研究指出,Fe/0.05mol·L~(-1)HCl体系中引入不同的缓蚀剂有可能产生不同的阴极过程和阳极过程。磁场一般不影响Fe的阳极溶解过程,但在成膜过程中会增大阳极电流密度。磁场也不影响阴极过程中O_2扩散,Sn~(2+)还原、Sn~(2+)扩散、镀Sn层上氢还原等反应,但会影响Fe上氢还原反应。动态分析了缓蚀剂和磁场同时存在下,阴极析氢过程中磁场效应与缓蚀剂效应的交互作用,给出此时覆盖度与磁场作用系数的关系式。
Experiments showed that addition of various inhibitiors to Fe/0.05mol·L-1 HC1 system might result in various cathodic and anodic processes. Magnetic field, in general, did not influence the anodic dissolution processes of iron, but increased the anodic current density in film formation process. Magnetic field also did not influence the following cathodic processes: O2 diffusion, Sn2+ reduction, Sn2+ diffusion and H+ reduction on Sn-plated surface, but influenced H+ reduction on iron. In the presence of both inhibitor and magnetic field, a dynamic analysis of the interaction between the magnetic field effect and the inhibitor effect in the cathodic hydrogen evolution process was carried out, meanwhile, a dependence of the coefficient of magnetic field on the inhibitor coverage was derived.
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