Structural Characterization of the Catalyst.
(A and B) TEM images of TiO2/Pt/50TiO2/Ni/TiO2.
(C and D) TEM image of the cross-sectional slice of TiO2/Pt/10TiO2/Ni/TiO2 prepared by focused ion beam milling and the corresponding area for the EELS line scan.
(E) Selected Ti-L-edge EELS spectra recorded at positions 1–7 in (D).
(F) STEM image and STEM-EDX element mapping of the Ni-L-, Ti-L-, and Pt-L-edges of TiO2/Pt/50TiO2/Ni/TiO2.