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.

引用

页码：21 / 28

页数：7

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