Characterization and catalytic performance of Co, Ni and W trimetallic carbides

被引：0
|
作者：
Sergio L. González-Cortés
Tian-Cun Xiao
Andrew P. E. York
Ding Ma
Hamid Al-Megren
Malcolm L.H. Green
机构：
[1] Wolfson Catalysis Centre,
[2] Inorganic Chemistry Laboratory,undefined
[3] University of Oxford,undefined
[4] Wolfson Catalysis Centre,undefined
[5] Inorganic Chemistry Laboratory,undefined
[6] University of Oxford,undefined
[7] Wolfson Catalysis Centre,undefined
[8] Inorganic Chemistry Laboratory,undefined
[9] University of Oxford,undefined
[10] Wolfson Catalysis Centre,undefined
[11] Inorganic Chemistry Laboratory,undefined
[12] University of Oxford,undefined
[13] Wolfson Catalysis Centre,undefined
[14] Inorganic Chemistry Laboratory,undefined
[15] University of Oxford,undefined
[16] Wolfson Catalysis Centre,undefined
[17] Inorganic Chemistry Laboratory,undefined
[18] University of Oxford,undefined
来源：
Reaction Kinetics and Catalysis Letters | 2005年 / 84卷
关键词：
Wolframite-type oxides; pyridine hydrodenitrogenation; W-based carbides; trimetallic carbides;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
New wolframite-type oxides (Co1-xNixWO4) with various compositions havebeen prepared by a combustion method and carburized using a temperature-programmed reaction.  Catalytic performance was evaluated in a continuous flow reactor using pyridine hydrodenitrogenation (HDN) as the model reaction. The carbide phase composition is markedly affected by the atomic ratio (i.e.,Ni / Ni +Co). The mixed Co, Ni and W carbides are active catalysts for pyridine HDN reaction; however they undergo deactivation due to graphitic carbon deposition and segregation.
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页码：21 / 28
页数：7
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