Ethanol oxidation of palladium supported on TiOlt;subgt;2lt;/subgt;Nanoparticle

Abstract

In this paper, TONPs powder (titanium oxide nanoparticles powder) is prepared by anodization in 0.7 M HClO4is annealed in N2 at 450°C for 3 h to obtain the TONPs-N2 powder as catalyst support to which Pdis loaded by photodeposition technique using PdCl2 and isopropanol as sacrificial donor. The resulting Pd-TONPs-N2 powder catalyst exhibits high surface area of 98m2/g. The catalyst support TONPs arrays powder are electrochemically characterized in basic solution of ethanol by cyclic voltammetry (CV), and chronoamperometry measurements. Pd-TONPs-N2 powder electrode catalyst exhibits a remarkably high electrocatalytic activity and has high electrocatalytic stability for ethanol electrocatalytic oxidation reaction. Pd supported on the conductive support TONPs-N2 is used as electro catalyst in fuel cells.