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Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide

Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy....

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Autores principales: Fajardo, Humberto V, Longo, Elson, Probst, LuizFD, Valentini, Antoninho, Carreño, NeftalíLV, Nunes, Michael R, Maciel, Adeilton P, Leite, Edson R
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244857/
http://dx.doi.org/10.1007/s11671-008-9135-3
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author Fajardo, Humberto V
Longo, Elson
Probst, LuizFD
Valentini, Antoninho
Carreño, NeftalíLV
Nunes, Michael R
Maciel, Adeilton P
Leite, Edson R
author_facet Fajardo, Humberto V
Longo, Elson
Probst, LuizFD
Valentini, Antoninho
Carreño, NeftalíLV
Nunes, Michael R
Maciel, Adeilton P
Leite, Edson R
author_sort Fajardo, Humberto V
collection PubMed
description Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthesized samples, undoped and doped with the rare earths, were used to promote the ethanol steam reforming reaction. The SnO(2)-based nanoparticles were shown to be active catalysts for the ethanol steam reforming. The surface properties, such as surface area, basicity/base strength distribution, and catalytic activity/selectivity, were influenced by the rare earth doping of SnO(2)and also by the annealing temperatures. Doping led to chemical and micro-structural variations at the surface of the SnO(2)particles. Changes in the catalytic properties of the samples, such as selectivity toward ethylene, may be ascribed to different dopings and annealing temperatures.
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spelling pubmed-32448572011-12-22 Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide Fajardo, Humberto V Longo, Elson Probst, LuizFD Valentini, Antoninho Carreño, NeftalíLV Nunes, Michael R Maciel, Adeilton P Leite, Edson R Nanoscale Res Lett Nano Express Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthesized samples, undoped and doped with the rare earths, were used to promote the ethanol steam reforming reaction. The SnO(2)-based nanoparticles were shown to be active catalysts for the ethanol steam reforming. The surface properties, such as surface area, basicity/base strength distribution, and catalytic activity/selectivity, were influenced by the rare earth doping of SnO(2)and also by the annealing temperatures. Doping led to chemical and micro-structural variations at the surface of the SnO(2)particles. Changes in the catalytic properties of the samples, such as selectivity toward ethylene, may be ascribed to different dopings and annealing temperatures. Springer 2008-05-28 /pmc/articles/PMC3244857/ http://dx.doi.org/10.1007/s11671-008-9135-3 Text en Copyright ©2008 to the authors
spellingShingle Nano Express
Fajardo, Humberto V
Longo, Elson
Probst, LuizFD
Valentini, Antoninho
Carreño, NeftalíLV
Nunes, Michael R
Maciel, Adeilton P
Leite, Edson R
Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title_full Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title_fullStr Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title_full_unstemmed Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title_short Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide
title_sort influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244857/
http://dx.doi.org/10.1007/s11671-008-9135-3
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