Hierarchical Structure and Catalytic Activity of Flower-Like CeO(2) Spheres Prepared Via a Hydrothermal Method

Hierarchical CeO(2) particles were synthesized by a hydrothermal method based on the reaction between CeCl(3)·7H(2)O and PVP at 270 °C. The flower-like CeO(2) with an average diameter of about 1 μm is composed of compact nanosheets with thicknesses of about 15 nm and have a surface area of 36.8 m(2)...

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Detalles Bibliográficos
Autores principales: Shen, Genli, Liu, Mi, Wang, Zhen, Wang, Qi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6215204/
https://www.ncbi.nlm.nih.gov/pubmed/30274299
http://dx.doi.org/10.3390/nano8100773
Descripción
Sumario:Hierarchical CeO(2) particles were synthesized by a hydrothermal method based on the reaction between CeCl(3)·7H(2)O and PVP at 270 °C. The flower-like CeO(2) with an average diameter of about 1 μm is composed of compact nanosheets with thicknesses of about 15 nm and have a surface area of 36.8 m(2)/g, a large pore volume of 0.109 cm(3)/g, and a narrow pore size distribution (14.9 nm in diameter). The possible formation mechanism of the hierarchical CeO(2) nanoparticles has been illustrated. The 3D hierarchical structured CeO(2) exhibited a higher catalytic activity toward CO oxidation compared with commercial CeO(2).

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