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Artículo

Cermets Ni/(Ce0.9Ln0.1O1.95) (Ln = Gd, La, Nd and Sm) prepared by solution combustion method as catalysts for hydrogen production by partial oxidation of methane

Alvarez-Galvan, Consuelo; Falcon, HoracioIcon ; Cascos, Vanessa; Troncoso, Loreto; Perez-Ferreras, Susana; Capel-Sanchez, Maricarmen; Campos Martín, Jose Miguel; Alonso, José Antonio; Fierro, José Luis G.
Fecha de publicación: 30/08/2018
Editorial: Pergamon-Elsevier Science Ltd
Revista: International Journal of Hydrogen Energy
ISSN: 0360-3199
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Química Inorgánica y Nuclear

Resumen

Catalysts based on Ni/(Ce0.9Ln0.1O1.95) (Ln = Gd, La, Nd and Sm) have been developed and tested for hydrogen production by partial oxidation of methane. The synthesis method (SCS, solution combustion synthesis) produces macroporous composite materials composed of ceramic (cer, Ce0.9Ln0.1O1.95) and metallic (met, Ni) phases, without the need of an activation stage prior to the catalytic reaction. The catalysts have been characterized by different techniques: X-ray diffraction, N2 adsorption-desorption, Hg porosimetry, Scanning Electron Microscopy, Temperature Programmed Reduction, H2 and O2 pulse chemisorption, X-ray photoelectron spectroscopy and Raman spectroscopy. With the exception of the lanthanum-loaded catalyst, the catalysts are highly active, selective and stable; being the one doped with gadolinium the most efficient. Correlations structure-activity point out that the excellent catalytic performance is related to the high catalytic surface area per unit mass of catalyst and to an appropriate balance of nickel dispersion to oxygen vacancies of the support.
Palabras clave: CERMETS , HYDROGEN , METHANE , PARTIAL OXIDATION , SCS
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/88189
DOI: http://dx.doi.org/10.1016/j.ijhydene.2018.04.025
URL: https://www.sciencedirect.com/science/article/pii/S0360319918311194?via%3Dihub
Colecciones
Articulos(CITEQ)
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Citación
Alvarez-Galvan, Consuelo; Falcon, Horacio; Cascos, Vanessa; Troncoso, Loreto; Perez-Ferreras, Susana; et al.; Cermets Ni/(Ce0.9Ln0.1O1.95) (Ln = Gd, La, Nd and Sm) prepared by solution combustion method as catalysts for hydrogen production by partial oxidation of methane; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 43; 35; 30-8-2018; 16834-16845
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