TY  - JOUR
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Ponomaryova, Elena
AU  - Ryzhkov, I. V.
AU  - Jovanović, M.
AU  - Busatlić, I.
AU  - Volkov-Husović, Tatjana
AU  - Stević, Zoran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3580
AB  - The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash
EP  - 7299
IS  - 8
SP  - 7287
VL  - 12
DO  - 10.20964/2017.08.63
ER  - 

@article{
author = "Martinović, Sanja and Vlahović, Milica and Ponomaryova, Elena and Ryzhkov, I. V. and Jovanović, M. and Busatlić, I. and Volkov-Husović, Tatjana and Stević, Zoran",
year = "2017",
abstract = "The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash",
pages = "7299-7287",
number = "8",
volume = "12",
doi = "10.20964/2017.08.63"
}

Martinović, S., Vlahović, M., Ponomaryova, E., Ryzhkov, I. V., Jovanović, M., Busatlić, I., Volkov-Husović, T.,& Stević, Z.. (2017). Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 12(8), 7287-7299.
https://doi.org/10.20964/2017.08.63

Martinović S, Vlahović M, Ponomaryova E, Ryzhkov IV, Jovanović M, Busatlić I, Volkov-Husović T, Stević Z. Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science. 2017;12(8):7287-7299.
doi:10.20964/2017.08.63 .

Martinović, Sanja, Vlahović, Milica, Ponomaryova, Elena, Ryzhkov, I. V., Jovanović, M., Busatlić, I., Volkov-Husović, Tatjana, Stević, Zoran, "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash" in International Journal of Electrochemical Science, 12, no. 8 (2017):7287-7299,
https://doi.org/10.20964/2017.08.63 . .

TY  - JOUR
AU  - Marinović, Vedrana M.
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanovic, J.
AU  - Nesic, G.
AU  - Stojanović, Milovan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5723
AB  - The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (tau(0.5)) on the TNT concentration were linear in the ranges 4.4 - 303.8 mu M and 0.09 - 4.40 mu M for applied constant current of 0.1 mA. The detection limit was 0.09 mu M. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution
EP  - 1998
IS  - 2
SP  - 1986
VL  - 8
UR  - https://hdl.handle.net/21.15107/rcub_dais_364
ER  - 

@article{
author = "Marinović, Vedrana M. and Marinović, Sanja and Jovanović, M. and Jovanovic, J. and Nesic, G. and Stojanović, Milovan",
year = "2013",
abstract = "The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (tau(0.5)) on the TNT concentration were linear in the ranges 4.4 - 303.8 mu M and 0.09 - 4.40 mu M for applied constant current of 0.1 mA. The detection limit was 0.09 mu M. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution",
pages = "1998-1986",
number = "2",
volume = "8",
url = "https://hdl.handle.net/21.15107/rcub_dais_364"
}

Marinović, V. M., Marinović, S., Jovanović, M., Jovanovic, J., Nesic, G.,& Stojanović, M.. (2013). The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution. in International Journal of Electrochemical Science
Esg, Belgrade., 8(2), 1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364

Marinović VM, Marinović S, Jovanović M, Jovanovic J, Nesic G, Stojanović M. The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution. in International Journal of Electrochemical Science. 2013;8(2):1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364 .

Marinović, Vedrana M., Marinović, Sanja, Jovanović, M., Jovanovic, J., Nesic, G., Stojanović, Milovan, "The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution" in International Journal of Electrochemical Science, 8, no. 2 (2013):1986-1998,
https://hdl.handle.net/21.15107/rcub_dais_364 .

TY  - CONF
AU  - Savić, M.
AU  - Jovanović, M.
AU  - Jovanović, J.
AU  - Petrović, Slobodan
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1549
AB  - A case study is presented that deals with Refinery and Petrochemical Complex, Pancevo, Serbia, in which handling of raw pyrolysis gasoline (RPG) has two possible pathways, i.e,, by pipelines to nearby refinery or transport by river barges to distant refinery. The two alternatives are compared taking into account emissions estimation of VOC and hazardous air pollutants (HAP) and related environmental costs calculations. Case study results show that environmental air pollution is much in the alternative of reloading and ship transport. The value and role of related environmental costs (storages, loading, and transport) as a key component in process of making adequate environmental decisions are discussed. This is an abstract of a paper presented at the 19th International Congress of Chemical and Process Engineering and 7th European Congress of Chemical Engineering (Prague, Czech Republic 8/28/2010-9/1/2010).
PB  - 19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congress of Chemical Engineering, ECCE-7
C3  - 19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congres
T1  - Environmental effects of raw pyrolysis gasoline storage and handling: Case study of refinery and petrochemical complex Pancevo, Serbia
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1549
ER  - 

