Modification of glassy carbon electrode by the electrochemical oxidation of 3-aminophenylcalix[4]pyrrole in nonaqueous media

TANER B., DEVECİ P., ÜSTÜNDAĞ Z., Keskin S., ÖZCAN E., SOLAK A. O.

SURFACE AND INTERFACE ANALYSIS, vol.44, no.2, pp.185-191, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 2
  • Publication Date: 2012
  • Doi Number: 10.1002/sia.3794
  • Journal Name: SURFACE AND INTERFACE ANALYSIS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.185-191
  • Keywords: calix[4]pyrrole, glassy carbon electrode, electrochemical oxidation, surface characterization, X-ray photoelectron spectroscopy, atomic force microscopy, ANION, SURFACES, BINDING, CHEMISTRY, FILMS, XPS, AFM
  • Middle East Technical University Affiliated: Yes

Abstract

3-Aminophenylcalix[4]pyrrole (3APCP) was grafted to a glassy carbon (GC) surface during the electrochemical oxidation process in 0.1 M tetrabutylammoniumtetra-fluoroborate (TBATFB) containing acetonitrile solution. The presence of a surface film was confirmed electrochemically by comparing voltammograms of dopamine and ferricyanide redox probes at the bare and modified electrodes. Reflection-absorption infrared spectroscopy (RAIRS), XPS, atomic force microscopy (AFM), ellipsometry and the contact angle measurements were also employed to characterize 3APCP film on GC electrode. RAIRS analysis revealed that calix[4]pyrrole was bonded to the glassy carbon surface via the etheric linkage. The stability of the modified GC electrode was also studied. Copyright (C) 2011 John Wiley & Sons, Ltd.