Improved resistance against coke deposition of titania supported cobalt and nickel bimetallic catalysts for carbon dioxide reforming of methane

被引：56
作者：
Takanabe, K
Nagaoka, K
Aika, K
机构：
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Environm Chem & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan
[2] Japan Sci & Technol Corp, JST, CREST, Tokyo, Japan
[3] Oita Univ, Fac Engn, Dept Appl Chem, Oita 8701192, Japan
来源：
CATALYSIS LETTERS | 2005年 / 102卷 / 3-4期
关键词：
cobalt; nickel; bimetal; titania; methane; CO2; reforming; strong resistance to coking;
D O I：
10.1007/s10562-005-5848-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The catalytic behavior of bi-metallic Co-Ni/TiO2 catalysts for CO2 reforming of CH4 to synthesis gas was investigated under atmospheric pressure with a particular attention to carbon deposition. The catalysts with optimized Co/Ni ratios showed high catalytic stability towards the reaction with very little amount of deposited carbon at a wide range of reaction temperature (773-1123 K). The results suggest that adjusting of composition of the active metals (Co and Ni) can kinetically control the elementary steps (formation of carbon species and its removal by oxygen species) of CH4/CO2 reaction.
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收藏
页码：153 / 157
页数：5
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