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| Study on Modification of Sm2O3 by Ni／Sepiolite Catalyst | |
| 引用本文： | 罗来涛,李松军,邓庚凤. Study on Modification of Sm2O3 by Ni／Sepiolite Catalyst[J]. 中国稀土学报(英文版), 2003, 21(4): 494-497 |
| 作者姓名： | 罗来涛 李松军 邓庚凤 |
| 作者单位： | InstituteofAppliedChemistry,NanchangUniversity.Nanchang330047,China |
| 基金项目： | ProjectsupportedbyNationalNaturalScienceFoundationofChina (2 980 3 0 0 2 ) |
| 摘 要： | A series of Ni-Sm/sepiolite catalysts were prepared by impregnation. The modification of Sm2O3 for Ni/sepiolite was investigated by TPR, XPS and poisoning of CS2, respectively. The results indicate that the addition of Sm2O3 improves the activity of hydrogenation and anti-poisoning ability of Ni/sepiolite catalyst, and it also increases the dispersion of nickel atoms over support and the amount of active nickel atoms in catalyst. Effect of Sm203 on Ni/sepiolite catalyst ineludes not only electronic effect but also steric effect, whereas electronic effect seems to be principal. |
| 关 键 词： | 催化化学 催化剂 镍 海泡石 Sm2O3 钐 稀土 |
Study on Modification of Sm2O3 by Ni/Sepiolite Catalyst |
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| Abstract: | A series of Ni Sm/sepiolite catalysts were prepared by impregnation. The modification of Sm 2O 3 for Ni/sepiolite was investigated by TPR, XPS and poisoning of CS 2, respectively. The results indicate that the addition of Sm 2O 3 improves the activity of hydrogenation and anti poisoning ability of Ni/sepiolite catalyst, and it also increases the dispersion of nickel atoms over support and the amount of active nickel atoms in catalyst. Effect of Sm 2O 3 on Ni/sepiolite catalyst includes not only electronic effect but also steric effect, whereas electronic effect seems to be principal. |
| Keywords: | catalytic chemistry Ni catalyst sepiolite samarium rare earths |
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