The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Structure−Activity Relationship in Nanostructured Copper−Ceria-Based Preferential CO Oxidation Catalysts
Abstract
Two series of nanostructured oxidized copper−cerium catalysts with varying copper loadings, and prepared, respectively, by impregnation of ceria and by coprecipitation of the two components within reverse microemulsions, have been characterized in detail at structural and electronic levels by X-ray diffraction (XRD), Raman spectroscopy, high-resolution electron microscopy (HREM), X-ray energy dispersive spectroscopy (XEDS), X-ray photoelectron spectroscopy (XPS) (including Ar + -sputtering), and X-ray absorption fine structure (XAFS). These results have been correlated with analysis of their catalytic properties for preferential oxidation of CO in a H 2 -rich stream (CO-PROX), complemented by Operando−DRIFTS. A relevant difference between the two series of catalysts concerns the nature of the support for the surface-dispersed copper oxide entities, which is essentially ceria for the samples prepared by impregnation and a Ce−Cu mixed oxide for those prepared by microemulsion−coprecipitation. The existence of copper segregation in the form of copper oxide or copper-enriched Cu−Ce mixed oxides for the latter type of samples is uniquely revealed by nanoprobe XEDS and XPS Ar + -sputtering experiments. The CO oxidation activity under CO-PROX conditions is correlated to the degree of support-promoted reduction achieved by the dispersed copper oxide particles under reaction conditions. Nevertheless, catalysts which display higher CO oxidation activity are generally more efficient also for the undesired H 2 oxidation reaction. The balance between both reactions results in differences in the CO-PROX activity between the two series of catalysts which are examined on the basis of the structural differences found.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Active Nonmetallic Au and Pt Species on Ceria-Based Water-Gas Shift Catalysts
Fu, Q., Saltsburg, H., & Flytzani-Stephanopoulos, M. (2003) · Science · doi:10.1126/science.1085721 · Cited by 2,954
Electron Localization Determines Defect Formation on Ceria Substrates
Esch, F., Fabris, S., Zhou, L., Montini, T., Africh, C., Fornasiero, P., Comelli, G., & Rosei, R. (2005) · Science · doi:10.1126/science.1111568 · Cited by 1,461
Advances in the catalysis of Au nanoparticles
Haruta, M., & Daté, M. (2001) · Applied Catalysis A: General · doi:10.1016/s0926-860x(01)00847-x · Cited by 1,414
Raman and x-ray studies of Ce1−x RE x O2−y, where RE=La, Pr, Nd, Eu, Gd, and Tb
McBride, J. R., Hass, K. C., Poindexter, B. D., & Weber, W. H. (1994) · Journal of Applied Physics · doi:10.1063/1.357593 · Cited by 1,173
Hydrogen and synthesis gas by steam- and C02 reforming
Rostrup-Nielsen, J. R., Sehested, J., & Nørskov, J. K. (2002) · Advances in Catalysis · doi:10.1016/s0360-0564(02)47006-x · Cited by 1,075
Nanostructured Oxides in Chemistry: Characterization and Properties
Fernández-García, M., Martínez-Arias, A., Hanson, J. C., & Rodriguez, J. A. (2004) · Chemical Reviews · doi:10.1021/cr030032f · Cited by 1,035
Self-citationSize-dependent properties ofCeO2−ynanoparticles as studied by Raman scattering
Spanier, J. E., Robinson, R. D., Zhang, F., Chan, S.-W., & Herman, I. P. (2001) · Physical Review B · doi:10.1103/physrevb.64.245407 · Cited by 1,007
Raman study of CeO2 : Second-order scattering, lattice dynamics, and particle-size effects
Weber, W. H., Hass, K. C., & McBride, J. R. (1993) · Physical review. B, Condensed matter · doi:10.1103/physrevb.48.178 · Cited by 943
IR study of polycrystalline ceria properties in oxidised and reduced states
Binet, C., Daturi, M., & Lavalley, J.-C. (1999) · Catalysis Today · doi:10.1016/s0920-5861(98)00504-5 · Cited by 919
Nanocrystalline CeO2 Increases the Activity of Au for CO Oxidation by Two Orders of Magnitude
Carrettin, S., Concepción, P., Corma, A., López Nieto, J. M., & Puntes, V. F. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200353570 · Cited by 865
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
Wang, W.-W., Yu, W.-Z., Du, P.-P., Xu, H., Jin, Z., Si, R., Ma, C., Shi, S., Jia, C.-J., & Yan, C.-H. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b03234 · Cited by 444
Cárdenas-Arenas, A., Quindimil, A., Davó-Quiñonero, A., Bailón-García, E., Lozano-Castelló, D., De-La-Torre, U., Pereda-Ayo, B., González-Marcos, J. A., González-Velasco, J. R., & Bueno-López, A. (2020) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2019.118538 · Cited by 419
Park, J. B., Graciani, J., Evans, J., Stacchiola, D., Senanayake, S. D., Barrio, L., Liu, P., Sanz, J. F., Hrbek, J., & Rodriguez, J. A. (2010) · Journal of the American Chemical Society · doi:10.1021/ja9087677 · Cited by 260
In Situ XRD, XPS, TEM, and TPR Study of Highly Active in CO Oxidation CuO Nanopowders
Svintsitskiy, D. A., Kardash, T. Y., Stonkus, O. A., Slavinskaya, E. M., Stadnichenko, A. I., Koscheev, S. V., Chupakhin, A. P., & Boronin, A. I. (2013) · The Journal of Physical Chemistry C · doi:10.1021/jp403339r · Cited by 256
Metadata
- Authors
- Gamarra, D., Munuera, G., Hungría, A. B., Fernández-García, M., Conesa, J. C., Midgley, P. A., Wang, X. Q., Hanson, J. C., Rodríguez, J. A., & Martínez-Arias, A.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-01
- Volume
- 111
- Issue
- 29
- Pages
- 11026-11038
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W1995761354
- Cited by
- 332
- References
- 32
- FWCI
- 9.32
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
