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Topics in Catalysis
Published in: Topics in Catalysis 13-15/2011

01-09-2011 | Original Paper

CO Oxidation Activity of a Au/Ceria-Zirconia Catalyst Prepared by Deposition–Precipitation with Urea

Authors: Eloy del Río, Ginesa Blanco, Sebastián Collins, Miguel López Haro, Xiaowei Chen, Juan José Delgado, José J. Calvino, Serafin Bernal

Published in: Topics in Catalysis | Issue 13-15/2011

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Abstract

The activation of a 2.6 wt% Au/Ce0.62Zr0.38O2 catalyst prepared by deposition–precipitation with urea is investigated. At 298 K, the activity for CO oxidation of the as-prepared sample is very low; it is significantly increased when heated at 418 K, under the reaction mixture, and much strongly when pre-treated under flowing O2(5%)/He, at 523 K. As revealed by XPS, FTIRS, HAADF-STEM, and HRTEM studies, the activation process consists of the transformation of the initial urea-containing Au(III) precursor deposited on the support into a highly dispersed metal phase (Au nano-particle mean size: 1.8 nm).
previous article Effect of Pretreatment on Carbon-Supported Au/TiO2 Catalysts for Preferential Oxidation of CO
next article Catalytic Pyrolysis of Pine Biomass Over H-Beta Zeolite in a Dual-Fluidized Bed Reactor: Effect of Space Velocity on the Yield and Composition of Pyrolysis Products

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Metadata
Title
CO Oxidation Activity of a Au/Ceria-Zirconia Catalyst Prepared by Deposition–Precipitation with Urea
Authors
Eloy del Río
Ginesa Blanco
Sebastián Collins
Miguel López Haro
Xiaowei Chen
Juan José Delgado
José J. Calvino
Serafin Bernal
Publication date
01-09-2011
Publisher
Springer US
Published in
Topics in Catalysis / Issue 13-15/2011
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-011-9711-0

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