Effect of the surface oxidation of carbon nanotubes on the selective cyclization of citronellal
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/62487
Título: | Effect of the surface oxidation of carbon nanotubes on the selective cyclization of citronellal |
---|---|
Autor/es: | Dongil, Ana Belén | Pastor Pérez, Laura | Fierro, J.L.G. | Escalona, Néstor | Sepúlveda-Escribano, Antonio |
Grupo/s de investigación o GITE: | Materiales Avanzados |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Carbon nanotubes | Oxidation | Ball-milling | Citronellal | Isomerization | Isopulegol |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 25-ago-2016 |
Editor: | Elsevier |
Cita bibliográfica: | Applied Catalysis A: General. 2016, 524: 25-31. doi:10.1016/j.apcata.2016.05.021 |
Resumen: | Commercial carbon nanotubes have been oxidized with HNO3, H2O2 and air and they have been tested on the cyclization of citronellal. The materials have been characterized by N2 adsorption/desorption isotherms, transmission electron microscopy, X-ray diffraction, temperature programmed desorption, potentiometry titration and X-ray photoelectron spectroscopy. The HNO3-treated samples displayed the largest concentration of carboxylic acids which increased by increasing the oxidation time and by a previous ball-milling treatment. The carboxylic acid groups were found to be the active groups on the reaction and the activity increased by increasing its content. The selectivity to isopulegols was higher (98%) over the most active samples (activity 0.20–0.68 mmol/g min), which has been explained by their smaller pore size caused by the oxidation treatment. The stability of the most active CNT sample was also proved by recycling the catalyst in 3 cycles. |
Patrocinador/es: | Financial support for the present study was received from CON-ICYT Chile, project 3130483 (Postdoctoral), Generalitat Valenciana, Spain (PROMETEOII/2014/004) is also gratefully acknowledged. |
URI: | http://hdl.handle.net/10045/62487 |
ISSN: | 0926-860X (Print) | 1873-3875 (Online) |
DOI: | 10.1016/j.apcata.2016.05.021 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2016 Elsevier B.V. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.apcata.2016.05.021 |
Aparece en las colecciones: | INV - LMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2016_Dongil_etal_ApplCatA_final.pdf | Versión final (acceso restringido) | 867,57 kB | Adobe PDF | Abrir Solicitar una copia |
2016_Dongil_etal_ApplCatA_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,02 MB | Adobe PDF | Abrir Vista previa |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.