Journal
CATALYSIS COMMUNICATIONS
Volume 7, Issue 9, Pages 696-700Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2006.02.015
Keywords
hydrogen production; methanol reforming; ZnO/TiO2 catalysts; fuel cell
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It has been proved that a novel class of catalysts containing only titanium and zinc oxides with different Zn/Ti molar ratio is able to produce hydrogen by methanol reforming. Catalysts were characterised by X-ray diffraction. The influence of the reaction temperature, fed composition and catalyst composition were investigated. The best catalyst performances were obtained when chi(Zn) = 0.05. A comparative study on the steam reforming of methanol and combined reforming of methanol reactions was performed at the same conditions. The main by-products were CO, (CH3)(2)O and CH4. Coke was formed when chi(Zn) <= 0.02. In particular it was verified that a proper amount of zinc in the catalyst prevented coke and reduced by-products formation, however if chi(Zn) >= 0.10 it limited the catalyst performances reducing surface area and forming zincite. (c) 2006 Elsevier B.V. All rights reserved.
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