The Balance Between Reactivity and Stability of Modified Oxide Surfaces 
Illustrated by the Behavior of Sulfated Zirconia Catalysts

Klose-Schubert, Barbara S.; Jentoft, Rolf E.; Jentoft, Friederike C.

doi:10.1007/s11244-011-9670-5

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The Balance Between Reactivity and Stability of Modified Oxide Surfaces Illustrated by the Behavior of Sulfated Zirconia Catalysts

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Klose-Schubert, Barbara S.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Jentoft, Rolf E.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
School of Chemical, Biological and Materials Engineering, University of Oklahoma;

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Jentoft, Friederike C.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
School of Chemical, Biological and Materials Engineering, University of Oklahoma;

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Klose-Schubert, B. S., Jentoft, R. E., & Jentoft, F. C. (2011). The Balance Between Reactivity and Stability of Modified Oxide Surfaces Illustrated by the Behavior of Sulfated Zirconia Catalysts. Topics in Catalysis, 54(5-7), 398-414. doi:10.1007/s11244-011-9670-5.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-F1B5-A

Abstract

The stability of a series of sulfated zirconia
catalysts, promoted with up to 2 wt% iron or manganese, in
their calcined state was investigated. Phase composition,
nature of surface sulfate species, degree of hydroxylation,
and butane isomerization activity changed during aging
over months in various atmospheres and during milling.
The metastability of small oxide particles is discussed,
including literature data on alumina, titania and other
oxides. Catalytically active fractions of a material easily
transition into more stable, less active forms.