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High thermally stable mesoporous alumina doped with lanthanum was synthesized using inorganic nitrates as precursors and employing pluronic P123 (P123, (EO 20 PO 70 EO 20 , EO=ethylene oxide, PO=propylene oxide)) as a structure-directing agent. After calcination at 400 °C, the resultant lanthanum doped alumina exhibited a γ-Al 2 O 3 phase, which was the same...
Highly thermally stable lanthanum-doped ordered mesoporous alumina has been prepared in a sol–gel system with salicylic acid and citric acid as interfacial protectors. When the molar ratio of alumina to lanthanum is 25.5, most La 3+ ions in the resulting alumina structure showed tetracoordination. Moreover, the as-obtained sample exhibits a surface area of 305m 2 g −1 when...
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