Fig. 3: Structural characterizations of catalysts.
From: Electrosynthesis of NH3 from low-concentration NO on cascade dual-site catalysts in neutral media
HAADF-STEM images of (a) FeSAC and (b, c) PtNPs/FeSAC. d EDX mapping images of PtNPs/FeSAC. e Fe K-edge XANES spectra of Fe foil, FePc, Fe2O3, FeSAC and PtNPs/FeSAC. f FT-EXAFS spectra at Fe K-edge. g XPS spectrum of PtNPs/FeSAC in Pt 4 f region. Source data are provided as a Source Data file.
