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Opposite Face Sensitivity of CeO2 in Hydrogenation and Oxidation Catalysis

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Vilé, Gianvito, Colussi, Sara, Krumeich, Frank, Trovarelli, Alessandro, Pérez‐Ramírez, Javier·2014·Angewandte Chemie International Edition

Abstract

The determination of structure–performance relationships of ceria in heterogeneous reactions is enabled by the control of the crystal shape and morphology. Whereas the (100) surface, predominantly exposed in nanocubes, is optimal for CO oxidation, the (111) surface, prevalent in conventional polyhedral CeO 2 particles, dominates in C 2 H 2 hydrogenation. This result is attributed to the different oxygen vacancy chemistry on these facets. In contrast to oxidations, hydrogenations on CeO 2 are favored over low‐vacancy surfaces owing to the key role of oxygen on the stabilization of reactive intermediates. The catalytic behavior after ageing at high temperature confirms the inverse face sensitivity of the two reaction families.

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Metadata

Authors
Vilé, G., Colussi, S., Krumeich, F., Trovarelli, A., & Pérez‐Ramírez, J.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2014-08-21
Volume
53
Issue
45
Pages
12069-12072
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2146024685
Cited by
241
References
0
FWCI
9.23
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Opposite Face Sensitivity of CeO2 in Hydrogenation and Oxidation Catalysis. https://app.cochat.ai/papers/10.1002/anie.201406637
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Vilé, G., Colussi, S., Krumeich, F., Trovarelli, A., & Pérez‐Ramírez, J. (2014). Opposite Face Sensitivity of CeO2 in Hydrogenation and Oxidation Catalysis. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201406637

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