LAUSR

CeO2-C(Vulcan) catalyst materials activated with Pt nanoclusters have been synthesized using different methods comprising microwave synthesis, reduction with hydrogen and reduction with NaBH4. The materials have been analyzed using low temperature nitrogen adsorption, X-ray diffraction and scanning electron microscopy with energy-dispersive X-ray spectroscopy methods. Methanol oxidation has been studied using cyclic voltammetry, chronoamperometry and impedance methods. Very noticeable influence of catalyst surface structure and porosity, depending on the complex catalyst preparation conditions, has been demonstrated. High electrochemically active surface area values have been calculated. High current densities of MeOH oxidation have been established for several catalysts. Fitting of the impedance data has been performed, and the results have been discussed. © 2018 The Electrochemical Society. [DOI: 10.1149/2.0781805jes]