Fig. 2: Synchrotron XAFS and XPS measurements of catalysts.
From: Fully exposed Pt clusters for efficient catalysis of multi-step hydrogenation reactions

a EXAFS Fourier transform (FT) k3-weighted χ(k) function spectra. b, c EXAFS fitting results in R space for Ptn/ND@G and Pt1/ND@G. d–f WT analysis of Ptn/ND@G, Pt1/ND@G, and Pt foil. g Pt L3-edge XANES spectra of Ptn/ND@G and Pt1/ND@G. h, i Pt 4 f XPS spectra of Ptn/ND@G and Pt1/ND@G.