Preparation and characterization of Al2O3-MgO catalytic supports modified with lithium

► Lithium addition to Al2O3-MgO supports provides textural stability to aged formulations. ► As a higher content of Li in the formulation a greater variety of basic sites are formed. ► Li incorporation in the supports favors a structural change from the γ-Al2O3 crystalline phase to the δ-Al2O3.