Ferrocene adsorbed into the porous octakis(hydridodimethylsiloxy) silsesquioxane after thermolysis in tetrahydrofuran media: An applied surface for ascorbic acid determination

Author(s)

do Carmo, Devaney Ribeiro ^[1] ; Paim, Leonardo Lataro ^[2] ; Stradiotto, Nelson Ramos ^[2]

Affiliation

^[1] UNESP Univ Estadual Paulista, Dept Fis & Quim, Fac Engn Ilha Solteira, BR-15385000 Ilha Solteira, SP - Brazil

^[2] UNESP Univ Estadual Paulista, Inst Quim Araraquara, BR-14801970 Araraquara, SP - Brazil

• Document type: Journal article
• Source: Materials Research Bulletin; v. 47, n. 4, p. 1028-1033, APR 2012.
• Web of Science Citations: 7

Abstract

Octakis(hydridodimethylsiloxi)silsesquioxane (Q(8)M(8)(H)) was synthesized and Ferrocene was adsorbed in a polymeric net through electrostatic interactions, with anion forming after the cleavage of any siloxy groups (ESFc). The nanostructured materials (Q(8)M(8)(H) and EsFc) were characterized by Fourier transform infrared spectra (FT-IR), nuclear magnetic resonance (NMR), X-ray diffraction (XRD), Thermogravimetric analyses and Voltammetric technique The cyclic voltammograms of the graphite paste electrode modified with ESFc showed one redox couple with E-0' = 0.320 V (1.0 mol L-1 NaCl, v = 50 mV s(-1)), with a diffusion-controlled process and the redox process shows electrocatalytic activity for the oxidation of ascorbic acid. (C) 2012 Elsevier Ltd. All rights reserved. (AU)