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WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO CeO2 vs. CuO CeO2/Al2O3 with low mixed oxide content”

Ramirez Reina, T, Ivanova, S, Laguna, OH, Centeno, MA and Odriozola, JA (2016) WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO CeO2 vs. CuO CeO2/Al2O3 with low mixed oxide content” Applied Catalysis B: Environmental, 1697. pp. 62-7.

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Abstract

A copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. The principal characteristics of both types of catalysts are contemplated and the differences in their electronic and redox properties discussed in details. As a plus, the gold metal promotion of the catalysts is also envisaged. The advantages of the systems in the CO clean up reactions, WGS and CO-PrOx are commented. While the WGS activity appears to be ruled especially by the Cu/Ce surface to volume ratio, the CO-PrOx reaction is governed by the CuO loading. Gold addition provides benefits only at the low temperature WGS regime. Very importantly, the supported systems are always superior to the bulk configuration in terms of specific activity, a key factor from the catalyst’s design perspective.

Item Type: Article
Subjects : Chemical and Process Engineering
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
AuthorsEmailORCID
Ramirez Reina, TUNSPECIFIEDUNSPECIFIED
Ivanova, SUNSPECIFIEDUNSPECIFIED
Laguna, OHUNSPECIFIEDUNSPECIFIED
Centeno, MAUNSPECIFIEDUNSPECIFIED
Odriozola, JAUNSPECIFIEDUNSPECIFIED
Date : 10 March 2016
Identification Number : https://doi.org/10.1016/j.apcatb.2016.03.022
Copyright Disclaimer : © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Depositing User : Symplectic Elements
Date Deposited : 26 Oct 2016 12:13
Last Modified : 10 Mar 2017 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/812507

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