Linfang Lu, Wenya Liang, Yongkang Sun, Ruhua Cui, Hong Sun, Jie Fan
Well-defined PtCuAg@PtCu core-shell nanodendrites featuring a Ag-enriched core and a PtCu-rich shell were synthesized via a one-pot route, delivering a mass activity of 25.26 A mgPt-1 for alkaline methanol oxidation. In situ electrochemical infrared spectroscopy revealed earlier CO2 formation and suppressed HCOO- accumulation, affording 86.5% CO2 selectivity at 0.80 V.