Highly Stable and Active Pt/Nb-TiO2 Carbon-Free Electrocatalyst for Proton Exchange Membrane Fuel Cells
Figure 5
(a) CV curves and (b) polarization curves for O2 reduction on commercial ETEK Pt/C catalyst and Nb-doped TiO2 with different Pt NP loadings in a 0.1 M HClO4 solution on a disk electrode.
