English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/115686
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 5 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Understanding the function of support and metal loading on catalytic CO2 reduction using Ru nanoparticles supported on carbon nanofibers

Autor García-Bordejé, Enrique
Palabras clave Carbon nanofibers
Nitrogen doping
Catalyst support
Ruthenium nanoparticles
CO2 hydrogenation
Reaction mechanism
Fecha de publicación 20-abr-2015
EditorJohn Wiley & Sons
Citación ChemCatChem 7(8): 1347-1356 (2015)
ResumenCatalytic CO2 reduction has been performed using carbon nanofibers or nitrogen doped carbon nanofibers as novel support for several Ru contents. The catalyst consisting of 5 wt% Ru on nitrogen doped carbon nanofiber exhibited the highest conversion at relatively low temperature, complete selectivity to CH4 and stable catalytic performance. The catalytic performance was substantially superior to catalysts supported on carbon nanotubes and akin to the best metal oxide supported catalyst in the literature. The characterisation of the prepared catalyst by transient experiments (CO2-TPD, TPSR and transient response to CO2 removal) revealed that the catalyst support participates actively in the reaction. The Ru content governed the selectivity, either favouring CO formation for lower Ru contents (0.5-2 wt%) or CH4 formation for 5 wt% Ru loading. The mean Ru particle size determined by TEM was similar for the several metal loadings. Therefore, the substantially different selectivity patterns cannot be attributed to structure sensitivity. The higher selectivity to CH4 can be explained by the enhanced supply of 4 Had to the activated COad intermediate, which was demonstrated to be the rate determining step.
Versión del editorhttp://dx.doi.org/10.1002/cctc.201500016
URI http://hdl.handle.net/10261/115686
DOI10.1002/cctc.201500016
E-ISSN1867-3899
Aparece en las colecciones: (ICB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
potprint CHEMCATCHEM 7(8)2015.pdf1,29 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.