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. © 1995 J.C. Baltzer AG, Science Publishers.
CITATION STYLE
Platero, E. E., & Mentruit, M. P. (1994). IR characterization of sulfated zirconia derived from zirconium sulfate. Catalysis Letters, 30(1–4), 31–39. https://doi.org/10.1007/BF00813670
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