摘要
本文对稀土氧化物的助剂作用做了进一步研究。添加助剂后活性组分镍在催化剂表面富集,并且以小颗粒分散,这种效应可能与稀土元素性质有关。
In this work,we heve made an investigation on promoter effects of oxide of rare earth (La,Ce, Pr,Nd)in Ni/r-Al_2O_3 system.Great concentration of Ni atom in surface of was caused by Additive of promoter,and the metal Nickel was dispersed in grain.It is possible that this effects is concerned with the nature of rare earth elements.
出处
《包头钢铁学院学报》
1990年第1期8-13,共6页
Journal of Baotou University of Iron and Steel Technology
