Study of Mesostructured CeO₂ Synthesis via Nanocasting Using SBA-15 as a Template: Influence of the Cerium Precursor.

ABSTRACT: Mesoporous materials with high surface area, large pore volume, and adjustable pore size are promising in the fields of adsorption and heterogeneous catalysis. In this work, ordered mesoporous ceria structures were successfully prepared via nanocasting using SBA-15 as a template, with Ce(NO₃)₃·6H₂O or CeCl₃·7H₂O as ceria precursors. The materials were characterized before and after template removal. The CeO₂ crystallite size in the CeO₂/SBA-15 composites increases with successive impregnations until it reaches the pore size of the SBA-15. Upon removal of the SBA-15 template, the synthesized materials exhibit pore diameters corresponding to the wall thickness of the SBA-15, evidencing that the inverted structure wa

SUBMITTER: Moreno de la Calle A 

PROVIDER: S-EPMC11641326 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature