Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation

Francesca Cecchet, Giulia Fioravanti, Massimo Marcaccio, Massimo Margotti, Leonardo Mattiello, Francesco Paolucci, Stefania Rapino, Petra Rudolf

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Ordered thin layers of a spirobifluorene derivative containing an amino group were formed by grafting them onto a self-assembled monolayer (SAM) of 11-mercaptoundecanoic acid (11-MUA) on gold. Either physical (H-bonding) or chemical bonding (activated by EDC1) was investigated. X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy confirmed that both methods can be used to effectively graft 2-amino-9,9′-spirobifluorene molecules onto the SAM surface, giving high surface coverages, with a significantly higher packing in the case of chemisorbed films. EIS measurements also showed that the covalently bonded spirobifluorene SAMs act as an effective barrier to both ion penetration and heterogeneous electron transfer.

Original languageEnglish
Pages (from-to)18427-18432
Number of pages6
JournalJournal of Physical Chemistry B
Volume109
Issue number39
DOIs
Publication statusPublished - Oct 6 2005

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Self assembled monolayers
Surface treatment
X ray photoelectron spectroscopy
Derivatives
Electrodes
electrodes
Electrochemical impedance spectroscopy
Grafts
Gold
electron transfer
penetration
photoelectron spectroscopy
impedance
Ions
gold
acids
Molecules
Acids
Electrons
spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Cecchet, F., Fioravanti, G., Marcaccio, M., Margotti, M., Mattiello, L., Paolucci, F., ... Rudolf, P. (2005). Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation. Journal of Physical Chemistry B, 109(39), 18427-18432. https://doi.org/10.1021/jp051786w

Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation. / Cecchet, Francesca; Fioravanti, Giulia; Marcaccio, Massimo; Margotti, Massimo; Mattiello, Leonardo; Paolucci, Francesco; Rapino, Stefania; Rudolf, Petra.

In: Journal of Physical Chemistry B, Vol. 109, No. 39, 06.10.2005, p. 18427-18432.

Research output: Contribution to journalArticle

Cecchet, F, Fioravanti, G, Marcaccio, M, Margotti, M, Mattiello, L, Paolucci, F, Rapino, S & Rudolf, P 2005, 'Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation', Journal of Physical Chemistry B, vol. 109, no. 39, pp. 18427-18432. https://doi.org/10.1021/jp051786w
Cecchet F, Fioravanti G, Marcaccio M, Margotti M, Mattiello L, Paolucci F et al. Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation. Journal of Physical Chemistry B. 2005 Oct 6;109(39):18427-18432. https://doi.org/10.1021/jp051786w
Cecchet, Francesca ; Fioravanti, Giulia ; Marcaccio, Massimo ; Margotti, Massimo ; Mattiello, Leonardo ; Paolucci, Francesco ; Rapino, Stefania ; Rudolf, Petra. / Electrode surface modification by a spirobifluorene derivative. An XPS and electrochemical investigation. In: Journal of Physical Chemistry B. 2005 ; Vol. 109, No. 39. pp. 18427-18432.
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