Synthesis of morphology-controllable mesoporous Co{sub 3}O{sub 4} and CeO{sub 2}

Journal Article · Sun Feb 14 23:00:00 EST 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.11.009· OSTI ID:21372479

Yangang, Wang ^[1]; Jiawen, Ren; Yan, Mi; Fengyuan, Zhang; Changlin, Li; Xiaohui, Liu; Yun, Guo; Yanglong, Guo ^[1]

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1. Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237 (China)

Recently, extensive works have been devoted to the morphology control of mesoporous materials with respect to their use in various applications. In this paper, we used two kinds of mesoporous silica, SBA-15 rods and spheres as hard templates to synthesize morphology-controllable mesoporous metal oxides. By carefully controlling the loading of metal precursors in the mesopores of the hard template, mesoporous Co{sub 3}O{sub 4} and CeO{sub 2} with different morphologies, such as micrometer-sized rod, hollow sphere, saucer-like sphere, and solid sphere were conveniently obtained. The structural properties of these materials were characterized by XRD, BET, SEM and TEM. In addition, it is found that the differences observed in the textural properties of the two mesoporous metal oxides nanocasted from the same template can be attributed to the properties of metal precursors and the interaction between metal oxide and SiO{sub 2}. Thus-obtained mesoporous metal oxides with such special morphologies may have a potential application in the field of environmental catalytic oxidation. - Graphical Abstract: Mesoporous Co{sub 3}O{sub 4} and CeO{sub 2} with different morphologies, such as micrometer-sized rod, hollow sphere, saucer-like sphere, and solid sphere were synthesized by nanocasting.

• OSTI ID: 21372479
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COBALT COMPOUNDS
COBALT OXIDES
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
MICROSCOPY
MORPHOLOGY
NANOSTRUCTURES
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCANNING ELECTRON MICROSCOPY
SCATTERING
SILICON COMPOUNDS
SILICON OXIDES
SPHERES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION