Fig. 4: Morphological and structural characterizations of D-Ag/C catalyst.
From: Electro-activated indigos intensify ampere-level CO2 reduction to CO on silver catalysts

a HAADF-STEM and STEM-EDS mapping of the D-Ag/C catalyst showing isolated Ag particles on carbon support. b HRTEM image of the D-Ag/C catalyst showing abundant planar defects (denoted by arrows). c, d XANES data (c) and Fourier transform magnitudes of the k2-weighted EXAFS spectra (d) at the Ag K-edge of AgNP and D-Ag/C. The spectra of Ag foil were shown as a reference. e The Ag−Ag coordination numbers obtained by theoretical fits to the EXAFS data. Source data are provided as a Source Data file.