Fig. 5. XPS spectra (black lines) of the modified electrodes CVAu|Cu(DAT), CAAu|Cu(DAT), CatAu|Cu(DAT), PG|Cu(DAT) and the reference compounds Cu(DAT), Cu(OTf)2 and Vulcan|Cu(DAT). (a) Shows the Cu 2p region of the spectra and (b) shows the Cu L3M4,5M4,5 Auger spectra. In grey, the deconvolution of the Cu 2p3/2 region is depicted.
