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.
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.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1994年第9期877-882,共6页
Acta Chimica Sinica
基金
国家教委博士点专项基金资助
