Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction
The aim of this work is to study the behavior of Cu and Ni catalysts supported on praseodymium-doped ceria (PDC) for the WGS reaction. Samples were prepared by impregnation of several PDC supports (praseodymium content in the range 0-50 wt%) synthesized by the urea thermal decomposition method. Bare...
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0926860X_v460-461_n_p15_PoggioFraccari http://hdl.handle.net/20.500.12110/paper_0926860X_v460-461_n_p15_PoggioFraccari |
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paper:paper_0926860X_v460-461_n_p15_PoggioFraccari2023-06-08T15:51:42Z Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction Ceria support CO removal Cu-Ni catalysts Hydrogen Praseodymium CO removal Copper and nickel catalysts Cu-Ni catalysts Fixed bed reactor Oxygen storage capacity Praseodymium-doped ceria Thermal decomposition methods Water-gas shift reaction (WGS) Chemical reactors Copper Decomposition Hydrogen Loading Nickel Oxygen Praseodymium Urea Water gas shift Catalyst supports The aim of this work is to study the behavior of Cu and Ni catalysts supported on praseodymium-doped ceria (PDC) for the WGS reaction. Samples were prepared by impregnation of several PDC supports (praseodymium content in the range 0-50 wt%) synthesized by the urea thermal decomposition method. Bare support and catalysts were characterized by BET, XRD, oxygen storage capacity and TPR. The activity tests were carried out in an atmospheric fixed bed reactor, using a CO/H2O/H2/N2 mixture as the feed stream. Doping of ceria with small loading of Pr increases the surface reducibility and the oxygen storage capacity of ceria. Nickel catalysts are more active than copper ones. In both cases, catalysts supported on PDC with 5 Pr wt% are more active than samples supported on pure ceria. Methanation, which is likely to occur on Ni catalysts, is moderated in samples supported on praseodymium-doped ceria. © 2013 Elsevier B.V. All rights reserved. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0926860X_v460-461_n_p15_PoggioFraccari http://hdl.handle.net/20.500.12110/paper_0926860X_v460-461_n_p15_PoggioFraccari |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Ceria support CO removal Cu-Ni catalysts Hydrogen Praseodymium CO removal Copper and nickel catalysts Cu-Ni catalysts Fixed bed reactor Oxygen storage capacity Praseodymium-doped ceria Thermal decomposition methods Water-gas shift reaction (WGS) Chemical reactors Copper Decomposition Hydrogen Loading Nickel Oxygen Praseodymium Urea Water gas shift Catalyst supports |
| spellingShingle |
Ceria support CO removal Cu-Ni catalysts Hydrogen Praseodymium CO removal Copper and nickel catalysts Cu-Ni catalysts Fixed bed reactor Oxygen storage capacity Praseodymium-doped ceria Thermal decomposition methods Water-gas shift reaction (WGS) Chemical reactors Copper Decomposition Hydrogen Loading Nickel Oxygen Praseodymium Urea Water gas shift Catalyst supports Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| topic_facet |
Ceria support CO removal Cu-Ni catalysts Hydrogen Praseodymium CO removal Copper and nickel catalysts Cu-Ni catalysts Fixed bed reactor Oxygen storage capacity Praseodymium-doped ceria Thermal decomposition methods Water-gas shift reaction (WGS) Chemical reactors Copper Decomposition Hydrogen Loading Nickel Oxygen Praseodymium Urea Water gas shift Catalyst supports |
| description |
The aim of this work is to study the behavior of Cu and Ni catalysts supported on praseodymium-doped ceria (PDC) for the WGS reaction. Samples were prepared by impregnation of several PDC supports (praseodymium content in the range 0-50 wt%) synthesized by the urea thermal decomposition method. Bare support and catalysts were characterized by BET, XRD, oxygen storage capacity and TPR. The activity tests were carried out in an atmospheric fixed bed reactor, using a CO/H2O/H2/N2 mixture as the feed stream. Doping of ceria with small loading of Pr increases the surface reducibility and the oxygen storage capacity of ceria. Nickel catalysts are more active than copper ones. In both cases, catalysts supported on PDC with 5 Pr wt% are more active than samples supported on pure ceria. Methanation, which is likely to occur on Ni catalysts, is moderated in samples supported on praseodymium-doped ceria. © 2013 Elsevier B.V. All rights reserved. |
| title |
Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| title_short |
Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| title_full |
Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| title_fullStr |
Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| title_full_unstemmed |
Copper and nickel catalysts supported on praseodymium-doped ceria (PDC) for the water-gas shift reaction |
| title_sort |
copper and nickel catalysts supported on praseodymium-doped ceria (pdc) for the water-gas shift reaction |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0926860X_v460-461_n_p15_PoggioFraccari http://hdl.handle.net/20.500.12110/paper_0926860X_v460-461_n_p15_PoggioFraccari |
| _version_ |
1768541901701513216 |