Fig. 2: Synchrotron XAFS measurements of catalysts.
From: Fully-exposed Pt-Fe cluster for efficient preferential oxidation of CO towards hydrogen purification

a XANES and c FT-EXAFS spectra at the Pt L3-edge (without phase correction) of the 0.75Pt/ND@G and 0.75Pt0.2Fe/ND@G; b XANES spectra and d FT-EXAFS at the Fe K-edge of the 0.2Fe/ND@G and 0.75Pt0.2Fe/ND@G. e, f The corresponding Pt L3-edge and Fe K-edge EXAFS fitting curves for 0.75Pt0.2Fe/ND@G catalyst at R-space, respectively. g Fe K-edge WT-EXAFS of 0.2Fe/ND@G, 0.75Pt0.2Fe/ND@G and the references samples.