Tailoring the Pore Size and Architecture of CeO₂/TiO₂ Core/Shell Inverse Opals by Atomic Layer Deposition

Abstract

Core/shell inverse opals are obtained by a multistep preparation process (see picture) involving the synthesis of inverse-opal-structured CeO2 scaffolds and their conformal coating with TiO2 shell layers. The size and shape of the resulting pores can be tailored by modifying the number of atomic layer deposition cycles.