Self-assembled multilayers of polyalkylviologens on sulfonate-modified gold and indium-tin-oxide electrodes (Articolo in rivista)

Type
Label
  • Self-assembled multilayers of polyalkylviologens on sulfonate-modified gold and indium-tin-oxide electrodes (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jelechem2005.04.003 (literal)
Alternative label
  • Zotti G.; Zecchin S.; Vercelli B.; Berlin A.; Grimoldi S.; Bertoncello R.; Milanese L. (2005)
    Self-assembled multilayers of polyalkylviologens on sulfonate-modified gold and indium-tin-oxide electrodes
    in Journal of electroanalytical chemistry (1992)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Zotti G.; Zecchin S.; Vercelli B.; Berlin A.; Grimoldi S.; Bertoncello R.; Milanese L. (literal)
Pagina inizio
  • 330 (literal)
Pagina fine
  • 339 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.journals.elsevier.com (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 580 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IENI; CNR-ISTM; Dip. di Scienze Chimiche, Universita` di Padova (literal)
Titolo
  • Self-assembled multilayers of polyalkylviologens on sulfonate-modified gold and indium-tin-oxide electrodes (literal)
Abstract
  • Self-assembly (SA) of polyviologens with linear alkyl spacers PVn (n = 3-10) on sulfonate-primed gold and ITO electrode surfaces has been investigated by CV, QCM, XPS and AFM. The polymers form stable and relatively dense monolayers even from 10 ?4 M PVn concentration. The viologen surface density is decreased as n is increased but for n = 10 and on alkylsulfonate-primed surfaces a strong adsorption takes place, with decreased redox potential and very narrow cyclic voltammogram of the absorbed layer due to organized structures on the surface. Stable and regular electrostatically self-assembled (ESA) multilayers are built on sulfonate-primed surfaces with PV3 and polysulfonates. From XPS analysis, the composition of the PVn/polysulfonate multilayers corresponds to a 1:1 ratio of polyanion and polycation charges, i.e., no extra non-polymeric ion is present, independently from the alkane chain length. The rate of electron transfer within the multilayers (diffusion coefficient = ca. 10 ?9 cm2 s ?1) is higher than for analogous bulk materials. ? 2005 Elsevier B.V. All rights reserved. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it