Artículos de revistas
Low-temperature Oxidation Of Methane On Pd-sn/zro2 Catalysts
Registro en:
Low-temperature Oxidation Of Methane On Pd-sn/zro2 Catalysts. Elsevier Science Bv, v. 411, p. 117-127 JAN-2016.
1381-1169
WOS:000367420400015
10.1016/j.molcata.2015.08.001
Autor
Lovon-Quintana
Juan J.; Santos
Joao B. O.; Lovon
Adriana S. P.; La-Salvia
Nathalia; Valenca
Gustavo P.
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Pd/ZrO2, Pd-Sn/ZrO2 and Sn/ZrO2 were prepared by incipient wetness using Pd(NO3)(2)center dot XH2O and SnC4H4O6 center dot XH2O as precursors, dried and calcined in static air at 500 degrees C, 800 degrees C or 1100 degrees C. The influence of Sn species in the oxygen storage capacity of the catalysts, distribution of Pd particle sizes and CH4 oxidation reaction were investigated. Pd particle size was larger on Sn-containing catalysts and showed lower mobility than those in the absence of Sn. Sn oxide species act as an oxygen reservoir that are easily transferred to Pd surfaces promoting the oxidation reaction of methane. For Pd-Sn-containing solids calcined at 1100 degrees C, the contribution of Sn in the CH4 oxidation reaction is negligible. (C) 2015 Published by Elsevier B.V. 411
117 127 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)