Highly efficient ruthenium and ruthenium-platinum cluster-derived nanocatalysts for hydrogen production via ethanol steam reforming
Koh, A.C.W. Leong, W.K. Chen, L. Ang, T.P. Lin, J. Johnson, B.F.G. Khimyak, T.
Koh, A.C.W.
Chen, L.
Ang, T.P.
Lin, J.
Johnson, B.F.G.
Khimyak, T.
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Abstract
Alumina-supported Ru and Ru-Pt nanoparticles, obtained by the decarbonylation of organometallic cluster precursors, were found to be highly active and selective catalysts for ethanol steam reforming. These catalysts outperformed a commercial Ru/Al2O3 catalyst, as well as catalysts that had been prepared from inorganic salts using the conventional impregnation method. The highly dispersed nanoparticles derived from cluster precursors were much smaller than the salt-derived nanoparticles, as evidenced by TEM and powder XRD studies; this might account for the improved catalytic performance of the cluster-derived catalysts. Finally, EDX studies suggest that Pt played a role in resisting coke formation in both cluster- and salt-derived catalysts. © 2007 Elsevier B.V. All rights reserved.
Keywords
Ethanol, Hydrogen, Organometallic cluster, Steam reforming, Supported nanoparticles
Source Title
Catalysis Communications
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Series/Report No.
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Date
2008-01
DOI
10.1016/j.catcom.2007.05.034
Type
Article