Fig. 3: Electronic properties of Au@Pd core-shell catalysts.
From: Conjugated dual size effect of core-shell particles synergizes bimetallic catalysis

a XPS spectra of Aux@yML-Pd bimetallic catalysts and 4.6 nm-Pd in the Pd 3d and Au 4d regions. b Plots of the shifts of Pd 3d5/2 binding energy as a function of Pd coverage in the four sets of Aux@yML-Pd catalysts normalized to that of bulk Pd. c DRIFT spectra of CO chemisorption on Aux@yML-Pd catalysts at saturation coverage.