Figure 2.

XPS spectra of (a) 1.2% Ce-TiO2coating and (b) Ce 3d region for 1.2% Ce-TiO2coating. KLL and MNN are the Auger group for O and Ce, respectively.

Li et al. Nanoscale Research Letters 2012 7:227   doi:10.1186/1556-276X-7-227
Download authors' original image