Fig. 2: Spectroscopic characterizations.
From: Regulating Au coverage for the direct oxidation of methane to methanol
a XPS spectra of Pd 3d for Pd NS and PdxAuy NS. b XPS spectra of Au 4 f for Au NS and PdxAuy NS. c, d The K2-weighted and Fourier-transformed magnitudes of EXAFS spectra of the Pd K-edge and Au L3-edge. e Plots of intermetallic bond length versus Pd/Au ratio. f Plots of the coordination number of connected metals versus Pd/Au ratio.
