Partial Oxidation of Ethanol to Hydrogen over Ni–Fe Catalysts

被引：6
|
作者：
Weiping Wang
Zhifei Wang
Yan Ding
Jinyu Xi
Gongxuan Lu
机构：
[1] Chinese Academy of Sciences,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics
来源：
Catalysis Letters | 2002年 / 81卷
关键词：
ethanol; partial oxidation; Ni-Fe catalyst; hydrogen;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Catalytic generation of hydrogen by partial oxidation of ethanol over a series of Ni-Fe catalysts has been studied. The catalytic performances have been investigated under various O2 and C2H5OH molar ratios at 473-573 K. These Ni-Fe catalysts showed high activities for the partial oxidation of ethanol to hydrogen. The rate of hydrogen generation increased with the increase of temperature. Among the different Ni-Fe catalysts, Ni50Fe50 had the best activity. The conversion of ethanol reaches 86.91% and selectivity to hydrogen reaches 46.23% at optimum reaction conditions, i.e., O2/C2H5OH =1.5, T=573 K. XRD patterns of the catalysts showed that their main components are spinal-type magnetite and FeNi3 alloy. XPS results indicated that the bulk of catalyst is mainly FeNi3 alloy and the surface is mainly magnetite. The possible mechanism has been discussed.
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页码：63 / 68
页数：5
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