Role of dissolved CO in the solution on the origin of CO pre-oxidation on Pt(1 1 1)-Type electrodes

Elucidating interfacial parameters of platinum–palladium bulk alloy single crystals

“…These pre-oxidation waves have been assigned to the presence of surface defects. 73,74 According to this, the presence of defects on the CO adlayer diminishes with the content of Pd. As mentioned before, the lifting of the reconstruction when the (100) electrodes are immersed in the electrolyte solution leads to the formation of mesas, whose borders act as surface defects.…”