Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination
Само за регистроване кориснике
2015
Аутори
Popović, NatašaJugović, Branimir
Jokić, Bojan
Knežević-Jugović, Zorica
Stevanović, Jasmina
Grgur, Branimir
Gvozdenović, Milica
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 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.
Кључне речи:
electrochemical polymerization / polyaniline / nanofibres / ascorbic acid / electrocatalysisИзвор:
International Journal of Electrochemical Science, 2015, 10, 2, 1208-1220Издавач:
- Electrochemical Science Group, Beograd
Финансирање / пројекти:
- Електрохемијска синтеза и карактеризација наноструктурираних функционалних материјала за примену у новим технологијама (RS-MESTD-Basic Research (BR or ON)-172046)
Институција/група
Tehnološko-metalurški fakultetTY - 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 .