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Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination

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Authors
Popović, Nataša
Jugović, Branimir
Jokić, Bojan
Knežević-Jugović, Zorica
Stevanović, Jasmina
Grgur, Branimir N.
Gvozdenović, Milica M.
Article (Published version)
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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.
Keywords:
electrochemical polymerization / polyaniline / nanofibres / ascorbic acid / electrocatalysis
Source:
International Journal of Electrochemical Science, 2015, 10, 2, 1208-1220
Publisher:
  • Electrochemical Science Group
Funding / projects:
  • Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)

ISSN: 1452-3981

WoS: 000348365800014

Scopus: 2-s2.0-84921672654
[ Google Scholar ]
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7
Handle
https://hdl.handle.net/21.15107/rcub_dais_3543
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1743
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Popović, Nataša
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Knežević-Jugović, Zorica
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir N.
AU  - Gvozdenović, Milica M.
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1743
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
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination
VL  - 10
IS  - 2
SP  - 1208
EP  - 1220
UR  - https://hdl.handle.net/21.15107/rcub_dais_3543
ER  - 
@article{
author = "Popović, Nataša and Jugović, Branimir and Jokić, Bojan and Knežević-Jugović, Zorica and Stevanović, Jasmina and Grgur, Branimir N. and Gvozdenović, Milica M.",
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",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination",
volume = "10",
number = "2",
pages = "1208-1220",
url = "https://hdl.handle.net/21.15107/rcub_dais_3543"
}
Popović, N., Jugović, B., Jokić, B., Knežević-Jugović, Z., Stevanović, J., Grgur, B. N.,& Gvozdenović, M. M.. (2015). Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science
Electrochemical Science Group., 10(2), 1208-1220.
https://hdl.handle.net/21.15107/rcub_dais_3543
Popović N, Jugović B, Jokić B, Knežević-Jugović Z, Stevanović J, Grgur BN, Gvozdenović MM. 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_dais_3543 .
Popović, Nataša, Jugović, Branimir, Jokić, Bojan, Knežević-Jugović, Zorica, Stevanović, Jasmina, Grgur, Branimir N., Gvozdenović, Milica M., "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_dais_3543 .

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