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- W2007180454 abstract "Abstract The present research is aimed to study the oxygen reduction reaction (ORR) on a PdCu electrocatalyst synthesized through reduction of PdCl2 and CuCl with NaBH4 in a THF solution. Characterization of PdCu electrocatalyst was performed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) spectroscopy. Characterization results showed that the synthesis method produced spherical agglomerated nanocrystalline PdCu particles of about 10 nm size. The electrochemical activity was evaluated using cyclic voltammetry (CV), rotating disc electrode (RDE) and electrochemical impedance spectroscopy (EIS) in a 0.5 M H2SO4 electrolyte at 25 °C. The onset potential for ORR on PdCu is shifted by ca. 30 mV to more positive values and enhanced catalytic current densities were observed, compared to that of pure Pd catalyst. The synthesized PdCu electrocatalyst dispersed on a carbon black support was tested as cathode electrode in a membrane–electrode assembly (MEA) achieving a power density of 150 mW cm−2 at 0.38 V and 80 °C." @default.
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- W2007180454 date "2011-05-01" @default.
- W2007180454 modified "2023-09-26" @default.
- W2007180454 title "Electrocatalytic reduction of dioxygen on PdCu for polymer electrolyte membrane fuel cells" @default.
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- W2007180454 doi "https://doi.org/10.1016/j.jpowsour.2011.01.050" @default.
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