Synthesis of Pd and Nb–doped TiO2 composite supports and their corresponding Pt–Pd alloy catalysts by a two-step procedure for the oxygen reduction reaction

Abstract

Several Pd–composite Nb0.06Ti0.94O2 materials are synthesized by a two-step procedure, and employed as the Pt–Pd alloy catalyst support for the PEM fuel cell oxygen reduction reaction (ORR). These supports and their supported catalysts are characterized using analytical and electrochemical methods with respect to their material morphology, chemical/electrochemical stability, electronic conductivity as well as oxygen reduction reaction (ORR) …