Fig. 2From: Determining the Catalytic Activity of Transition Metal-Doped TiO2 Nanoparticles Using Surface Spectroscopic AnalysisThe Raman spectra of monodisperse 5 mol% TM-TiO2: a anatase TiO2, b Cr-TiO2, c Mn-TiO2, d Fe-TiO2, e Co-TiO2, and f Ni-TiO2 and the corresponding SEM images, respectivelyBack to article page