硫酸水溶液中铅阳极膜形成及其结构的非现场FTIR反射吸收光谱—电化学研究  

EX-SITU FTIR REFLECTION-ABSORPTION SPECTRO-ELECTROCHEMICAL STUDIES OF LEAD ANODIC FILM FORMED IN SULFURIC ACID AQUEOUS SOLUTION

作　　者：张久俊[1] 陆君涛[1] 查全性[1] 冯子刚[2] 

机构地区：[1]武汉大学化学系,武汉430072 [2]武汉大学分析测试中心,武汉430072

出　　处：《无机化学学报》1991年第2期224-228,共5页Chinese Journal of Inorganic Chemistry

摘　　要：本文用非现场红外反射吸收光谱方法和电化学循环伏安法研究了1.0mol·dm^(-3)H_2SO_4中-0.6至2.5伏电势范围内(相对SCE)Pb阳极膜的形成及其可能的结构。在此电势区内Pb阳极膜中始终存在硫酸铅或碱式硫酸铅,其中SO_4^(2-)主要以桥式双齿配位方式与Pb^(2+)结合。另外,上述电势范围内生成的膜中无可检测量的H_2O和OH^-存在。The anodic filmpotential-statically formed on lead electrode in 1.0 mol · dm-3 sulfuric acid aqueous solution was studied using ex-situ FTIR reflection-absorption spectroscopy and cyclic voltametry. Lead sulfate and basic lead sulfates were found to exist while neither H2O nor OH' ions was detected in the anodic film formed in the potential range -0.6 to 2.5 V(vs. SCE). The bridged bidentate coordination mode of SO42- to Pb2+ in the film was proposed based on the FTIR reflection-absorption spectra.

关 键 词：FTIR 铅阳极模 硫酸 电化学 

分 类 号：O646.542[理学—物理化学]