Synthesis of mesoporous ceria using metal- and halogen-free ordered mesoporous carbon as a hard template.

ABSTRACT: Ordered mesoporous cerias were synthesised by employing metal- and halogen-free ordered mesoporous carbons (OMCs) as the hard templates in a 'nanocasting' procedure. TEM, small angle (SA) and wide angle (WA) XRD, and N₂ physisorption analyses were used to characterise the templates, intermediates and ceria products and electron tomography (STEM-HAADF) was used to explore the 3D morphology of the ceria nanostructures grown within the carbon templates. This allowed the relationships between the structures of the OMC templates and the products to be considered in detail as two parameters were varied. These were: the method of impregnation of the ceria precursor; and the temperature of calcination of the OMC template. Of the four impregnation methods tested, the solid-liquid method

SUBMITTER: Sakina F 

PROVIDER: S-EPMC9418743 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature