Electrochemical template-free synthesis of nanofibrous polyaniline modified electrode for ascorbic acid determination
Аутори
Popović, NatašaJugović, Branimir
Jokić, Bojan
Knežević Jugović, Zorica
Stevanović, Jasmina S.
Grgur, Branimir
Gvozdenović, Milica M.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 ~ 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 ~ 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. © 2015 The Authors.
Кључне речи:
ascorbic acid / electrocatalysis / electrochemical polymerization / nanofibres / polyanilineИзвор:
International Journal of Electrochemical Science, 2015, 10, 2, 1208-1220Издавач:
- Belgrade : ESG
Финансирање / пројекти:
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Popović, Nataša AU - Jugović, Branimir AU - Jokić, Bojan AU - Knežević Jugović, Zorica AU - Stevanović, Jasmina S. AU - Grgur, Branimir AU - Gvozdenović, Milica M. PY - 2015 UR - https://dais.sanu.ac.rs/123456789/3543 UR - http://www.electrochemsci.org/papers/vol10/100201208.pdf 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 ~ 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 ~ 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. © 2015 The Authors. PB - Belgrade : ESG T2 - International Journal of Electrochemical Science T1 - Electrochemical template-free synthesis of nanofibrous polyaniline modified electrode for ascorbic acid determination SP - 1208 EP - 1220 VL - 10 IS - 2 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 S. and Grgur, Branimir 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 ~ 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 ~ 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. © 2015 The Authors.", publisher = "Belgrade : ESG", journal = "International Journal of Electrochemical Science", title = "Electrochemical template-free synthesis of nanofibrous polyaniline modified electrode for ascorbic acid determination", pages = "1208-1220", volume = "10", number = "2", url = "https://hdl.handle.net/21.15107/rcub_dais_3543" }
Popović, N., Jugović, B., Jokić, B., Knežević Jugović, Z., Stevanović, J. S., Grgur, B.,& Gvozdenović, M. M.. (2015). Electrochemical template-free synthesis of nanofibrous polyaniline modified electrode for ascorbic acid determination. in International Journal of Electrochemical Science Belgrade : ESG., 10(2), 1208-1220. https://hdl.handle.net/21.15107/rcub_dais_3543
Popović N, Jugović B, Jokić B, Knežević Jugović Z, Stevanović JS, Grgur B, 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 S., Grgur, Branimir, 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 .