| 铈锆固溶体负载LaCoO3催化碳烟的性能和表征 |
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| 引用本文： | 明彩兵,叶代启,拜玉贤,刘晖.铈锆固溶体负载LaCoO3催化碳烟的性能和表征[J].环境污染治理技术与设备,2010(10):2296-2300. |
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| 作者姓名： | 明彩兵 叶代启 拜玉贤 刘晖 |
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| 作者单位： | [1]仲恺农业工程学院环境科学与工程学院,广州510225 [2]华南理工大学环境科学与工程学院,广州510640 |
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| 基金项目： | 广东省社会发展攻关计划项目（2302950B） |
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| 摘 要： | 用柠檬酸法制备了铈锆固溶体负载不同量LaCoO3的催化剂。用热重法测试了催化剂样品对碳烟的催化活性。采用程序升温还原法（H2-TPR）、BET、X-射线衍射仪（XRD）和X-射线光电子能谱仪（XPS）对催化剂进行了测试。结果表明,铈锆固溶体表面形成了稳定的LaCoO3钙钛矿相结构;负载量为30%LaCoO3的催化剂具有最高的催化活性,起燃温度降到530℃;催化剂的催化活性与催化剂还原峰强度以及催化剂表面氧物种OII的含量紧密相关。
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| 关 键 词： | 铈锆固溶体 LaCoO3 负载 碳烟 |
Catalytic activity of ceria-zirconia solid solution-supported LaCoO3 on soot and characterization |
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| Ming Caibing Ye Daiqi Bai Yuxian Liu Hui.Catalytic activity of ceria-zirconia solid solution-supported LaCoO3 on soot and characterization[J].Techniques and Equipment for Environmental Pollution Control,2010(10):2296-2300. |
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| Authors: | Ming Caibing Ye Daiqi Bai Yuxian Liu Hui |
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| Institution: | Ming Caibing Ye Daiqi Bai Yuxian Liu Hui (1 Department of Environmental Science and Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;2 College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Ceria-zirconia solid solution-supported LaCoO3 catalysts were prepared by citric method.The catalytic activity of the catalysts on soot was tested by thermogravimetry（TG）.All catalysts were investigated by techniques such as temperature-programmed reduction（H2-TPR）,BET surface area,X-ray diffraction（XRD） and X-Ray photoelectron spectroscopy（XPS）.Characterization results showed that stable perovskite phase was formed on ceria-zirconia solid solution.The catalyst with 30% LaCoO3（weight） was most activated with the ignition temperature of 530℃.The catalytic activity of the catalysts on soot was related to surface OII content and reducible peak area of catalysts. |
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| Keywords: | ceria-zirconia solid solutions LaCoO3 loading soot |
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