Investigation of anodic passivity of Ni

摘要: Abstract The anodic passivity of Ni in 1N H 2 SO 4 has been investigated by impedance measurementsof the system passive Ni-electrolyte solution. Using bridge method was experimentally determined as a series combination R and C components at frequencies from 20–31,000 Hz. From these results complex nature layer may be concluded. We tried to apply Scholte-van Geel Young's analysis, but many difficulties arose. It is interesting note that, formal application methods, even negative elements resistance ( i ) were obtained means computer calculations. analysis dielectric constant also performed. points presence relaxation phenomena enables understanding experimentally.