负载型Ru－Co羰基簇催化剂的XPS和TPD表征  

Spectroscopic Characterization of Supported Ru-Co Carbonyl Cluster Catalyst

作　　者：乌乐[1] 索全伶[1] 陶克[1] 

机构地区：[1]内蒙古大学化学系,内蒙古工业大学

出　　处：《内蒙古大学学报（自然科学版）》1995年第4期441-443,共3页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家和内蒙古自然科学基金

摘　　要：制备了负载型Ｒｕ－Ｃｏ羰基簇催化剂，用Ｘ－ｒａｙ光电子能谱（ＸＰＳ）和程序升温脱羰（ＴＰＤ）等技术，对负载型双金属簇催化剂的表面化学性质和不同气氛中的脱附产物进行了研究，发现负载后，簇合物ＫＲｕＣｏ＿３（ＣＯ）＿（１２）中的ＲｕＣｏ＿３簇骨架与担体表面原子发生强相互作用．在反应温度下，可形成高分散型催化剂．认为ＣＯ加氢反应是按碳烯机理进行．upported Ru-Co carbonyl cluster catalyst is prepared.The characterization of surface chem-istry and the desorption products of supported bimetallic cluster catalyst under different atmo-spheres are studied by means of X-ray photoelectron spectroscopy(XPS)and temperature pro-grammed desorption(TPD).The results show that there is a strong interaction between the clus-ter metal framework(RuCo_3)and the surface atom of supporter.It is suggested that the CO hy-drogenation is carried out by the carbene mechanism.

关 键 词：负载型催化剂 XPS TPD 钌-钴催化剂 催化活性 

分 类 号：O643.36[理学—物理化学] TQ426.82[理学—化学]