Ce³⁺-enriched spherical porous ceria with an enhanced oxygen storage capacity.

ABSTRACT: Porous ceria was obtained using a unique solvothermal reaction in acetonitrile, applying high temperature and pressure. The resulting material comprised homogeneous and monodisperse spheres and exhibited an extremely large surface area of 152 m² g^-1. From catalytic performance evaluation by vapor- and liquid-phase reactions, the synthesized porous ceria showed superior and different reaction activity compared with commercial CeO₂. To examine the origin of the reaction activity of the present porous ceria, synchrotron hard X-ray photoelectron spectroscopy (HAXPES) measurements were carried out. The systematic study of HAXPES measurements revealed that the obtained porous ceria with the present solvothermal method contained a very high concentration of Ce

SUBMITTER: Taniguchi A 

PROVIDER: S-EPMC8694730 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature