TY - JOUR TI - Electrocatalytic Performance of SiO2-SWCNT Nanocomposites Prepared by Electroassisted Deposition AU - Gamero-Quijano, Alonso AU - Huerta Arráez, Francisco AU - Salinas-Torres, David AU - Morallon, Emilia AU - Montilla, Francisco DA - 2013-12 UR - http://hdl.handle.net/10045/38700 AB - 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. KW - Silica-modified electrodes KW - Sol–gel KW - SWCNT-modified electrodes KW - Nanostructured sensors KW - Electroassisted deposition KW - Dopamine sensing DO - 10.1007/s12678-013-0144-3 SN - 1868-2529 (Print) PB - Springer Science+Business Media New York ER -