Activity and stability of Au/CeO2-Fe2O3 catalysts for the hydrogen production via oxidative steam reforming of methanol

被引：31
|
作者：
Pojanavaraphan, Chinchanop [1 ]
Satitthai, Umpawan [1 ]
Luengnaruemitchai, Apanee [1 ]
Gulari, Erdogan [2 ]
机构：
[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand
[2] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 22卷
关键词：
Oxidative steam reforming; Methanol; Hydrogen; Au catalyst; Fe2O3; WATER-GAS SHIFT; GOLD CATALYSTS; CO; CEO2; PERFORMANCE; SUPPORT; COMBUSTION; AU/FE2O3; ETHANOL; AU;
D O I：
10.1016/j.jiec.2014.06.023
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The catalytic performance of Au/CeO2-Fe2O3 prepared by deposition-precipitation for oxidative steam reforming of methanol was investigated. It was found that the 3 wt% Au/CeO2-Fe2O3 with Ce/(Ce + Fe) = 0.25 calcined at 300 degrees C exhibited the highest methanol conversion and H-2 concentration in the temperature range of 200-400 degrees C. The H-2-TPR, XPS, and XRD studies suggested improvements in metal-metal, metal-support, and support-support interactions. The co-existence of free alpha-Fe2O3 and the Ce1-xFexO2 solid solution phases seemed to be necessary for high activity. Additionally, the Au/CeO2Fe2O3 displayed a long life-time, even in the presence of coke deposition and transformation of the solid solution phase. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V.All rights reserved.
引用
收藏
页码：41 / 52
页数：12
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