A simple method to prepare highly active and dispersed Ni/MCM-41 catalysts by co-impregnation
A simple method to prepare highly active and dispersed Ni/MCM-41 catalysts by co-impregnation
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共浸渍制备高活性分散Ni/MCM-41催化剂的简便方法
DOI：
10.1016/j.catcom.2013.07.031
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发表时间：
2013-12-05
影响因子：
3.7
通讯作者：
Ma, Longlong
中科院分区：
文献类型：
--
作者：
Qiu, Songbai;Zhang, Xue;Ma, Longlong
研究了用共浸渍法制备高活性分散负载型金属催化剂的简便方法。与传统湿浸渍相比，在硝酸金属水溶液中加入适量的乙二醇可以增强与MCM-41表面的相互作用，形成极小的NiO粒径（3.5 nm）和高分散性的活性相。共浸渍制备的Ni/MCM-41催化剂在55℃条件下对萘的低温加氢反应表现出优异的催化性能，转化率达到100%，其催化活性可与Raney Ni催化剂相媲美。采用XRD、TEM、TG-DSC、FT-IR、BET和TPR对催化剂进行了表征。(C) 2013年Elsevier B.V.出版
A simple method for preparing highly active and dispersed supported metal catalysts was developed by co-impregnation. Compared with conventional wetness impregnation, addition of moderate ethylene glycol into the metal nitrate aqueous solution could enhance interaction with MCM-41 surface, resulting in formation of very small NiO particle size (3.5 nm) and high dispersion of the active phase. The Ni/MCM-41 catalysts using co-impregnation exhibited excellent catalytic performance for low temperature hydrogenation of naphthalene with 100% conversion at 55 degrees C, which could rival the activity of commercial Raney Ni catalyst. The obtained catalysts were characterized by XRD, TEM, TG-DSC, FT-IR, BET and TPR. (C) 2013 Published by Elsevier B.V.