The DOI matches its Crossref record.
Exposed Surfaces on Shape‐Controlled Ceria Nanoparticles Revealed through AC‐TEM and Water–Gas Shift Reactivity
Abstract
Aberration‐corrected transmission electron microscopy and high‐angle annular dark field imaging was used to investigate the surface structures and internal defects of CeO 2 nanoparticles (octahedra, rods, and cubes). Further, their catalytic reactivity in the water–gas shift (WGS) reaction and the exposed surface sites by using FTIR spectroscopy were tested. Rods and octahedra expose stable (111) surfaces whereas cubes have primarily (100) facets. Rods also had internal voids and surface steps. The exposed planes are consistent with observed reactivity patterns, and the normalized WGS reactivity of octahedra and rods were similar, but the cubes were more reactive. In situ FTIR spectroscopy showed that rods and octahedra exhibit similar spectra for OH groups and that carbonates and formates formed upon exposure to CO whereas for cubes clear differences were observed. These results provide definitive information on the nature of the exposed surfaces in these CeO 2 nanostructures and their influence on the WGS reactivity.
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Cited by
Fundamentals and Catalytic Applications of CeO 2 -Based Materials
Montini, T., Melchionna, M., Monai, M., & Fornasiero, P. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00603 · Cited by 2,766
Thermally stable single-atom platinum-on-ceria catalysts via atom trapping
Jones, J., Xiong, H., DeLaRiva, A. T., Peterson, E. J., Pham, H., Challa, S. R., Qi, G., Oh, S., Wiebenga, M. H., Pereira Hernández, X. I., et al. (2016) · Science · doi:10.1126/science.aaf8800 · Cited by 2,044
Self-citationShape-Dependent Activity of Ceria in Soot Combustion
Aneggi, E., Wiater, D., de Leitenburg, C., Llorca, J., & Trovarelli, A. (2014) · ACS Catalysis · doi:10.1021/cs400850r · Cited by 440
Zaera, F. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00905 · Cited by 425
Structure-dependent activity of CeO2 supported Ru catalysts for CO2 methanation
Sakpal, T., & Lefferts, L. (2018) · Journal of Catalysis · doi:10.1016/j.jcat.2018.08.027 · Cited by 282
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Metadata
- Authors
- Agarwal, S., Lefferts, L., Mojet, B. L., Ligthart, D. A. J. M., Hensen, E. J. M., Mitchell, D. R. G., Erasmus, W. J., Anderson, B. G., Olivier, E. J., Neethling, J. H., & Datye, A. K.
- Venue
- ChemSusChem
- Publisher
- Wiley
- Published
- 2013-09-24
- Volume
- 6
- Issue
- 10
- Pages
- 1898-1906
- ISSN
- 1864-5631 (ISSN-L)
- 1864-564X
- OpenAlex
- W2103009034
- Cited by
- 166
- References
- 0
- FWCI
- 6.07
- Type
- journal article
- Language
- en
- Open access
- closed
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