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非晶态金属合金作催化材料的研究 V.Ni-W-P非晶态合金微粒催化加氢活性研究
Studies of Amorphous Metals as Catalytic Material Ⅴ. Amorphous Ni-W-P Alloy Powder and Its Hydrogenation Activity
【摘要】 首次用化学还原法制备了非晶态Ni-W-P合金微粒.应用X射线衍射(XRD)、差热分析(DSC)、透射电子显微镜(TEM)和X射线光电子能谱(XPS)等方法对该微粒进行了表征.考察了该微粒催化环戊二烯加氢的活性,并与Ni-P非晶态合金对比,发现少量的W的加入改变了Ni-P的加氢活性.
【Abstract】 A novel amorphous Ni-W-P alloy powder was prepared by chemical reduction. Its amorphous structure was determined by XRD, DSC and TEM. The XPS of the Ni-W-P powder showed that both nickel and phosphorus existed as elementary state, while tungsten as metallicand oxidized state on the surface. The catalytic activity of amorphous Ni-W-P for the hydrogenation of cyclopentadiene was measured and compared with amorphous Ni-P. The results revealed that by adding a little amount of tungsten in the amorphous Ni-P alloy, its property was greatly changed.
【基金】 国家教委博士点专项基金资助
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1994年09期
- 【分类号】O643.3
- 【被引频次】26
- 【下载频次】156