English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/97955
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 21 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

Supported Co catalysts prepared as thin films by magnetron sputtering for sodium borohydride and ammonia borane hydrolysis

Autor Paladini, M. ; Arzac, G.M. ; Godinho, V. ; Haro, María C. Jimenez de; Fernández-Camacho, A.
Palabras clave Sodium borohydride
Catalytic hydrolysis
Co thin films
Magnetron sputtering
Fecha de publicación 2014
EditorElsevier
Citación Applied Catalysis B - Environmental, 158-159: 400-409 (2014)
ResumenSupported Co catalysts were prepared for sodium borohydride and ammonia borane hydrolysis by magnetron sputtering for the first time under different conditions. Ni foam was selected as support. Deposition conditions (time, pressure, and power) were varied to improve catalytic activity. A decrease in deposition power from 200 to 50 W, leads to a decrease in crystallite and column size and a higher activity of catalysts. The increase in deposition pressure from 1.5 × 10−2 to 4.5 × 10−2 mbar produces same effect but in this case the enhancement in activity is higher because amorphous materials were obtained. The highest activity for SB hydrolysis was 2650 ml min−1 gcat−1 for the 50 W Co 4.5 (4 h) sample (Ea = 60 ± 2 kJ mol−1). For AB hydrolysis activity for the 50 W Co 3.2 (4 h) sample was similar. Durability of the thin films was tested for both reactions upon cycling (14 cycles). Diluted acid washing was effective to recover the activity for sodium borohydride reaction but not for ammonia borane hydrolysis. The strong Co–NH3 interactions explain the non-efficiency of the acid washing.
Versión del editorhttp://dx.doi.org/10.1016/j.apcatb.2014.04.047
URI http://hdl.handle.net/10261/97955
DOI10.1016/j.apcatb.2014.04.047
Aparece en las colecciones: (ICMS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
1-s2.0-S0926337314002732-main.pdf2,72 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.