potential of the reduction peak of PbO to Pb changes more negative when the time of anodic polarization is prolonged. There are two steps which represent the reductions of oPbO and tPbO respectively during the reduction of PbO. The reduction of PbO takes place in the interface between PbO and the Pb substrate.

关 键 词：电极 阴极还原 铅 硫酸 氧化铅 硫酸铅 

分 类 号：O646.541[理学—物理化学]