期刊文献+

Pb在SiO_2胶体电解液中的电化学行为

Study on electrochemical behavior of lead in fumed silica gelled electrolyte
下载PDF
导出
摘要 利用线性电位扫描、恒电位阶跃、交流伏安、交流阻抗等方法研究了Pb在硫酸浓度为39%的SiO2胶体电解液中的电化学行为。结果表明:与硫酸电解液相比,SiO2含量为7%(质量分数)的胶体电解液在纯Pb表面的析氢电位负移187 mV,析氢交换电流密度降低89.7%;在铅的氧化物表面的析氧电位正移17 mV,析氧交换电流密度降低34.5%。同时Pb在SiO2含量为7%的胶体电解液中能够形成一层高阻抗可逆性良好的薄而致密的氧化膜。 The electrochemical behavior of lead in the fumed silica gelled electrolyte with 39 % H2SO4solution was studied by linear potential scan, constant potential steps, AC voltammetry and AC impedance. The results showed that compared with sulfuric acid electrolyte, the hydrogen evolution potential of 7 % fumed silica gelled electrolyte on the surface of pure lead negatively shifts 187 mV, and the hydrogen evolution exchange current density reduces by89.7%;the oxygen evolution potential on the surface of lead oxygen positively shifts17 mV, and the oxygen evolution exchange current density reduces by 34.5%. At the same time, the lead could form a layer of high impedance, good reversibility, thin and dense oxide film in the 7 wt% fumed silica gelled electrolyte.
出处 《电源技术》 CAS CSCD 北大核心 2014年第5期867-870,共4页 Chinese Journal of Power Sources
关键词 PB SIO2 胶体电解液 氧化膜 lead fumed silica gelled electrolyte oxide film
  • 相关文献

参考文献8

二级参考文献42

共引文献55

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部