High electrocatalytic effect of PtAuPd ternary alloy nanoparticles electrodeposited on mercapto ionic liquid film

A PtAuPd ternary alloy nanoparticle film with high particle density and small particle size is fabricated on a novel mercapto ionic liquid film via ultrasonic-electrodeposition, which is characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and cyclic voltammetry. Owing to the excellent poison-tolerance and large effective surface area of the PtAuPd ternary alloy nanoparticles, the resulted composite film coated electrode presents high electrocatalytic activity and stability toward formaldehyde electro-oxidation.