Ramírez Reina, TomásMegías Sayago, CristinaPérez Flórez, AlejandroIvanova, SvetlanaCenteno Gallego, Miguel ÁngelOdriozola Gordón, José Antonio2024-01-152024-01-152015-06-01Ramírez Reina, T., Megías Sayago, C., Pérez Flórez, A., Ivanova, S., Centeno Gallego, M.Á. y Odriozola Gordón, J.A. (2015). H2 oxidation as criterion for PrOx catalyst selection: Examples based on Au-CoOx-supported systems. Journal of Catalysis, 326, 161-171. https://doi.org/10.1016/j.jcat.2015.03.015.0021-95171090-2694https://hdl.handle.net/11441/153399A new approach for understanding PrOx reaction over gold catalysts is proposed in this work. The competition between H2 and CO oxidation has been studied over a series of Au/MOx/Al2O3 (M = Ce and Co) catalysts in simulated post-reforming gas stream, containing H2O and CO2 for H2 cleanup goals. The catalysts' behavior is correlated to their oxygen storage capacity, redox behavior, and oxidation ability. The estimation of the reaction rates reveals that in these solids the H2 combustion, the selectivity limiting factor in the PrOx process, is mainly controlled by the support and not by the gold presence. The possible use of the hydrogen oxidation reaction as a catalyst selection criterion is discussed.application/pdf39 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/CO removalGold catalystsH2 oxidationPrOxinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1016/j.jcat.2015.03.015