Figure 4
From: Stellated Ag-Pt bimetallic nanoparticles: An effective platform for catalytic activity tuning
Electrochemical measurements.
Cyclic voltammograms of SPNPs-A, SPNPs-H and E-TEK Pt/C in argon-purged HClO4 (0.1 M) at 50 mV/s (a); Histogram of the ECSAs for SPNPs-A, SPNPs-H and E-TEK Pt/C (b); Cyclic voltammograms of SPNPs-A, SPNPs-H and E-TEK Pt/C in argon-purged HClO4 (0.1 M) with 1 M methanol at 20 mV/s (c); Histogram of peak current densities of SPNPs-A, SPNPs-H and E-TEK Pt/C due to MOR in the forward and reverse scans (d); ORR polarization curves for SPNPs-A, SPNPs-H and E-TEK Pt/C catalysts in an O2-saturated HClO4 solution (0.1 M) at 20 mV/s and a rotating speed of 1600 rpm (e); Histogram of half-wave potentials of SPNPs-A, SPNPs-H and E-TEK Pt/C in the ORR polarization curves (f).
