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Fe在NaHCO3 稀溶液中出现Ⅰ、Ⅱ两处阳极电流峰 ,分别对应电极 /溶液界面形成的较低价态Fe化合物与较高价态Fe化合物对Fe溶解的抑制作用 .单一磁场使电流峰值Ⅰ、Ⅱ处对应的电位正移、电流密度增大 ,还使钝化区起始电位正移 ,但对维钝电流密度以及过钝化电位影响较小 .单一Cl-或Br-对峰Ⅰ电位与电流密度影响较小 ,但使峰Ⅱ电流密度及维钝电流密度显著增大 ,且使过钝化电位大幅度负移 .磁场与Cl-或Br-共同作用时峰Ⅰ、峰Ⅱ及钝化区起始电位正移 ,峰Ⅰ、峰Ⅱ以及维钝电流密度均增加 ,过钝化电位负移 .Cl-与Br-浓度达 0 0 1mol/L时 ,外加磁场后阳极电流随电位变正而上升 ,无电流峰与钝化
Fe in NaHCO3 dilute solution appeared Ⅰ, Ⅱ anode current peak, respectively, corresponding to the electrode / solution interface formed by the lower valence state Fe compound and the higher valence state Fe compound on the dissolution of Fe single magnetic field so that the current peak Ⅰ, Ⅱ potential corresponding to the positive shift, the current density increases, but also to the passivation zone positive potential shift, but the dimension of the blunt current density and passivation potential less single Cl- or Br-on peak Ⅰ potential and But the peak current density and the blunted current density significantly increased, and the over-passivation potential was greatly negatively shifted.When the magnetic field interacted with Cl- or Br-, the peak I, peak II and passivation When the concentration of Cl- and Br- reached 0 0 1mol / L, the anodic current increased with the increase of potential after the applied magnetic field Rise, no current peaks and passivation