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| 微量铈对Ni-P非晶态合金催化剂的苯加氢性能及热稳定性的影响 | |
| 引用本文： | 陈昌荣,卞国柱,姜明,万小红,李忠瑞,韦世强.微量铈对Ni-P非晶态合金催化剂的苯加氢性能及热稳定性的影响[J].催化学报,1999,20(6):659-663. |
| 作者姓名： | 陈昌荣 卞国柱 姜明 万小红 李忠瑞 韦世强 |
| 作者单位： | 1. 中国科学技术大学,化学物理系 2. 国家同步辐射实验室 3. 国家同步辐射实验室;基础物理中心,合肥,230026 |
| 基金项目： | 国家自然科学基金;29673038; |
| 摘 要： | 采用化学还原法制备了不同铈含量的Ni-P-Ce超细非晶态合金催化剂,测试了其苯加氢活性.应用X射线衍射和差热方法对经不同温度退火后的样品进行了结构分析,并和其苯加氢活性相关联.实验发现,微量铈的加入可大大提高催化剂的热稳定性,进而提高其加氢活性. |
| 关 键 词： | 超细镍磷非晶态合金催化剂 热稳定性 |
| 修稿时间： | 1999年2月12日 |
EFFECT OF CERIUM ADDITION UPON THE ACTIVITY AND THE THERMOSTABILITY OF ULTRAFINE AMORPHOUS Ni-P ALLOY CATALYSTS FOR BENZENE HYDROGENATION |
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| Chen Changrong,Bian Guozhu,Jiang Ming,Wan Xiaohong,Li Zhongrui,Wei Shiqiang.EFFECT OF CERIUM ADDITION UPON THE ACTIVITY AND THE THERMOSTABILITY OF ULTRAFINE AMORPHOUS Ni-P ALLOY CATALYSTS FOR BENZENE HYDROGENATION[J].Chinese Journal of Catalysis,1999,20(6):659-663. | |
| Authors: | Chen Changrong Bian Guozhu Jiang Ming Wan Xiaohong Li Zhongrui Wei Shiqiang |
| Abstract: | The thermal stability of ultrafine Ni P Ce amorphous alloy catalysts with different cerium contents prepared by chemical reduction method and annealed at different temperatures in a flow of argon was studied by X ray diffraction and differential thermal analysis. Benzene hydrogenation was used as a test reaction of the catalytic properties of the annealed samples. It is found that the activity of the samples strongly depends upon the amorphous structure of the Ni P alloys. The addition of small amount of cerium to the samples significantly enhances the thermal stability of the amorphous structure and thus the activity for benzene hydrogenation. |
| Keywords: | ultrafine nickel phosphorus amorphous alloy catalyst thermostability |
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