Fig. 2
From: Efficient upgrading of CO to C3 fuel using asymmetric C-C coupling active sites
Structural and compositional analyses of Ag-doped Cu catalyst. a High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) image taken from a single particle. Scale bar, 20 nm. b Atomic-resolution HAADF-STEM image taken from the edge of a nanoparticle marked by a box in (a). Inset, the corresponding Fourier transfer image. Scale bar, 2 nm. c HAADF-STEM image of an Ag-doped Cu nanoparticle and the corresponding EELS elemental mappings of Cu, Ag, and O. Scale bar, 20 nm. d,e WAXS map (d) and the corresponding sector-average of WAXS map (e) for Ag-doped Cu GDE. f, g High-resolution Cu 2p (f) and Ag 3d (g) spectra of Ag-doped Cu GDE
