| 光谱学与光谱分析 |
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| The Relationship between Structure and Oxygen Storage Capacity of CexZr1-xO2 Solid Solution |
| ZHAN Ying-ying,CAI Guo-hui,XIAO Yi-hong,ZHENG Qi*,WEI Ke-mei |
| National Engineering Research Center of Chemical Fertilizer Catalyst at Fuzhou University, Fuzhou 350002, China |
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Abstract Heating reflux aging technology was applied to prepare a series of CexZr1-xO2(0.25≤x≤1) solid solution. The effects of the CexZr1-xO2 composition on the structure and oxygen storage capacity were characterized using N2 physical adsorption, X-ray diffraction (XRD), FT-Raman, UV-Vis diffuse spectroscopy techniques. The texture, structure and thermal stability of ceria-zirconia mixed oxides are closely related to the ratio of cerium to zirconium in the solid solution, with increasing the zirconium content, the specific area increases, and the structure undergoes a change of order→disorder→order. Among them, Ce0.4Zr0.6O2 sample possesses the maximum OSC and Ce0.25Zr0.75O2 sample possesses the best thermal stability.
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Received: 2006-07-28
Accepted: 2006-11-02
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Corresponding Authors:
ZHENG Qi
E-mail: zhengqi@fzu.edu.cn
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| Cite this article: |
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ZHAN Ying-ying,CAI Guo-hui,XIAO Yi-hong, et al. The Relationship between Structure and Oxygen Storage Capacity of CexZr1-xO2 Solid Solution[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2266-2269.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I11/2266 |
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