| Effects of Cerium Oxide on Ni／Al2O3 Catalysts for Decomposition of CH4 and C2H4 |
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| 引用本文： | 杨咏来,李文钊,徐恒泳. Effects of Cerium Oxide on Ni／Al2O3 Catalysts for Decomposition of CH4 and C2H4[J]. 中国稀土学报(英文版), 2003, 21(4): 427-429 |
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| 作者姓名： | 杨咏来 李文钊 徐恒泳 |
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| 作者单位： | DalianInstituteofChemicalPhysics,ChineseAcademyofSciences,Dalian116023,China |
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| 基金项目： | 973projectsupportedbytheMinistryofScienceandTechnologyofChina (G19990 2 2 40 1) |
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| 摘 要： | Characteristics of carbon deposition of CH4 and C2H4 decomposition over supported Ni and Ni-Ce catalysts were studied by using a pulse reaction as well as BET, TPR, XPS and hydrogen chemisorption techniques. It is found that there is a metal-semiconductor interaction (MScI) in the Ni-Ce catalyst, and the effect of MScI on the carbon deposition of CH4 decomposition is opposite to that of C2H4. A novel model of carbon deposition of CH4 or C2H4 decomposition was proposed.
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| 关 键 词： | 甲烷 乙烷 分解 催化剂 Ni／Al2O3 氧化铈 催化化学 |
Effects of Cerium Oxide on Ni/Al2O3 Catalysts for Decomposition of CH4 and C2H4 |
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| Yang Yonglai ,Li Wenzhao,Xu Hengyong. Effects of Cerium Oxide on Ni/Al2O3 Catalysts for Decomposition of CH4 and C2H4[J]. Journal of Rare Earths, 2003, 21(4): 427-429 |
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| Authors: | Yang Yonglai Li Wenzhao Xu Hengyong |
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| Affiliation: | Yang Yonglai *,Li Wenzhao,Xu Hengyong |
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| Abstract: | Characteristics of carbon deposition of CH 4 and C 2H 4 decomposition over supported Ni and Ni Ce catalysts were studied by using a pulse reaction as well as BET, TPR, XPS and hydrogen chemisorption techniques. It is found that there is a metal semiconductor interaction (MScI) in the Ni Ce catalyst, and the effect of MScI on the carbon deposition of CH 4 decomposition is opposite to that of C 2H 4. A novel model of carbon deposition of CH 4 or C 2H 4 decomposition was proposed. |
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| Keywords: | catalytic chemistry Ni/Al 2O 3 catalyst cerium oxide methane ethylene decomposition rare earths |
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