fig1
From: Efficient selective hydrogenation of phenylacetylene over Pd-based rare earth dual-atomic catalysts
Figure 1. The characterizations of 0.02%Pd-Y/C. (A) Aberration-corrected HAADF-STEM images of 0.02%Pd-Y/C DAC (Pd-Y diatomic structures are emphasized by the yellow ovals, and Pd or Y single-atoms are marked with white circles); (B) TEM image and the EDS mappings of 0.02%Pd-Y/C DAC; (C) enlarged images of Pd-Y diatomic pairs; (D) statistical Pd-Y distance in the observed diatomic pairs; and (E) intensity distribution of ovals 1, 2, and 3 in image (C). HAADF-STEM: High-angle annular dark-field scanning transmission electron microscopy; DAC: diatomic catalyst; TEM: transmission electron microscopy; EDS: energy dispersive X-ray spectroscopy.
