Y. Denkwitz scite author profile

The effect of the pre-treatment temperature and atmosphere on the surface composition and on the activity and stability of well defined Au/CeO 2 catalysts in the low-temperature water-gas shift reaction in dilute water gas was investigated by X-ray photoelectron spectroscopy, kinetic measurements and in-situ IR spectroscopic (DRIFTS) measurements, comparing different reductive and oxidative conditioning procedures. Reductive conditioning at 200°C yields the most active catalyst. Physical origin and consequences of the resulting differences in the reaction behavior are discussed.

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Influence of the crystalline phase and surface area of the TiO2 support on the CO oxidation activity of mesoporous Au/TiO2 catalysts

Denkwitz

Makosch

Geserick

et al. 2009

Applied Catalysis B: Environmental

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Activity, stability and deactivation behavior of Au/CeO2 catalysts in the water gas shift reaction at increased reaction temperature (300°C)

El-Moemen

Karpenko

Denkwitz

et al. 2009

Journal of Power Sources

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Y. Denkwitz

Kinetics, mechanism, and the influence of H2 on the CO oxidation reaction on a Au/TiO2 catalyst

Activity, stability, and deactivation behavior of supported Au/TiO2 catalysts in the CO oxidation and preferential CO oxidation reaction at elevated temperatures

Activity, selectivity, and adsorbed reaction intermediates/reaction side products in the selective methanation of CO in reformate gases on supported Ru catalysts

Influence of CO2 and H2 on the low-temperature water–gas shift reaction on Au/CeO2 catalysts in idealized and realistic reformate

Stability and deactivation of unconditioned Au/TiO2 catalysts during CO oxidation in a near-stoichiometric and O2-rich reaction atmosphere

Low-temperature water-gas shift reaction on Au/CeO2 catalysts – the influence of catalyst pre-treatment on the activity and deactivation in idealized reformate

Influence of the crystalline phase and surface area of the TiO2 support on the CO oxidation activity of mesoporous Au/TiO2 catalysts

Activity, stability and deactivation behavior of Au/CeO2 catalysts in the water gas shift reaction at increased reaction temperature (300°C)

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