Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.
TY - JOUR
AU - Popović, Nataša
AU - Jugović, Branimir
AU - Jokić, Bojan
AU - Knežević-Jugović, Zorica
AU - Stevanović, Jasmina
AU - Grgur, Branimir
AU - Gvozdenović, Milica
PY - 2015
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3007
AB - Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.
PB - Electrochemical Science Group, Beograd
T2 - International Journal of Electrochemical Science
T1 - Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination
EP - 1220
IS - 2
SP - 1208
VL - 10
UR - https://hdl.handle.net/21.15107/rcub_technorep_3007
ER -
@article{
author = "Popović, Nataša and Jugović, Branimir and Jokić, Bojan and Knežević-Jugović, Zorica and Stevanović, Jasmina and Grgur, Branimir and Gvozdenović, Milica",
year = "2015",
abstract = "Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination",
pages = "1220-1208",
number = "2",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3007"
}
Popović, N., Jugović, B., Jokić, B., Knežević-Jugović, Z., Stevanović, J., Grgur, B.,& Gvozdenović, M.. (2015). Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 10(2), 1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007
Popović N, Jugović B, Jokić B, Knežević-Jugović Z, Stevanović J, Grgur B, Gvozdenović M. Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science. 2015;10(2):1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007 .
Popović, Nataša, Jugović, Branimir, Jokić, Bojan, Knežević-Jugović, Zorica, Stevanović, Jasmina, Grgur, Branimir, Gvozdenović, Milica, "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination" in International Journal of Electrochemical Science, 10, no. 2 (2015):1208-1220,
https://hdl.handle.net/21.15107/rcub_technorep_3007 .
