Abstract
A beta zeolite modified by treatment with aluminium ions has been characterized by different techniques, such as XRD, XPS, N2 adsorption, and TPD of pyridine and acetonitrile. Compared to the parent zeolite, it has shown some differences concerning the local environment of the aluminium atoms and the distribution of the acid sites. The modified zeolite has been tested as catalyst in a model reaction, i.e. the conversion of methanol to hydrocarbons, where it has exhibited higher activity than the parent zeolite.
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Acknowledgments
The authors wish to acknowledge funding of this research by Ministerio de Ciencia e Innovación (Project MAT2010-18778), Junta de Andalucía (Project P06-FQM-01741) and Fondos Feder. The technical support and facilities from Córdoba University's SCAI is greatly appreciated. D.E. thanks Ministerio de Educación y Ciencia for a teaching and research fellowship.
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Esquivel, D., Cruz-Cabeza, A.J., Jiménez-Sanchidrián, C. et al. Enhanced Concentration of Medium Strength Brönsted Acid Sites in Aluminium-Modified β Zeolite. Catal Lett 142, 112–117 (2012). https://doi.org/10.1007/s10562-011-0736-6
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DOI: https://doi.org/10.1007/s10562-011-0736-6