Abstract
Novel one-step high vacuum nanocasting method is developed to prepare ordered mesoporous rare earth and transition metal oxides with high-surface area using mesoporous KIT-6 as hard templates. Characterization of these mesostructured materials was performed by the X-ray powder diffraction, high resolution transmission electron microscopy and N2 adsorption–desorption isotherms. In this synthesis method, metal oxide precursors are effectively filled into the channels of hard templates by a one-step high vacuum impregnation, and the excess precursors can be removed through vacuum filtration. It is a very effective nanocasting method and has the wider application in the preparation of mesoporous metal oxides with high surface area and high purity.
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