Artículo

Poggio-Fraccari, E.; Baronetti, G.; Mariño, F. "Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis" (2018) Journal of Electron Spectroscopy and Related Phenomena. 222:1-4
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Abstract:

CePr mixed oxides were previously studied as supports for Water Gas Shift catalysts, considering their promising textural and redox properties arising from the presence of a non-stoichiometric oxide. A very small Ce3+ fraction was observed on those oxides, suggesting that Pr3+ion could be responsible for the enhanced activity. Therefore, in-depth XPS analysis is conducted in the present work in order to determine the Pr3+ fraction by fitting the XPS Pr 3d region. Much higher values of reduced Pr ions than Ce ions were observed, confirming the promoter role of the former. © 2017 Elsevier B.V.

Registro:

Documento: Artículo
Título:Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis
Autor:Poggio-Fraccari, E.; Baronetti, G.; Mariño, F.
Filiación:ITHES, UBA-CONICET, Pabellón de Industrias, Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, 1428, Argentina
Palabras clave:Oxidation state; Pr; XPS; Binary alloys; Cerium alloys; D region; Ions; Praseodymium; Water gas shift; X ray photoelectron spectroscopy; Mixed oxide; Non-stoichiometric; Oxidation state; Pr ions; Redox property; Surface fraction; Water gas shift catalysts; XPS analysis; Praseodymium alloys
Año:2018
Volumen:222
Página de inicio:1
Página de fin:4
DOI: http://dx.doi.org/10.1016/j.elspec.2017.11.003
Título revista:Journal of Electron Spectroscopy and Related Phenomena
Título revista abreviado:J Electron Spectrosc Relat Phenom
ISSN:03682048
CODEN:JESRA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03682048_v222_n_p1_PoggioFraccari

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Citas:

---------- APA ----------
Poggio-Fraccari, E., Baronetti, G. & Mariño, F. (2018) . Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis. Journal of Electron Spectroscopy and Related Phenomena, 222, 1-4.
http://dx.doi.org/10.1016/j.elspec.2017.11.003
---------- CHICAGO ----------
Poggio-Fraccari, E., Baronetti, G., Mariño, F. "Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis" . Journal of Electron Spectroscopy and Related Phenomena 222 (2018) : 1-4.
http://dx.doi.org/10.1016/j.elspec.2017.11.003
---------- MLA ----------
Poggio-Fraccari, E., Baronetti, G., Mariño, F. "Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis" . Journal of Electron Spectroscopy and Related Phenomena, vol. 222, 2018, pp. 1-4.
http://dx.doi.org/10.1016/j.elspec.2017.11.003
---------- VANCOUVER ----------
Poggio-Fraccari, E., Baronetti, G., Mariño, F. Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis. J Electron Spectrosc Relat Phenom. 2018;222:1-4.
http://dx.doi.org/10.1016/j.elspec.2017.11.003