| Preparation of La0.9K0.1CoO3 Perovskite Composite Oxide |
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| 引用本文： | WANG Wei DU Chuanjin XU Xiang QIU Xiaojin. Preparation of La0.9K0.1CoO3 Perovskite Composite Oxide[J]. 武汉理工大学学报(材料科学英文版), 2005, 20(4): 32-34. DOI: 10.1007/BF02841277 |
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| 作者姓名： | WANG Wei DU Chuanjin XU Xiang QIU Xiaojin |
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| 作者单位： | Automobile Engineering School, Wuhan University of Technology, Wuhan 430070, China |
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| 基金项目： | Funed by the National Natural Science Foundation of China（No.2001AA643020） |
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| 摘 要： |
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| 关 键 词： | 钙钛矿复合氧化物 La0.9K0.1CoO3 柴油机 废气净化 催化剂 溶胶-凝胶法 |
| 收稿时间： | 2005-02-24 |
| 修稿时间： | 2005-06-23 |
Preparation of La0.9K0.1 CoO3 perovskite composite oxide |
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| Wang Wei Ph D,Du Chuanjin,Xu Xiang,Qiu Xiaojin. Preparation of La0.9K0.1 CoO3 perovskite composite oxide[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2005, 20(4): 32-34. DOI: 10.1007/BF02841277 |
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| Authors: | Wang Wei Ph D Du Chuanjin Xu Xiang Qiu Xiaojin |
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| Affiliation: | (1) Automobile Engineering School, Wuhan University of Technology, 430070 Wuhan, China |
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| Abstract: | Two methods for preparing La0.9K0.1CoO3 perovskite composite oxides.traditional solid state reaction method and sol-gel method.were compared.The characteristics of the powders,such as purity.particle diameter,BET surface area,pore diameter,were inrestigated by using TG-DTA,XRD,SEM and BET methods.The experimental results shou that La0.9K0.1CoO3 perorskite composite oxide can be obtained by using the two methods.The purity of La0.9K0.1CoO3 powders can be increased by raising the calcining temperature while the particle diameter increased and BET surface area decreased.At the same calcining temperature,the properties of the La0.9K0.1CoO3 powders synthesized by the sol-gel method are superior to those synthesized by the solid state reaction method.such as purer phase,smaller particle diameter,which can be used as a satisfactory catalyst in diesel waste gas cleaning. |
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| Keywords: | La0.9K0.1CoO3 perovskite composite oxides sol-gel method diesel waste gas cleaning |
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