One-pot mesoporous Al–Ce–Cu oxide systems as catalysts for the preferential carbon monoxide oxidation (CO-PROX)

A series of organized mesoporous Al–Ce–Cu oxide systems, synthesized by a single-step method using aluminum sec-butoxide as Al precursor and Cu and Ce stearates and/or nitrates as metal sources, have been comparatively studied to evaluate the influence of some of the preparation parameters on their catalytic behavior in the preferential oxidation of CO (CO-PROX) to CO2 in H2-rich gas streams. The catalytic activity was tested in the 40–190 °C temperature range.