Direct synthesis of graphitic carbon nanostructures from saccharides and their use as electrocatalytic supports
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Título: | Direct synthesis of graphitic carbon nanostructures from saccharides and their use as electrocatalytic supports |
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Autor/es: | Sevilla Solís, Marta | Sanchis Bermúdez, Carlos | Valdés-Solís Iglesias, Teresa | Morallon, Emilia | Fuertes Arias, Antonio Benito |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales | Instituto Nacional del Carbón (España) |
Palabras clave: | Carbon materials | Electrocatalysis |
Área/s de conocimiento: | Química Física |
Fecha de creación: | 19-sep-2007 |
Fecha de publicación: | 4-mar-2008 |
Editor: | Elsevier |
Cita bibliográfica: | SEVILLA SOLÍS, Marta, et al. “Direct synthesis of graphitic carbon nanostructures from saccharides and their use as electrocatalytic supports”. Carbon. Vol. 46, Issue 6 (May 2008). ISSN 0008-6223, pp. 931-939 |
Resumen: | An easy method is described for fabricating graphitic carbon nanostructures (GCNs) from a variety of saccharides; i.e., a monosaccharide (glucose), a disaccharide (sucrose) and a polysaccharide (starch). The synthesis scheme consists of: (a) impregnation of saccharide with Ni or Fe nitrates, (b) heat treatment under inert atmosphere (N2) up to 900°C or 1000°C and (c) oxidation in liquid phase to selectively recover the graphitic carbon. This procedure leads to GCNs with a variety of morphologies: nanopipes nanocoils and nanocapsules. Such GCNs have a high crystallinity, as shown by TEM/SAED, XRD and Raman analysis. The GCNs were used as supports for platinum nanoparticles, which were well dispersed (Mean Pt size ~2–3 nm). Electrocatalysts thus prepared have electrocatalytic surface areas in the 70–95 m2 g−1 Pt range and exhibit high catalytic activities towards methanol electrooxidation. |
Patrocinador/es: | Financial support for this research work provided by the Spanish MCyT (MAT2005-00262, MAT2004-01479 and FEDER). |
URI: | http://hdl.handle.net/10045/10479 |
ISSN: | 0008-6223 |
DOI: | 10.1016/j.carbon.2008.02.019 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.carbon.2008.02.019 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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CARBON46-08-931.pdf | Versión final (acceso restringido) | 904,35 kB | Adobe PDF | Abrir Solicitar una copia |
Carbon_aceptado.pdf | Versión revisada (acceso libre) | 2,64 MB | Adobe PDF | Abrir Vista previa |
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