Nanometer-seale thin film of Ni supported on glassy carbon (nm-Ni/GC) was prepared by lectrochemical deposition through cyclic voltammetry (CV). The properties of nm-Ni/GC were tudied by electrochemical in situ FTIR reflection spectroscopy using CO adsorption as probe eaction. It has revealed that the nm-Ni/GC exhibits abnormal infrared effects (AIREs). The tudy has extended the investigation of the AIREs that we have discovered initially on anostructured film materials of platinum group metals and alloys to nanostructured film materials of iron group metals. Nanometer-seale thin film of Ni supported on glassy carbon (nm-Ni / GC) was prepared by lectrochemical deposition through cyclic voltammetry (CV). The properties of nm-Ni / GC were tudied by electrochemical in situ FTIR reflection spectroscopy using CO adsorption It has revealed that the nm-Ni / GC exhibits abnormal infrared effects (AIREs). The tudy has extended the investigation of the AIREs that we have already been on anostructured film materials of platinum group metals and alloys to nanostructured film materials of iron group metals.