利用电化学和全息显微摄影技术研究弱磁场(B≤200mT)作用下,0.5mol.dm-3H2SO4溶液中铁的阳极溶解、恒电位电流振荡以及钝化铁再活化等过程,并从电极/溶液界面现场显微动态观察的角度探讨了磁场对上述过程的影响.磁场的存在主要通过增加液相传质速度影响电化学过程.外加磁场对铁的活化溶解没有明显的影响,但加快了预钝化区铁的溶解,从而显著改变铁的电化学振荡行为;钝化铁再活化过程主要取决于电极电位,与外加磁场没有关系;研究表明全息显微术是磁电化学研究中一种十分有效的方法.
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