Studies on the electrocatalytic properties of PtRu/C-TiO2 toward the oxidation of methanol

Abstract PtRu/C-TiO 2 catalysts were prepared by hydrolysis of Ti(OBu) 4 on commercial PtRu/C. The catalyst was characterized by XRD, TEM, and XPS. The electrochemical performance of catalysts was testified by cyclic voltammetry (CV) and chronoamperometry (CA) in 0.5 M C 2 H 5 OH + 0.5 M H 2 SO 4 solution. The results showed that the added TiO 2 can improve the electrocatalytic properties of the catalyst toward methanol oxidation. The mechanism for the effects of TiO 2 on catalytic activity of PtRu/C to methanol oxidation is also discussed.