【摘要】 考察了助剂La、Ce、V、Zn对共沉淀Fe-Mn催化剂程序升温还原过程（TPR）的影响。研究表明,助剂La、Ce的加入虽抑制了催化剂总的还原过程,但却促进了其中(Fe_1-yMn_y)₃O₄到(Fe_1-2Mn₂)O的还原;助剂V的加入改变了催化剂的还原历程,并使其还原速率加快;助剂Zn对催化剂低温还原过程有抑制作用,但对高温还原有促进作用。更多还原

【Abstract】 The effect of promoters La,Ce,V and Zn on the Temperature Programmed Reduction （TPR） of coprecipitated Fe/Mn catalyst has been investigated. It was found that both La and Ce can suppress the reduction process of catalyst,but promote the reduction from (Fe_1-yMn_y)₃O₄ to (Fe_1-zMn_z)O. The promoter V may change the mechanism of reduction. For the promoter Zn,the reduction process at lower temperature can be inhibited,while this at higher temperature may be improved.更多还原