Quasicrystal derived catalyst for steam reforming of methanol

被引：23

作者：

Ngoc, B. Phung ^{[1
]}

Geantet, C. ^{[1
]}

Aouine, M. ^{[1
]}

Bergeret, G. ^{[1
]}

Raffy, S. ^{[2
]}

Marlin, S. ^{[2
]}

机构：

[1] Inst Rech Catalyse & Environm Lyon, F-69626 Villeurbanne, France

[2] St Gobain CREE, F-84306 Cavaillon, France

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 03期

关键词：

quasicrystal; hydrogen production; methanol steam reforming; copper alloys;

D O I：

10.1016/j.ijhydene.2007.11.019

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：

Two alloys of composition Al(59)Cu(25.5)sFe(12.4)B(3) and Al71Cu9.7Fe8.7Cr10.6 were characterized by X-ray diffraction, transmission electron microscopy and scanning electron microscopy. The latter forms a mixture of imperfect icosahedral phase and cubic phase upon rapid solidification from the liquid state. After heat treatment, this alloy transforms into a decagonal quasicrystalline phase. Both alloys can be used as catalysts precursors and transformed into active metallic phases after alkali leaching with a NaOH solution. These catalysts were used for hydrogen production by steam reforming of methanol between 473 and 773 K. The catalytic activities of these treated alloys were compared to that of a reference Cu/ZnO/Al2O3 catalyst. Quasicrystal derived catalysts showed a high catalytic activity for the production of hydrogen. (C) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1000 / 1007

页数：8

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