Electrocatalytic activity of PdNi/C catalysts for allyl alcohol oxidation in alkaline solution

摘要

The electrocatalytic oxidation of allyl alcohol on Pd/C and Pd_xNi_y/C catalysts in alkaline solution has been investigated. The Pd_xNi_y/C catalysts were prepared by chemical co-deposition of palladium and nickel and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive X-ray spectrometer (EDX). The results of cyclic voltammetric and chronoamperometric measurements show that the Pd_xNi_y/C catalysts exhibit enhanced electrocatalytic activity and stability for the oxidation of allyl alcohol and that in a wide range of the x:y ratios the Pd_xNi_y/C catalysts exhibit no much difference in activity in terms of per unit mass of palladium. The results of this study reveal that the addition of nickel to palladium leads to an improvement in the electrocatalytic activity and stability of the palladium and that the Pd_xNi_y/C catalysts are effective for the oxidation of allyl alcohol in alkaline solution.