| Magnetic Properties and Activity of Pt-Er/γ-Al2O3 Catalysts |
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| 引用本文： | 李凤仪,李建勇,卢维奇,章新泉.Magnetic Properties and Activity of Pt-Er/γ-Al2O3 Catalysts[J].中国稀土学报(英文版),2006,24(1):50-53. |
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| 作者姓名： | 李凤仪 李建勇 卢维奇 章新泉 |
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| 作者单位： | [1]Institute of Applied Chemistry, Nanchang University, Nanchang 330047, China [2]Jiangxi Analyzing Testinng Center, Nanchang 330029, China |
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| 摘 要： | A series of Pt-Er/γ-Al2O3 catalysts containing 0. 5 % （mass fraction） platinum and 0.05 %-1.5 % Er were prepared by impregnation of γ-Al2O3 supported with different concentrations of erbium chloride solution. The surface properties of the catalysts were studied by methods of temperature programmed reduction and temperature programmed desorption. The magnetic behavior of Pt-Er/γ-Al2O3 catalysts were studied with a Faraday magnetic balance and the results show that the addition of Er can affect the surface properties, the catalytic activities, and magnetic behavior of the reforming catalysts. It is found that there is a corresponding relationship between the susceptibility and selectivity of Pt-Er/γ-Al2O3 catalysts. The experimental results show that Er plays the role of electron promoter.
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| 关 键 词： | 贵金属催化剂 催化活性 磁性能 Pt-Er/γ-Al2O3 |
| 文章编号： | 1002-0721（2006）01-0050-04 |
| 收稿时间： | 2004-11-10 |
| 修稿时间： | 2005-11-08 |
Magnetic Properties and Activity of Pt-Er/γ-Al2O3 Catalysts |
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| Li FengYi;Li JianYong;Lu WeiJi;Zhang XinQuan.Magnetic Properties and Activity of Pt-Er/γ-Al2O3 Catalysts[J].Journal of Rare Earths,2006,24(1):50-53. |
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| Authors: | Li FengYi;Li JianYong;Lu WeiJi;Zhang XinQuan |
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| Affiliation: | 1. College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang Province, Jinhua 321004, People''s Republic of China;2. College of Geography and Environmental Sciences, Zhejiang Normal University, Zhejiang Province, Jinhua 321004, People''s Republic of China |
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| Abstract: | A series of Pt-Er/γ-Al2O3 catalysts containing 0.5% (mass fraction) platinum and 0.05%-1.5% Er were prepared by impregnation of γ-Al2O3 supported with different concentrations of erbium chloride solution. The surface properties of the catalysts were studied by methods of temperature programmed reduction and temperature programmed desorption. The magnetic behavior of Pt-Er-γ-Al2C3 catalysts were studied with a Faraday magnetic balance and the results show that the addition of Er can affect the surface properties, the catalytic activities, and magnetic behavior of the reforming catalysts. It is found that there is a corresponding relationship between the susceptibility and selectivity of Pt-Er-γ-Al2O3 catalysts. The experimental results show that Er plays the role of electron promoter. |
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| Keywords: | Pt-Er-Al_2O_3 catalysts catalytic activity magnetic properties surface properties rare earths |
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