Co₃ O₄ -CeO₂ Nanocomposites for Low-Temperature CO Oxidation.

ABSTRACT: In an effort to combine the favorable catalytic properties of Co₃ O₄ and CeO₂ , nanocomposites with different phase distribution and Co₃ O₄ loading were prepared and employed for CO oxidation. Synthesizing Co₃ O₄ -modified CeO₂ via three different sol-gel based routes, each with 10.4 wt % Co₃ O₄ loading, yielded three different nanocomposite morphologies: CeO₂ -supported Co₃ O₄ layers, intermixed oxides, and homogeneously dispersed Co. The reactivity of the resulting surface oxygen species towards CO were examined by temperature programmed reduction (CO-TPR) and flow reactor kinetic tests. The first morphology exhibited the best performance due to i

SUBMITTER: Yang J 

PROVIDER: S-EPMC9292333 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature