Ru/C催化剂的制备及催化喹啉加氢性能研究

The Preparation of Ru/C Catalysts and Catalytic Quinoline Hydrogenation Performance Research

摘要:

利用先浸渍吸附再用KBH4还原的方法制备5%Ru/C催化剂，采用X射线衍射（XRD）、X射线光电子能谱（XPS）和高分辨透射电镜（TEM）等对催化剂进行了表征。结果表明所制得的5%Ru/C催化剂分散度高，金属钌的平均粒径2～3nm。在喹啉加氢反应中，催化剂显示出很高的催化活性。以水为溶剂，在100℃，2MPa氢气压力下反应1h，喹啉的转化率为100%，1,2,3,4-四氢喹啉的选择性为100%，TOF为338h-1。

Abstract:

Use first dipping adsorption with KBH4 reduction method of the preparation of 5%Ru/C catalysts which have been characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (TEM). Results show that dispersion degree of 5%Ru/C catalyst is high, the average grain size of metal ruthenium 2 ~ 3 nm. In quinoline hydrogenation reaction, the catalyst showed high catalytic activity. With water as solvent,, at 100 ℃, reaction 1 h ,2 MPa hydrogen pressure, the conversion of quinoline was 100% and the selectivity of 1, 2, 3, 4 -tetraquinoline was up to 100%,TOF for 338h-1 .