Direct evidence of the interaction of Pt with the cobalt oxide phase in the physical
mixture has been obtained with EXAFS [45]. In the Fourier-transformed spectra of
Figure 13.15b, Pt foil is given for reference and is fit by the typical first shell bond
distance of 2.77 Å. The EXAFS spectrum of the reduced CPA/(Co3O4+SiO2) sample