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以介孔氧化硅(SBA-15)为载体,采用超声辅助(NH4)2RuCl6浸渍和BH4还原法制备了负载型Ru-B催化剂,并通过X射线衍射、X光电子能谱、差示扫描量热法和透射电子显微等技术表征了该催化剂.结果表明,所制得的Ru-B-X/SBA-15催化剂具有非晶态合金结构,且Ru-B颗粒高分散在SBA-15的孔道中.在液相麦芽糖加氢反应中,与采用RuCl3为金属源制得的Ru-B-C/SBA-15相比,Ru-B-X/SBA-15催化剂具有更高的活性,是非负载型Ru-B-C催化剂的7倍以上,且能重复套用11次而未发生显著的失活.
The supported Ru-B catalyst was prepared by mesoporous silica (SBA-15) supported by ultrasonic assisted (NH4) 2RuCl6 impregnation and BH4 reduction method. The XRD, XPS and DSC The results show that the prepared Ru-BX / SBA-15 catalyst has an amorphous alloy structure, and the Ru-B particles are highly dispersed in the pores of SBA-15. In the liquid-phase maltose hydrogenation, the Ru-BX / SBA-15 catalyst has a higher activity than Ru-BC / SBA-15 using RuCl3 as the metal source, 7 times more, and can repeat the application of 11 times without significant inactivation.