Influence of Cu2O and CuO to Pd/C Electrocatalytic Activities on Ethanol Electrooxidation in KOH Solution

The influence of Cu2O and CuO to Pd/Celectrocatalytic activities on ethanol electro oxidation in KOHsolution was investigated. Pd/C, Pd-Cu2O/C and Pd-CuO/Cwere synthesized and characterized by powder X-ray diffraction. The electro catalytic activities were studied by Cyclic Voltammetry. The results show that catalytic activity of Pd/C for ethanol in KOH solution can be improved by Cu2Oand CuO. When the ratio of Pd to Cu2O is 1:6 (w:w) and that of Pd to CuO is 1:1 (w:w), Pd-Cu2O/C and Pd-CuO/C show the highest activity for the electro oxidation of ethanol in KOHsolution, respectively.