无机化学学报

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	单位
张久俊	武汉大学化学系, 武汉430072
陆君涛	武汉大学化学系, 武汉430072
查全性	武汉大学化学系, 武汉430072
冯子刚	武汉大学分析测试中心, 武汉430072

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^-3H₂SO₄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SO₄^2-主要以桥式双齿配位方式与Pb²⁺结合.另外,上述电势范围内生成的膜中无可检测量的H₂O和OH^-存在.

关键词: 铅阳极膜的FTIR 铅阳极膜

基金项目:

Abstract: 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 SO₄^2- to Pb²⁺ in the film was proposed based on the FTIR reflection-absorption spectra.

Keywords: FTIR of anodic film on lead anodic film on lead

投稿时间：1988-09-10

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张久俊,陆君涛,查全性,冯子刚.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[J].无机化学学报,1991,7(2):224-228.

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