@conference{
author = "Savić, M. and Jovanović, M. and Jovanović, J. and Petrović, Slobodan",
year = "2010",
abstract = "A case study is presented that deals with Refinery and Petrochemical Complex, Pancevo, Serbia, in which handling of raw pyrolysis gasoline (RPG) has two possible pathways, i.e,, by pipelines to nearby refinery or transport by river barges to distant refinery. The two alternatives are compared taking into account emissions estimation of VOC and hazardous air pollutants (HAP) and related environmental costs calculations. Case study results show that environmental air pollution is much in the alternative of reloading and ship transport. The value and role of related environmental costs (storages, loading, and transport) as a key component in process of making adequate environmental decisions are discussed. This is an abstract of a paper presented at the 19th International Congress of Chemical and Process Engineering and 7th European Congress of Chemical Engineering (Prague, Czech Republic 8/28/2010-9/1/2010).",
publisher = "19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congress of Chemical Engineering, ECCE-7",
journal = "19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congres",
title = "Environmental effects of raw pyrolysis gasoline storage and handling: Case study of refinery and petrochemical complex Pancevo, Serbia",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1549"
}

Savić, M., Jovanović, M., Jovanović, J.,& Petrović, S.. (2010). Environmental effects of raw pyrolysis gasoline storage and handling: Case study of refinery and petrochemical complex Pancevo, Serbia. in 19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congres
19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congress of Chemical Engineering, ECCE-7..
https://hdl.handle.net/21.15107/rcub_technorep_1549

Savić M, Jovanović M, Jovanović J, Petrović S. Environmental effects of raw pyrolysis gasoline storage and handling: Case study of refinery and petrochemical complex Pancevo, Serbia. in 19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congres. 2010;.
https://hdl.handle.net/21.15107/rcub_technorep_1549 .

Savić, M., Jovanović, M., Jovanović, J., Petrović, Slobodan, "Environmental effects of raw pyrolysis gasoline storage and handling: Case study of refinery and petrochemical complex Pancevo, Serbia" in 19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congres (2010),
https://hdl.handle.net/21.15107/rcub_technorep_1549 .

TY  - JOUR
AU  - Marinović, Vedrana M.
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanovic, J.
AU  - Štrbac, Svetlana
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5619
AB  - The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 mu M and 0.11-4.40 mu M for two different scan rates, 200 my s(-1) and 20 mV s(-1), respectively. The detection limit was 0.11 mu M. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile
EP  - 7
IS  - 1
SP  - 1
VL  - 648
DO  - 10.1016/j.jelechem.2010.07.008
ER  - 

@article{
author = "Marinović, Vedrana M. and Marinović, Sanja and Jovanović, M. and Jovanovic, J. and Štrbac, Svetlana",
year = "2010",
abstract = "The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 mu M and 0.11-4.40 mu M for two different scan rates, 200 my s(-1) and 20 mV s(-1), respectively. The detection limit was 0.11 mu M. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile",
pages = "7-1",
number = "1",
volume = "648",
doi = "10.1016/j.jelechem.2010.07.008"
}

Marinović, V. M., Marinović, S., Jovanović, M., Jovanovic, J.,& Štrbac, S.. (2010). The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry
Elsevier., 648(1), 1-7.
https://doi.org/10.1016/j.jelechem.2010.07.008

Marinović VM, Marinović S, Jovanović M, Jovanovic J, Štrbac S. The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry. 2010;648(1):1-7.
doi:10.1016/j.jelechem.2010.07.008 .

Marinović, Vedrana M., Marinović, Sanja, Jovanović, M., Jovanovic, J., Štrbac, Svetlana, "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile" in Journal of Electroanalytical Chemistry, 648, no. 1 (2010):1-7,
https://doi.org/10.1016/j.jelechem.2010.07.008 . .