Silica, alumina and ceria supported Au-Cu nanoparticles prepared via the decomposition of [Au(en)(2)](2)[Cu(C2O4)(2)](3)center dot 8H(2)O single-source precursor: Synthesis, characterization and catalytic performance in CO PROX

Potemkin DI; Semitut EY; Shubin YV; Plyusnin PE; Snytnikov PV; Makotchenko EV; Osadchii DY; Svintsitskiy DA; Venyaminov SA; Korenev SV; Sobyanin VA

Catalysis Today, Vol.235, 103-111, 2014

DOI10.1016/j.cattod.2014.04.026 Export Citation

Silica, alumina and ceria supported Au-Cu nanoparticles prepared via the decomposition of [Au(en)(2)](2)[Cu(C2O4)(2)](3)center dot 8H(2)O single-source precursor: Synthesis, characterization and catalytic performance in CO PROX

Potemkin DI, Semitut EY, Shubin YV, Plyusnin PE, Snytnikov PV, Makotchenko EV, Osadchii DY, Svintsitskiy DA, Venyaminov SA, Korenev SV, Sobyanin VA

Silica, alumina and ceria supported bimetallic Au-Cu catalysts were prepared via the decomposition of [Au(en)(2)](2) [Cu(C2O4)(2)](3)center dot 8H(2)O double complex salt inside the support pore structure. XRD and TEM analyses indicated the selective formation of supported Au0.4Cu0.6 alloy nanoparticles with preset stoichiometry on the support surface. Catalysts were tested in CO preferential oxidation (PROX) reaction. Au0.4Cu0.6/CeO2 catalyst showed best characteristics having higher CO consumption at higher selectivity in the realistic hydrogen-rich mixture containing CO2 and H2O, compared with Au/CeO2 catalyst. (C) 2014 Elsevier B.V. All rights reserved.

Keywords:Bimetallic nanoparticles;Alloy nanoparticles;Au-Cu catalysts;Gold-copper catalysts;Double complex salts;Preferential CO oxidation