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Au/CeO2-ZnO/Al2O3 as Versatile Catalysts for Oxidation Reactions: Application in Gas/Liquid Environmental Processes

Megías-Sayago, Cristina, Reina, Tomas Ramirez, Ivanova, Svetlana and Odriozola, Jose A. (2019) Au/CeO2-ZnO/Al2O3 as Versatile Catalysts for Oxidation Reactions: Application in Gas/Liquid Environmental Processes Frontiers in Chemistry, 7, 504. pp. 1-10.

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Abstract

The present work showcases the versatility of nanogold systems supported on Zn-doped ceria when applied in two important environmental processes, the total CO oxidation, and the liquid phase oxidation of glucose to gluconic acid. In the CO oxidation the suitability of these materials is clearly demonstrated achieving full conversions even at sub-ambient conditions. Regarding the glucose oxidation our materials display high conversion values (always over 50%) and very importantly full or almost full selectivity toward gluconic acid—an added value platform chemical in the context of biomass upgrading routes. The key factors controlling the successful performance on both reactions are carefully discussed and compared to previous studies in literature. To our knowledge this is one of the very few works in catalysis by gold combining liquid and gas phase reactions and represents a step forward in the flexible behavior of nano gold catalysts.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Megías-Sayago, Cristina
Reina, Tomas Ramirezt.ramirezreina@surrey.ac.uk
Ivanova, Svetlana
Odriozola, Jose A.
Date : 12 July 2019
DOI : 10.3389/fchem.2019.00504
Copyright Disclaimer : © 2019 Megías-Sayago, Reina, Ivanova and Odriozola. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Uncontrolled Keywords : Gold catalysts; CeO2-ZnO/Al2O3 catalysts; CO oxidation; Glucose oxidation; Biomass upgrading
Depositing User : Clive Harris
Date Deposited : 01 Aug 2019 10:47
Last Modified : 01 Aug 2019 10:47
URI: http://epubs.surrey.ac.uk/id/eprint/852339

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