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dc.contributor.author
Sieben, Juan Manuel  
dc.contributor.author
Ansón Casaos, A.  
dc.contributor.author
Montilla, F.  
dc.contributor.author
Martínez, M.T.  
dc.contributor.author
Morallón, E.  
dc.date.available
2019-07-23T18:09:28Z  
dc.date.issued
2014-05-10  
dc.identifier.citation
Sieben, Juan Manuel; Ansón Casaos, A.; Montilla, F.; Martínez, M.T.; Morallón, E.; Electrochemical behaviour of different redox probes on single wall carbon nanotube buckypaper-modified electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 135; 10-5-2014; 404-411  
dc.identifier.issn
0013-4686  
dc.identifier.uri
http://hdl.handle.net/11336/80064  
dc.description.abstract
In the present work, the electrochemical properties of single-walled carbon nanotube buckypapers (BPs) were examined in terms of carbon nanotubes nature and preparation conditions. The performance of the different free-standing single wall carbon nanotube sheets was evaluated via cyclic voltammetry of several redox probes in aqueous electrolyte. Significant differences are observed in the electron transfer kinetics of the buckypaper-modified electrodes for both the outer- and inner-sphere redox systems. These differences can be ascribed to the nature of the carbon nanotubes (nanotube diameter, chirality and aspect ratio), surface oxidation degree and type of functionalities. In the case of dopamine, ferrocene/ferrocenium, and quinone/hydroquinone redox systems the voltammetric response should be thought as a complex contribution of different tips and sidewall domains which act as mediators for the electron transfer between the adsorbate species and the molecules in solution. In the other redox systems only nanotube ends are active sites for the electron transfer. It is also interesting to point out that a higher electroactive surface area not always lead to an improvement in the electron transfer rate of various redox systems. In addition, the current densities produced by the redox reactions studied here are high enough to ensure a proper electrochemical signal, which enables the use of BPs in sensing devices.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Pergamon-Elsevier Science Ltd  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Buckypaper  
dc.subject
Electrochemical Properties  
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Redox Probes  
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Single-Walled Carbon Nanotubes  
dc.subject.classification
Otras Ciencias Químicas  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Electrochemical behaviour of different redox probes on single wall carbon nanotube buckypaper-modified electrodes  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-06-10T14:28:53Z  
dc.journal.volume
135  
dc.journal.pagination
404-411  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Sieben, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur; Argentina  
dc.description.fil
Fil: Ansón Casaos, A.. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España  
dc.description.fil
Fil: Montilla, F.. Universidad de Alicante; España  
dc.description.fil
Fil: Martínez, M.T.. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España  
dc.description.fil
Fil: Morallón, E.. Universidad de Alicante; España  
dc.journal.title
Electrochimica Acta  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468614009839  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.electacta.2014.05.016