title: CeO₂-Co₃O₄/CuO Catalysts with Chrysanthemum-Like Morphology for Preferential CO Oxidation.
abstract: Inverse CeO₂-Co₃O₄/CuO catalysts with chrysanthemum-like morphology were prepared by the co-precipitation method, and characterized via scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), temperature-programmed reduction (H2-TPR), and N2 adsorption-desorption techniques. It is found that the filament is composed of ordered-array CuO nanocrystallites, and CeO₂ was dispersed on the outer surface of filament. The CeO₂-Co₃O₄/CuO catalyst with thin filaments can form the long periphery at the CeO₂-CuO contact interface and improve catalytic performance. Therefore, the CAT-350 catalyst with the thinnest filaments presents the highest catalytic activity among the as-prepared catalysts.
authors.forename: Shang H
authors.initials: SH
authors.lastname: Zeng
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Yue
authors.initials: Y
authors.lastname: Fei
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.forename: Su P
authors.initials: SP
authors.lastname: Ding
authors.forename: Hai Q
authors.initials: HQ
authors.lastname: Su