Nanorod alumina-supported Ni-Zr-Fe/Al2O3 catalysts for hydrogen production in auto-thermal reforming of ethanol

被引：20
|
作者：
Huang, Lihong
Xie, Jian
Chen, Rongrong
Chu, Deryn [2 ]
Hsu, Andrew T. [1 ]
机构：
[1] Indiana Univ Purdue Univ, Purdue Sch Engn & Technol, Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA
[2] USA, Res Lab, Adelphi, MD 20783 USA
来源：
MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 01期
关键词：
Nanostructures; Electron microscopy; X-ray diffraction; Catalytic properties; BIO-ETHANOL; STEAM; DECOMPOSITION; NANOPARTICLES; MECHANISM;
D O I：
10.1016/j.materresbull.2009.08.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanorod alumina-supported Ni-Zr-Fe/Al2O3 Catalysts were prepared by co-impregnation, characterized by TEM, TIPR, XRD, XPS, and TPD-pyridine, and tested in auto-thermal reforming of ethanol. The characterization results indicate that, with iron and zirconia promotion, the NixFe1-xAl2O4 mixture spinel forms, the valence of the surface Ni species is modified, and the acidity decreases. As a result, during a 30-h test over the Ni-Zr-Fe/Al2O3 catalyst, sintering is restrained, and the selectivity to hydrogen remains around 85.79% without obvious loss, while the un-promoted Ni/Al2O3 shows poor stability and selectivity. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：92 / 96
页数：5
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