Review Article

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.
412165.fig.009a
(a)
412165.fig.009b
(b)