Electrocatalytic Performance of SiO2-SWCNT Nanocomposites Prepared by Electroassisted Deposition

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Title: Electrocatalytic Performance of SiO2-SWCNT Nanocomposites Prepared by Electroassisted Deposition
Authors: Gamero Quijano, Daniel Alonso | Huerta Arráez, Francisco | Salinas Torres, David | Morallon, Emilia | Montilla, Francisco
Research Group/s: Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Silica-modified electrodes | Sol–gel | SWCNT-modified electrodes | Nanostructured sensors | Electroassisted deposition | Dopamine sensing
Knowledge Area: Química Física | Química Inorgánica
Issue Date: Dec-2013
Publisher: Springer Science+Business Media New York
Citation: Electrocatalysis. 2013, 4(4): 259-266. doi:10.1007/s12678-013-0144-3
Abstract: Composite materials made of porous SiO2 matrices filled with single-walled carbon nanotubes (SWCNTs) were deposited on electrodes by an electroassisted deposition method. The synthesized materials were characterized by several techniques, showing that porous silica prevents the aggregation of SWCNT on the electrodes, as could be observed by transmission electron microscopy and Raman spectroscopy. Different redox probes were employed to test their electrochemical sensing properties. The silica layer allows the permeation of the redox probes to the electrode surface and improves the electrochemical reversibility indicating an electrocatalytic effect by the incorporation of dispersed SWCNT into the silica films.
Sponsor: This work was financed by the following research projects: MAT2010-15273 of the Spanish Ministerio de Economia y Competitividad and FEDER, PROMETEO/2013/038 of the GV, and CIVP16A1821 of the Fundación Ramón Areces. Alonso Gamero-Quijano and David Salinas-Torres acknowledge Generalitat Valenciana (Santiago Grisolia Program) and Ministerio de Economia y Competitividad, respectively, for the funding of their research fellowships.
URI: http://hdl.handle.net/10045/38700
ISSN: 1868-2529 (Print) | 1868-5994 (Online)
DOI: 10.1007/s12678-013-0144-3
Language: eng
Type: info:eu-repo/semantics/article
Rights: The final publication is available at Springer via http://dx.doi.org/10.1007/s12678-013-0144-3
Peer Review: si
Publisher version: http://dx.doi.org/10.1007/s12678-013-0144-3
Appears in Collections:INV - MCMA - Artículos de Revistas
INV - GEPE - Artículos de Revistas

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