Enhancement of the Electrochemical Performance of SWCNT dispersed in a Silica Sol-gel Matrix by Reactive Insertion of a Conducting Polymer
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Título: | Enhancement of the Electrochemical Performance of SWCNT dispersed in a Silica Sol-gel Matrix by Reactive Insertion of a Conducting Polymer |
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Autor/es: | Gamero-Quijano, Alonso | Huerta Arráez, Francisco | Salinas-Torres, David | Morallon, Emilia | Montilla, Francisco |
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 |
Palabras clave: | PANI | SWCNT | Sol-gel silica | Hybrid nanocomposite |
Área/s de conocimiento: | Química Física |
Fecha de publicación: | 20-jul-2014 |
Editor: | Elsevier |
Cita bibliográfica: | Electrochimica Acta. 2014, 135: 114-120. doi:10.1016/j.electacta.2014.04.172 |
Resumen: | The electroassisted encapsulation of Single-Walled Carbon Nanotubes was performed into silica matrices (SWCNT@SiO2). This material was used as the host for the potentiostatic growth of polyaniline (PANI) to yield a hybrid nanocomposite electrode, which was then characterized by both electrochemical and imaging techniques. The electrochemical properties of the SWCNT@SiO2-PANI composite material were tested against inorganic (Fe3+/Fe2+) and organic (dopamine) redox probes. It was observed that the electron transfer constants for the electrochemical reactions increased significantly when a dispersion of either SWCNT or PANI was carried out inside of the SiO2 matrix. However, the best results were obtained when polyaniline was grown through the pores of the SWCNT@SiO2 material. The enhanced reversibility of the redox reactions was ascribed to the synergy between the two electrocatalytic components (SWCNTs and PANI) of the composite material. |
Patrocinador/es: | This work was financed by the following research projects: MAT2010-15273 of the Spanish Ministerio de Economia y Competitividad and CIVP16A1821 of the Fundación Ramón Areces and PROMETEO 2013/038 of the Generalitat Valenciana. Alonso Gamero-Quijano is grateful to Generalitat Valenciana (Santiago Grisolia Program) for the funding of his research fellowship. David Salinas-Torres is grateful to Ministerio de Economia y Competitividad for the funding of his research fellowship. |
URI: | http://hdl.handle.net/10045/46335 |
ISSN: | 0013-4686 (Print) | 1873-3859 (Online) |
DOI: | 10.1016/j.electacta.2014.04.172 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2014 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.electacta.2014.04.172 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2014_Gamero_etal_ElectActa_final.pdf | Versión final (acceso restringido) | 1,42 MB | Adobe PDF | Abrir Solicitar una copia |
2014_Gamero_etal_ElectActa_rev.pdf | Versión revisada (acceso abierto) | 867,34 kB | Adobe PDF | Abrir Vista previa |
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