Güzel, RemziyeEkşi, HasletÜstündağ, ZaferSolak, Ali Osman2024-04-242024-04-242013Güzel, R., Ekşi, H., Üstündaǧ, Z. ve Solak, A.O. (2013). Synthesis, characterization, and application of silver nanoparticle- thiophenol nanocomposite film on the glassy carbon surface. Surface and Interface Analysis, 45(13), 1821–18290142-24211096-9918https://doi.org/10.1002/sia.5328https://hdl.handle.net/11468/14131https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/epdf/10.1002/sia.5328In this study, 4-thiophenol modified glassy carbon electrode was prepared by the reduction of 4-diazothiophenol tetrafluoroborate salt. Silver nanoparticles were attached to the thiophenol modified surface to prepare a thiophenol-silver nanoparticle composite film. 4-Aminothiopenol molecules were deposited by self-assembling technique to form multi-layered nanofilms of TP/SNP/PhNH2 on glassy carbon substrate. These surfaces were characterized by cyclic voltammetry, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy, reflectance-absorption infrared spectroscopy, and ellipsometry at each multilayer film growth process. Atomic force microscopic images of GC/TP/SNP/PhNH2 surfaces were also acquired. The characterization methods show that the amine group containing surface permits the subsequent modification by a variety of coupling reactions for the immobilization of more complex systems. An application of the electrode modification for the determination of uric acid with a significantly lower detection limit is described. Copyright (c) 2013 John Wiley & Sons, Ltd.eninfo:eu-repo/semantics/closedAccessThiophenol modificationGlassy carbonSilver nanoparticlesDiazonium saltSurface characterizationX-Ray photoelectron spectroscopyEllipsometryUric acidArticle451318211829WOS:0003301067000022-s2.0-8488731695310.1002/sia.5328Q3Q3