Shaping of Porous CeO₂ Powders into Highly Active Catalyst Carriers.

ABSTRACT: CeO₂ is attracting more and more attention because of its outstanding performance in heterogeneous catalysis, as an active support and a reaction promoter in reactions of industrial interest. We herein describe a novel and scalable manufacturing process of mm-sized CeO₂ spheres by a combination of extrusion and spheronization of CeO₂ porous powders. In this study, wet paste formulation and fabrication procedures were optimized, and as a result methylcellulose was identified as the best plasticizer for paste extrusion to provide well-defined spherical shapes and smooth surfaces, as well as reproducible batches. After nickel impregnation (10 wt %), the catalytic performance of CeO₂ supports was evaluated in the CO₂ methanation reaction (

SUBMITTER: Martin Morales E 

PROVIDER: S-EPMC10153443 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature