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Título: | 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 |
Autor: | Álvarez Galván, María Consuelo; Falcon, Horacio CSIC; Cascos, Vanessa CSIC ORCID; Troncoso, Loreto; Pérez Ferreras, Susana CSIC ORCID ; Capel Sánchez, María del Carmen; Campos Martín, José Miguel CSIC ORCID CVN ; Alonso, J. A. CSIC ORCID; García Fierro, José Luis CSIC ORCID | Palabras clave: | Cermets SCS Methane Partial oxidation Hydrogen |
Fecha de publicación: | 2018 | Editor: | Pergamon Press | Citación: | International Journal of Hydrogen Energy 43: 16834- 16845 (2018) | Resumen: | [EN] Catalysts based on Ni/(CeLnO) (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, CeLnO) 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, N adsorption-desorption, Hg porosimetry, Scanning Electron Microscopy, Temperature Programmed Reduction, H and O 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. | Versión del editor: | http://dx.doi.org/10.1016/j.ijhydene.2018.04.025 | URI: | http://hdl.handle.net/10261/211570 | DOI: | 10.1016/j.ijhydene.2018.04.025 | Identificadores: | doi: 10.1016/j.ijhydene.2018.04.025 issn: 0360-3199 |
Aparece en las colecciones: | (ICP) Artículos (ICMM) Artículos |
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