Pires, F. I. [UNESP]Villullas, Hebe de Las Mercedes [UNESP]2014-05-202014-05-202012-11-01International Journal of Hydrogen Energy. Oxford: Pergamon-Elsevier B.V. Ltd, v. 37, n. 22, p. 17052-17059, 2012.0360-3199http://hdl.handle.net/11449/25548PdM/C nanocatalysts (M = Ni, Fe and Co) were prepared by a polyol method varying nominal composition and reflux time. XRD studies revealed the presence of uniform strain as well as formation of an alloyed PdM phase and small crystallite size (around 2-3 nm). Accelerated stability tests showed that all catalysts prepared in this work are considerably more stable than Pd/C, at the time that demonstrated that stability depends on the second metal and follows the order PdNi > PdFe > PdCo. Studies of the oxygen reduction reaction showed that for each second metal the material with nominal composition Pd:M 70:30 prepared with reflux time of 30 min was the most active, following the order PdFe/C > PdCo > PdNi. The study of methanol tolerance showed that all the samples are inactive for methanol oxidation. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.17052-17059engPd-based electrocatalystsPd alloysStabilityOxygen reductionArtigo10.1016/j.ijhydene.2012.08.102WOS:000311188500034Acesso restrito0967996519065806