Spillover Phenomena and Its Striking Impacts in Electrocatalysis for Hydrogen and Oxygen Electrode Reactions
Figure 9
Pt 4f XPS core level spectra of Nb2O5-, TiO2-Nb2O5-, TiO2-WO3-, and TiO2-supported Pt catalysts at room temperature: (a) scanned fresh and (b) after aging of one year.