The mechanism of carbon dioxide hydrogenation on copper and nickel catalysts

被引：0
|
作者：
A. L. Lapidus
N. A. Gaidai
N. V. Nekrasov
L. A. Tishkova
Yu. A. Agafonov
T. N. Myshenkova
机构：
[1] Russian Academy of Sciences,Zelinsky Institute of Organic Chemistry
来源：
Petroleum Chemistry | 2007年 / 47卷 / 2期
关键词：
Petroleum Chemistry; Nickel Catalyst; Relaxation Curve; Copper Catalyst; Methane Formation;
D O I：
暂无
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学科分类号：
摘要：
The mechanism of the reaction of CO2 with H2 on copper and nickel catalysts was studied by means of isotope, non-steady-state, and steady-state methods. Staged schemes of the process were proposed. The slow step of CO formation on the test catalysts is the reaction of the adsorbed carboxylate complex with a hydrogen atom. It was shown that hydrogen adsorption on the copper catalyst is dissociative in character. A formyl complex and hydrogen are involved in the slow step of methane formation on the nickel catalyst. It was found that the methane formation proceeds via a consecutive scheme through CO.
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页码：75 / 82
页数：7
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