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IR characterization of sulfated zirconia derived from zirconium sulfate

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Abstract

Surface characterization of a sulfate-derived zirconia sample containing approximately 1 wt% S was performed by IR spectroscopy. Several types of sulfate groups were detected which are resistant to heating in vacuo up to 973 K. By using CO as a spectroscopic probe, two kinds of Lewis acid sites were identified which were assigned to surface Zr4+ ions in different environments. Comparison with corresponding data for a nearly sulfate-free zirconia sample showed that sulfated zirconia has an enhanced Lewis acidity.

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Authors and Affiliations

  1. Departamento de Química, Universidad de las Islas Baleares, 07071, Palmade de Mallorca, Spain

    E. Escalona Platero & M. Peñarroya Mentruit

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  1. E. Escalona Platero
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  2. M. Peñarroya Mentruit
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Platero, E.E., Mentruit, M.P. IR characterization of sulfated zirconia derived from zirconium sulfate. Catal Lett 30, 31–39 (1994). https://doi.org/10.1007/BF00813670

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  • DOI: https://doi.org/10.1007/BF00813670

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