Abstract
Abstract Three-dimensionally ordered macroporous (3DOM) materials of polycrystalline spinel- and perovskite-type mixed metal oxide (ZnFe2O4, NiFe2O4, and LaFeO3) could be successfully fabricated using colloidal crystal template method in excellent yield. More than 90% of the obtained materials had the 3DOM structure. The crystallites of the spinel- or perovskite-type mixed iron oxide construct struts, tetrahedral and square prism vertexes. The struts connect the tetrahedral and square prism vertexes to produce inverse opals with skeleton structure in three dimensions.
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