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| Ce_(0.67)Zr_(0.33)O_2材料的制备和表征及其负载单Pd三效催化剂的性能 | |
| 引用本文： | 赵波,王秋艳,葛昌华,李光凤,周仁贤.Ce_(0.67)Zr_(0.33)O_2材料的制备和表征及其负载单Pd三效催化剂的性能[J].催化学报,2009,30(5). |
| 作者姓名： | 赵波 王秋艳 葛昌华 李光凤 周仁贤 |
| 作者单位： | 1. 浙江大学催化研究所,浙江杭州,310028;台州学院医药化工学院,浙江台州,317000 2. 浙江大学催化研究所,浙江杭州,310028 3. 台州学院医药化工学院,浙江台州,317000 |
| 基金项目： | 国家高技术研究发展计划(863计划)，浙江省自然科学基金 |
| 摘 要： | 采用共沉淀法、均匀沉淀法、微乳法和水热法四种方法制备了铈锆固溶体(CZ),对其进行了X射线衍射和N2吸附脱附分析.以CZ为载体制备了负载单Pd三效催化剂,并对催化剂进行了氧化还原性能测试.结果表明,制备方法对CZ载体的物理、化学性能有显著的影响,而其负载单Pd催化剂的催化活性与CZ载体比表面积的大小没有明显的对应关系.采用共沉淀法制备的CZ载体具有相对良好的热稳定性以及储放氧能力,其负载单Pd催化剂在老化前后表面PdO物种有良好的还原性能,并表现出优异的三效催化性能. |
| 关 键 词： | 氧化铈 氧化锆 制备方法 钯 三效催化剂 |
Preparation and Characterization of Ce_(0.67)Zr_(0.33)O_2 and the Activity of Its Supported Only-Pd Three-Way Catalysts |
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| ZHAO Bo,WANG Qiuyan,GE Changhua,LI Guangfeng,ZHOU Renxian.Preparation and Characterization of Ce_(0.67)Zr_(0.33)O_2 and the Activity of Its Supported Only-Pd Three-Way Catalysts[J].Chinese Journal of Catalysis,2009,30(5). | |
| Authors: | ZHAO Bo WANG Qiuyan GE Changhua LI Guangfeng ZHOU Renxian |
| Institution: | ZHAO Bo1,2,WANG Qiuyan1,GE Changhua2,LI Guangfeng1,ZHOU Renxian1,1Institute of Catalysis,Zhejiang University,Hangzhou 310028,Zhejiang,China 2School of Pharmaceutical , Chemical Engineering,Taizhou University,Taizhou 317000,China |
| Abstract: | Ce0.67Zr0.33O2(CZ) was prepared by the co-precipitation method,hydrothermal method,homogeneous precipitation method,and microemulsion method and characterized by X-ray diffraction and N2 adsorption-desorption.Only-Pd/CZ catalysts were prepared and stud-ied by temperature-programmed reduction and activity tests.The results showed that preparation methods have great effect on the support properties,and there is no direct relationship between catalytic activity and support surface area.The CZ support prepared ... |
| Keywords: | ceric oxide zirconia preparation method palladium three-way catalyst |
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