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Crystalline evolution of various CeO2 morphology via a solvothermal method
Alternative TitleRes. Chem. Intermed.
Fu, C.; Li, R. X.; Tang, Q.; Li, C. Q.; Yin, S.; Sato, T.
2011
Conference Name2nd International Solvothermal and Hydrothermal-Association Conference (ISHA 2010)
Source PublicationResearch on Chemical Intermediates
Issue2-5
Pages319-327
Conference DateJUL 27-29, 2010
Conference PlaceBeijing, PEOPLES R CHINA
AbstractPreparation of cerium compounds with different structures and morphology is still a challenge in powder synthesis. CeOHCO3 and CeO2 have received widespread attention because of their potential applications. In this study, a solvothermal method with one-step precipitation was used to synthesize CeO2 with different structures and morphology without use of surfactant. The effects of different experimental conditions on the morphology of CeO2 were investigated. Both X-ray diffraction and SAED patterns revealed that products changed from a single CeOHCO3 phase to a mixture of CeOHCO3 and CeO2. A single Ce(O)2 phase could always be obtained from CeOHCO3 by calcination in air at 673 K for 1 h. Moreover, the morphology of CeOHCO3 was retained. Thus CeO2 particles with different morphology, for example rod-like, prism-like, polygon-like, sphere-like, and cube-like, could be synthesized. Possible mechanisms of phase and morphology evolution are discussed.
KeywordCeo2 Nanosize Morphology Solvothermal Synthesis Thermal-conversion System Microstructures Ceohco3 Ce3++
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11098
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Fu, C.,Li, R. X.,Tang, Q.,et al. Crystalline evolution of various CeO2 morphology via a solvothermal method[C],2011:319-327.
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