Реферат: The catalytic activity and CO tolerance of the carbon-supported PdAu nanoparticles with a high dispersion and various surface compositions prepared by two different synthetic strategies were studied in hydrogen electrooxidation reaction (HOR). The PdAu/C catalysts with controlled surface composition of the bimetallic sites prepared by selective electrodeposition of Pd on preimmobilized Au particles (a model approach) proved to be a valid and convenient tool for determination of the surface composition of PdAu nanoparticles providing the maximum catalyst activity in HOR and CO tolerance. The PdAu/C catalysts prepared by impregnation of the Au/C substrate with Pd(II) nitrate solution followed heat treatments for obtaining the proper Pd-Au alloying (a pragmatic approach) showed the significantly higher HOR current densities compared to Pd-electroplated Au catalysts with similar surface Pd:Au composition. The catalysts containing the alloy Pd-Au particles of optimal surface composition are promising for application at the anodes of polymer-electrolyte membrane fuel cells

Библиографическая ссылка: Pyrjaev P.A. , Simonov A.N. , Moroz B.L. , Zyuzin D.A. , Kuznetsov A.N. , Prosvirin I.P. , Bukhtiyarov V.I.
Bimetallic Catalysts Containing Palladium and Gold on Carbon Support for Hydrogen Electrooxidation: From Au Particles Coated with Submonolayers of Pd to Pd-Au Nanoalloys
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015