In this investigation, a Pt-Au nanocatalyst prepared by the coelectrodeposition of Pt (PtNPs) and Au (AuNPs) nanoparticles is assembled onto a glassy carbon (GC) electrode for efficient methanol oxidation (MO). Several molar ratios between PtNPs and AuNPs have been used and the corresponding catalytic activity towards MO is tracked. The Pt1:Au1 catalyst showed the highest catalytic activity (5 times higher oxidation peak current (Ip) and a 126 mV negative shift in the onset potential (Eonset) toward MO). The catalyst’s morphology, composition and activity are investigated and the ehancement mechanism is recognized.
Al-Akraa, Islam M. Dr.; Asal, Yaser M. Mr; and Mohammad, Ahmad M. Prof, "Enhanced Electro-Oxidation of Methanol at Pt-Au Nanocatalyst for Direct Methanol Fuel Cells" (2019). Chemical Engineering. 69.