【摘要】 本文对碘化钠-碘浓溶液体系中碘离子阳极氧化扩散电流的性质进行了研究.指出在这种体系中,阳极扩散电流不由碘离子向阳极的扩散速度所控制,而是由阳极电解产物碘由电极表面向溶液中的扩散所控制;其极限扩散电流密度与本文中定义的碘的未饱和度△m_I2,max成正比,后者是一个与通常所指的碘的不饱和度在意义和数值上都不相同的物理量.更多还原

【Abstract】 The characteristics of diffusion currents of anodic reaction of iodide ions in concentrated iodine-iodide solutions have been studied, using a rotating disk electrode. It is found that the anodic diffusion currents are not controlled by the diffusion of iodide ions toward the electrode, but by that of the product iodine from the electrode to the solution. The diffusion limiting current densities are directly proportional to the △m_I2,max, which is defined as unsaturated extent of iodine, and it is different in the definition and the value from the usual degree of unsaturation of iodine in the electrolyte solution.更多还原