| CO_2 Reforming of CH_4 over Ni/CeO_2-ZrO_2-Al_2O_3 Prepared by Hydrothermal Synthesis Method |
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| 引用本文： | Chunlin Li,Yilu Fu,Guozhu Bian,Tiandou Hu,Yaning Xie,Jing ZhanDepartment of Chemical Physics,University of Science,and Technology of China,Hefei 230026,China, Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China. CO_2 Reforming of CH_4 over Ni/CeO_2-ZrO_2-Al_2O_3 Prepared by Hydrothermal Synthesis Method[J]. 天然气化学杂志, 2003, 12(3) |
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| 作者姓名： | Chunlin Li Yilu Fu Guozhu Bian Tiandou Hu Yaning Xie Jing ZhanDepartment of Chemical Physics University of Science and Technology of China Hefei 230026 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China |
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| 作者单位： | Chunlin Li，Yilu Fu，Guozhu Bian，Tiandou Hu，Yaning Xie，Jing ZhanDepartment of Chemical Physics，University of Science，and Technology of China，Hefei 230026，China; Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100039，China |
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| 摘 要： | The Ni/CeO2-ZrO2-Al2O3 catalyst with different Al2O3 and NiO contents were prepared by hydrothermal synthesis method. The catalytic performance for CO2 reforming of CH4 reaction, the interaction among components and the relation between Ni content and catalyst surface basicity were investigated. Results show that the interaction between NiO and Al2O3 is stronger than that between NiO and CeO2-ZrO2.The addition of Al2O3 can prevent the formation of large metallic Ni ensembles, increase the dispersion of Ni, and improve catalytic activity, but excess Al2O3 causes the catalyst to deactivate easily. The interaction between NiO and CeO2 results in more facile reduction of surface CeO2. The existence of a small amount of metallic Ni can increase the number of basic sites. As metallic Ni may preferentially reside on the strong basic sites, increasing Ni content can weaken the catalyst basicity.
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CO2 Reforming of CH4 over Ni/CeO2-ZrO2-Al2O3 Prepared by Hydrothermal Synthesis Method |
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| Chunlin Li,Yilu Fu,Guozhu Bian,Tiandou Hu,Yaning Xie,Jing Zhan. CO2 Reforming of CH4 over Ni/CeO2-ZrO2-Al2O3 Prepared by Hydrothermal Synthesis Method[J]. Journal of Natural Gas Chemistry, 2003, 12(3) |
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| Authors: | Chunlin Li Yilu Fu Guozhu Bian Tiandou Hu Yaning Xie Jing Zhan |
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| Abstract: | The Ni/CeO2-ZrO2-Al2O3 catalyst with different Al2O3 and NiO contents were prepared by hydrothermal synthesis method. The catalytic performance for CO2 reforming of CH4 reaction, the interaction among components and the relation between Ni content and catalyst surface basicity were investigated. Results show that the interaction between NiO and Al2O3 is stronger than that between NiO and CeO2-ZrO2.The addition of Al2O3 can prevent the formation of large metallic Ni ensembles, increase the dispersion of Ni, and improve catalytic activity, but excess Al2O3 causes the catalyst to deactivate easily. The interaction between NiO and CeO2 results in more facile reduction of surface CeO2. The existence of a small amount of metallic Ni can increase the number of basic sites. As metallic Ni may preferentially reside on the strong basic sites, increasing Ni content can weaken the catalyst basicity. |
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| Keywords: | carbon dioxide reforming methane nickel ceria zirconia alumina hydrothermal synthesis |
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