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Quasicrystalline Catalyst for Steam-Reforming of Methanol

Published online by Cambridge University Press:  17 March 2011

A.P. Tsai  and
M. Yoshimura
A.P. Tsai
Affiliation:
National Research Institute for Metals, Tsukuba 305-0047 and CREST JST, Japan
M. Yoshimura
Affiliation:
Corporate Research Laboratory, Mitsubishi Gas Chemical Co, 22 Wadai, Tsukuba, Ibaraki 300-4247, Japan
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Abstract

Steam reforming of methanol (CH3OH + H2O -> 3H2 + CO2) has been performed on a number of Al-Cu-based stable quasicrystals and related alloys. Alloys leached in NaOH aqueous solution exhibit the highest activity for steam-reforming of methanol. Among the alloys, AlCuFe quasicrystal, after leaching treatment, reveals excellent activity. The production rate of H2 reaches 235 l/kgmin at 573K for steam reforming of methanol. The activity is due to Cu nanoparticles at the surfaces of quasicrystalline grains which are generated by leaching treatment. The quasicrystals have two advantages: one is their brittle nature, which allows them to be crushed efficiently; the other is the involvement of Fe, which suppresses the sintering of Cu particles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 643: Symposium K – Quasicrystals-Preparation, Properties, and Applications , 2000 , K16.4
Copyright
Copyright © Materials Research Society 2001

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