Microwave Assisted Synthesis of Osmium Electrocatalysts for the Oxygen Reduction Reaction in the Absence and Presence of Aqueous Methanol
Figure 4
Cyclic voltammograms in the absence and presence of 2 mol L−1 methanol of the osmium catalysts synthesized at (a) 180°C/30 min/80 watts; (b) 180°C/30 min/100 watts; (c) 180°C/60 min/100 watts; (d) 30% Pt/Vulcan XC-72. The electrolyte was 0.5 mol L−1 and the sweep rate 20 mV/s for the osmium electrocatalysts and 50 mV/s for Pt.