O/W/O double emulsion-assisted synthesis and catalytic properties of CeO2 hollow microspheres

CeO2 hollow microspheres have been fabricated through a simple thermal decomposition of precursor approach. The precursor with an average size of 10aaI14m was prepared in a reverse microemulsions containing Ce(NO3)3A.6H2O and CO(NH2)2 at 160aaA degree C. The products were characterized by X-ray powd...

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Published inSolid state sciences Vol. 12; no. 9; pp. 1529 - 1533
Main Authors Zhang, DongEn, Xie, Qing, Wang, MingYan, Zhang, XiaoBo, Li, ShanZhong, Han, GuiQuan, Ying, AiLing, Chen, AiMei, Gong, JunYan, Tong, ZhiWei
Format Journal Article
LanguageEnglish
Published Issy-les-Moulineaux Elsevier Masson 01.09.2010
Subjects
Catalysis
Catalysts
Catalysts: preparations and properties
Chemistry
Cross-disciplinary physics: materials science; rheology
Diffraction
Electrodes
Exact sciences and technology
General and physical chemistry
Glassy carbon
Materials science
Materials synthesis; materials processing
Microspheres
Physics
Precursors
Scanning electron microscopy
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Thermal decomposition
Scanning electron microscopy
Thermal decomposition
Thermogravimetry
Glass
Carbon electrode
SAED
Catalytic property
Cerium oxide
Perchlorates
CeO
X ray diffraction
Precursor
Hollow sphere
Hollow shape
Emulsion
Transmission electron microscopy
Synthesis
Hollow microsphere
Microemulsion
Methyl orange
Catalyst activity
Formation mechanism
Glassy state
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Summary:CeO2 hollow microspheres have been fabricated through a simple thermal decomposition of precursor approach. The precursor with an average size of 10aaI14m was prepared in a reverse microemulsions containing Ce(NO3)3A.6H2O and CO(NH2)2 at 160aaA degree C. The products were characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM), selected area electron diffraction (SAED) and scanning electron microscopy (SEM). The possible formation mechanism of hollow spheres was discussed. In addition, the CeO2 hollow microspheres modified glassy carbon electrode exhibit excellent sensing performance towards methyl orange, which provide a new application of CeO2 hollow spheres. The catalytic activity of CeO2 hollow spheres on the thermal decomposition of ammonium perchlorate (AP) also was investigated by TGA. The catalytic performance of CeO2 hollow spheres is superior to that of commercial CeO2 powder. Display Omitted
Bibliography:ObjectType-Article-2
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ISSN:1293-2558
1873-3085
DOI:10.1016/j.solidstatesciences.2010.05.011