| Effects of ZrO2 Content on Structure and Performance of Cu/CeO2-ZrO2 Catalysts for Water-Gas Shift Reaction |
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| 引用本文： | 郑云弟 林性贻 郑起 詹瑛瑛 李达林 魏可镁. Effects of ZrO2 Content on Structure and Performance of Cu/CeO2-ZrO2 Catalysts for Water-Gas Shift Reaction[J]. 中国稀土学报(英文版), 2005, 23(6): 685-689 |
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| 作者姓名： | 郑云弟 林性贻 郑起 詹瑛瑛 李达林 魏可镁 |
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| 作者单位： | National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China，National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China，National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China，National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China，National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China，National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 China |
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| 基金项目： | 中国科学院资助项目，Project for Science and Technology of Fujian Province |
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| 摘 要： | Water-gas shift(WGS)is a critical step in fuelprocessors for preli minary COclean-up and additionalhydrogen generation prior to the CO clean-up stage,which opened up new potential applications for WGScatalysts.Recently several formulations of noble-met-al…
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| 关 键 词： | 稀土 Cu/CeO2-ZrO2 催化剂 水气变换 结构 性能 |
| 文章编号： | 1002-0721（2005）06-0685-05 |
| 收稿时间： | 2005-08-01 |
| 修稿时间： | 2005-08-29 |
Effects of ZrO2 Content on Structure and Performance of Cu/CeO2-ZrO2 Catalysts for Water-Gas Shift Reaction |
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| Zheng Yundi,Lin Xingyi,Zheng Qi,Zhan Yingying,Li Dalin,Wei Kemei. Effects of ZrO2 Content on Structure and Performance of Cu/CeO2-ZrO2 Catalysts for Water-Gas Shift Reaction[J]. Journal of Rare Earths, 2005, 23(6): 685-689 |
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| Authors: | Zheng Yundi Lin Xingyi Zheng Qi Zhan Yingying Li Dalin Wei Kemei |
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| Abstract: | Cu/CeO2-ZrO2 catalysts for water-gas shift (WGS) reaction were prepared with co-precipitation method, and the influence of ZrO2 content on the catalytic structure and properties was investigated by the techniques of N2 physical adsorption analysis, XRD and H2-TPR. The results indicate that the BET surface areas of the catalysts are increased in varying degrees due to the presence of ZrO2. With increasing ZrO2 content, the pore size distribution is centered on 1.9 nm. ZrO2can efficiently restrain the growth of Cu crystal particles. The appropriate amount of ZrO2 in the Cu/CeO2 catalysts can help the catalyst keep better copper dispersion in the WGS reaction, which can lead to both higher catalytic activity and better thermal stability. When ZrO2 content is 10% (atom fraction), Cu/CeO2-ZrO2 catalyst reaches a CO conversion rate of 73.7 % at the reaction temperature of 200 ℃. |
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| Keywords: | water-gas shift Cu/CeO2-ZrO2 catalyst rare earths |
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