| 固相化学法制备纳米Ce0.75Zr0.25O2粉体的表征及应用（英文） |
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| 引用本文： | 郑育英,廖世军,黄慧民.固相化学法制备纳米Ce0.75Zr0.25O2粉体的表征及应用（英文）[J].材料科学与工程学报,2011(1):1-6,20. |
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| 作者姓名： | 郑育英 廖世军 黄慧民 |
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| 作者单位： | 华南理工大学化学与化工学院;广东工业大学轻工化工学院 |
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| 基金项目： | the financial sponsor from National Natural Science Foundation of China(NSFC)under Granted No.60977029 and 10774031 |
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| 摘 要： | 以Ce2(CO)3,ZrOCl2.8 H2O和H2C2O4.2 H2O为原料,第一次成功地采用了机械力活化固相化学法制备纳米Ce0.75Zr0.25O2粉体。以XRD、TEM分析及XPS等测试手段对Ce0.75Zr0.25O2粉体的结构和形貌进行了表征,结果表明,产物为单一立方相的球形粉体,平均粒径小于20nm,比表面积为85.4m2/g。通过TG-DTA分析,对合成过程中可能发生的化学反应机理进行了分析。对Ce0.75Zr0.25O2氧化物固溶体在三效催化剂中的活性进行了评价。
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| 关 键 词： | 氧化铈 氧化锆 固相化学法 纳米 |
Characterization and Application of Nanometer Ce0.75Zr0.25O2 Powder Synthesized by Solid State Chemical Reaction Method |
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| ZHENG Yu-ying,LIAO Shi-jun,HUANG Hui-min.Characterization and Application of Nanometer Ce0.75Zr0.25O2 Powder Synthesized by Solid State Chemical Reaction Method[J].Journal of Materials Science and Engineering,2011(1):1-6,20. |
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| Authors: | ZHENG Yu-ying LIAO Shi-jun HUANG Hui-min |
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| Affiliation: | 1.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,China;2.College of Light and Chemical Engineering, Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | Nanostructured Ce0.75Zr0.25O2 powder was successfully synthesized via mechanically activated solid state chemical reaction method for the first time,using Ce2（CO）3,ZrOCl2·8H2O and H2C2O4·2H2O as raw materials.Their structure and morphology were characterized by X-ray powder diffractometry,transmission electron microscopy,X-ray photoelectron spectrometmetry and BET surface area testing technique.The results show that the powder is a single-cubic-phase, spherical shape,the average particle size is smaller than 20nm,and the specific surface area of 85.4m2/g.The possibly chemical reactions during the synthesis process were determined through TG-DTA investigation.The activity of Ce0.75Zr0.25O2 oxide solution in three-way catalysts was valued in this work. |
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| Keywords: | Ceria zirconia solid state chemical reaction nanometer |
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