The effect of the voltage window on Pt dissolution as well as on the dissolution of the less noble metal in the case of Pt-alloys is already well documented. However, most of the existing studies focus on the understanding of the changes in UPL of 1.0 V or above (in other words, understanding what happens if we Pt is more significantly oxidized). On the other hand, understanding the changes in LVL , especially at UVLs below 1.0 V, is perhaps similarly to the electrocatalyst activation, vastly underestimated and understudied . Considering that the fuel cell stack will operate for the vast majority of its time within a voltage window of around (0.6-0.95) V, understanding the mechanism of Pt and Pt-alloy degradation in this regime is in-fact critical.