Catalytic Combustion of Methane on Fe-TiO2 Catalysts Prepared by Sol-Gel Method View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-06

AUTHORS

G. Pecchi, P. Reyes, T. López, R. Gómez, A. Moreno, J.L.G. Fierro, A. Martínez-Arias

ABSTRACT

Two different series of titania-supported iron catalysts prepared by the sol-gel method have been characterised and tested in the combustion of methane at atmospheric pressure. In each series, the effect of metal loading (1, 5 and 10 wt%) and gelation pH (3 and 9) were studied. Characterisation data of calcined catalysts, carried out by specific area measurement, TPR, X-ray diffraction, XPS and EPR revealed no significant changes in metal dispersion. The catalytic activity of the solids were evaluated in the combustion of methane under stoichiometric mixture of CH4/O2 from 473 K up to the temperature required for total combustion. The best performance was shown by catalysts having 5 wt.%, which is ascribed to a balance of factors like the presence of a sufficient concentration of iron at the surface, achievement of relatively high dispersion state for iron and the presence of Fe+3 ions incorporated to the lattice of titania. More... »

PAGES

205-214

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1023758819596

DOI

http://dx.doi.org/10.1023/a:1023758819596

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1007927846


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