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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/391
Title: Electrocatalytic activity of carbonized nanostructured polyanilines for oxidation reactions: Sensing of nitrite ions and ascorbic acid
Authors: Micić, Darko
Šljukić Paunković, Biljana 
Zujovic, Zoran
Travas-Sejdic, Jadranka
Ćirić-Marjanović, Gordana 
Keywords: ascorbic acid;carbonized nanostructured polyaniline;electrochemical sensor;nitrite ions;nitrogen-containing carbon materials
Issue Date: 20-Feb-2014
Journal: Electrochimica Acta
Abstract: 
A comparative study of the electrocatalytic activity of nitrogen-containing carbon nanomaterials, prepared by the carbonization of nanostructured polyaniline (PANI) salts, for the electrooxidation reactions is presented. Nanostructured PANI salts were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous solution in the presence of 5-sulfosalicylic acid (PANI-SSA), 3,5-dinitrosalicylic acid (PANI-DNSA) as well as without added acid (PANI), and subsequently carbonized to c-PANI-SSA, c-PANI-DNSA and c-PANI, respectively. Glassy carbon tip was modified with nanostructured c-PANIs and used for the investigation of sensing of nitrite and ascorbic acid in aqueous solutions as model analytes by linear sweep voltammetry. All three types of the investigated c-PANIs gave excellent response to the nitrite ions and ascorbic acid electrooxidation. The lowest peak potential for nitrite ion oxidation exhibited c-PANI (+0.87 V vs. SCE), and for ascorbic acid oxidation both c-PANI and c-PANI-SSA (ca. + 0.13 V vs. SCE). Electrochemical data were correlated with structural and textural data obtained by Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, elemental and nitrogen sorption analysis. © 2013 Elsevier Ltd.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/391
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2013.12.069
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry