Ce Basic Hydroxycarbonate Complexe as Precursor for Mesoporous Ceria: Synthesis and Characterization
| Autor: | Yong Wan Gu, Ming Fen Wen, Jian Chen, D. Yang, Ch.L. Song |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Materials science
chemistry.chemical_element Mineralogy Condensed Matter Physics Atomic and Molecular Physics and Optics Hydrothermal circulation law.invention Cerium Mesoporous organosilica chemistry Chemical engineering law General Materials Science Calcination Thermal stability Particle size Mesoporous material BET theory |
| Zdroj: | Solid State Phenomena. :97-100 |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.121-123.97 |
| Popis: | Herein mesoporous CeO2 with high thermal stability was synthesized via a new hydroxycarbonates based hydrothermal threatment approach in present of hexadecyltrimethylammonium bromide (CTAB). IR and XRD prove the coexistence of hydroxycarbonate cerium and CTAB in precursors. TEM micrographs show that non-ordered pore structure is formed in the product, and average particle size of 20 nm is obtained even after calcined at 1173 K. BET results exhibit that the pore structure is stable when the calcination temperature is below 923 K. However, While calcinated at 1173 K, the average particle size is 20 nm, the BET surface area and pore volume can remain as high as 31.07 m2/g and 0.21 cm3 g-1. |
| Databáze: | OpenAIRE |
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