| 共沉淀法制备的CeO2-ZrO2-Al2O3材料及性能 |
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| 引用本文： | 李红梅,周菊发,祝清超,曾少华,魏振玲,陈耀强,龚茂初.共沉淀法制备的CeO2-ZrO2-Al2O3材料及性能[J].高等学校化学学报,2009,30(12):2484-2486. |
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| 作者姓名： | 李红梅 周菊发 祝清超 曾少华 魏振玲 陈耀强 龚茂初 |
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| 作者单位： | 四川大学化学学院,绿色化学与技术教育部重点实验室,成都,610064 |
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| 基金项目： | 国家自然科学基金，国家"八六三"计划项目，博士点基金 |
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| 摘 要： | 采用简单易操作的共沉淀法制备了性能优异的CZA材料, 并通过对其晶体结构的表征, 初步探讨了ZrO2和Al2O3在CZA中的存在方式.
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| 关 键 词： | CeO2-ZrO2-Al2O3 共沉淀法 热稳定性能 结构性能 固溶体 |
| 收稿时间： | 2009-07-15 |
Investigation of the Properties of CeO_2-ZrO_2-Al_2O_3 Prepared by Co-precipitation |
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| LI Hong-Mei,ZHOU Ju-Fa,ZHU Qing-Chao,ZENG Shao-Hua,WEI Zhen-Ling,CHEN Yao-Qiang,GONG Mao-Chu.Investigation of the Properties of CeO_2-ZrO_2-Al_2O_3 Prepared by Co-precipitation[J].Chemical Research In Chinese Universities,2009,30(12):2484-2486. |
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| Authors: | LI Hong-Mei ZHOU Ju-Fa ZHU Qing-Chao ZENG Shao-Hua WEI Zhen-Ling CHEN Yao-Qiang GONG Mao-Chu |
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| Institution: | Key Laboratory of Green Chemistry﹠Technology, Ministry of Education, Sichuan University, Chengdu 610064, China |
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| Abstract: | CeO2-based oxygen materials were prepared with co-precipitation method and characterized via Brunauer-Emmet Teller(BET)method,X-ray diffraction(XRD)and temperature-programmed reduction(H2-TPR).This paper revealed that three CeO2-based oxygen storage materials are all forming homogeneous solid solution.Among the samples,CeO2-ZrO2-Al2O3(CZA)has the best textural properties and excellent thermal stability.The specific surface area and pore volume of aged CZA are 90 m2/g and 0.29 mL/g.We proposed a viewpoint:Al... |
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| Keywords: | CeO_2-ZrO_2-Al_2O_3 CeO_2-ZrO_2-Al_2O_3 Co-precipitation method Thermal stability Structure property Solid solution |
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