Fig. 2: Schematic preparation procedure and structural characterizations.
From: Photocatalytic non-oxidative dehydrogenation of ethane to ethene with near unit selectivity
a HAADF-STEM image of T-Ni0.6Pd0.24, where Ni atoms are marked by red circles. The inserted diagram presents the line scan measured along the blue rectangle region marked in (a). b, c, d, e, f, g, (b–g) HAADF and EDX mapping images of T-Ni0.6Pd0.24. Yellow, blue, green, and red colors represent Ti (c), O (d), Ni (e), and Pd (f) elements, respectively. h, k3-weighted Ni-K-edge EXAFS Fourier transformation spectrum of T-Ni0.6Pd0.24 (inset, local geometric structure of isolated Ni atoms grafted on the surface of TiO2 NPs). The gray ball represents terminal oxygen (O1), while the red balls represent lattice oxygen (O2), including surface bridging oxygen. The green ball represents coordinated oxygen in three water molecules (O3). i, k3-weighted Pd-K-edge EXAFS Fourier transformation spectrum of T-Ni0.6Pd0.24 (inset, structural model of Pd NPs photo-deposited on the surface of TiO2 NPs). Source data are provided with this paper.
