TY  - JOUR
AU  - Gojković, Snežana Lj.
AU  - Zečević, Strahinja K.
AU  - Obradović, Maja D.
AU  - Dražić, Dragutin M.
PY  - 1998
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6342
AB  - O-2 reduction on duplex stainless steel was investigated in neutral and alkaline solutions with and without the presence of chloride ions. All polarization curves showed hysteresis with higher reaction rate in positive going sweep than in the negative one. Tafel slopes of about -90 mV dec(-1) in neutral and alkaline solutions without chloride ions and about -150 mV dec(-1) in NaCl solution were obtained. Reaction rate is almost independent on pH in solutions of pH lt 12 while in more alkaline solutions reaction order with respect to OH- ions of about -1 was obtained. Reaction rate and kinetic parameters for O-2 reduction on duplex stainless steel were compared to data for O-2 reduction on pure Fe and great similarity was found.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Corrosion Science
T1  - Oxygen reduction on a duplex stainless steel
VL  - 40
IS  - 6
SP  - 849
EP  - 860
DO  - 10.1016/S0010-938X(98)00004-3
ER  - 

@article{
author = "Gojković, Snežana Lj. and Zečević, Strahinja K. and Obradović, Maja D. and Dražić, Dragutin M.",
year = "1998",
abstract = "O-2 reduction on duplex stainless steel was investigated in neutral and alkaline solutions with and without the presence of chloride ions. All polarization curves showed hysteresis with higher reaction rate in positive going sweep than in the negative one. Tafel slopes of about -90 mV dec(-1) in neutral and alkaline solutions without chloride ions and about -150 mV dec(-1) in NaCl solution were obtained. Reaction rate is almost independent on pH in solutions of pH lt 12 while in more alkaline solutions reaction order with respect to OH- ions of about -1 was obtained. Reaction rate and kinetic parameters for O-2 reduction on duplex stainless steel were compared to data for O-2 reduction on pure Fe and great similarity was found.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Corrosion Science",
title = "Oxygen reduction on a duplex stainless steel",
volume = "40",
number = "6",
pages = "849-860",
doi = "10.1016/S0010-938X(98)00004-3"
}

Gojković, S. Lj., Zečević, S. K., Obradović, M. D.,& Dražić, D. M.. (1998). Oxygen reduction on a duplex stainless steel. in Corrosion Science
Oxford : Pergamon-Elsevier Science Ltd., 40(6), 849-860.
https://doi.org/10.1016/S0010-938X(98)00004-3

Gojković SL, Zečević SK, Obradović MD, Dražić DM. Oxygen reduction on a duplex stainless steel. in Corrosion Science. 1998;40(6):849-860.
doi:10.1016/S0010-938X(98)00004-3 .

Gojković, Snežana Lj., Zečević, Strahinja K., Obradović, Maja D., Dražić, Dragutin M., "Oxygen reduction on a duplex stainless steel" in Corrosion Science, 40, no. 6 (1998):849-860,
https://doi.org/10.1016/S0010-938X(98)00004-3 . .

TY  - JOUR
AU  - Zečević, Strahinja K.
AU  - Dražić, Dragutin M.
AU  - Gojković, Snežana Lj.
PY  - 1991
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4316
AB  - The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was employed. Measurements were taken using the linear sweep technique and the potential step steady-state technique. The H2O2 reduction on iron under these conditions was found to occur on the oxidized surfaces. The E-j polarization curves showed a significant hysteresis which is due to oxide film formation. On less oxidized and/or prereduced surfaces the H2O2 reduction was found to be faster than on more oxidized and/or prepassive surfaces. The reaction order with respect to H2O2 was found to be one. The rate determining step most likely involves the transfer of the first electron to the molecular H2O2. The ionic peroxide form HO-2 was not observed to be an electroactive species. The H2O2 reduction was found to be pH dependent at pH > 11. The observed pH dependence mostly reflects the acid-base equilibrium properties of H2O2 and partially those of the passive iron oxide film. Chloride ions were found not to have any influence on the reaction kinetics.
PB  - Elsevier
T2  - Electrochimica Acta
T1  - Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions
VL  - 36
IS  - 1
SP  - 5
EP  - 14
DO  - 10.1016/0013-4686(91)85172-4
ER  - 

@article{
author = "Zečević, Strahinja K. and Dražić, Dragutin M. and Gojković, Snežana Lj.",
year = "1991",
abstract = "The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was employed. Measurements were taken using the linear sweep technique and the potential step steady-state technique. The H2O2 reduction on iron under these conditions was found to occur on the oxidized surfaces. The E-j polarization curves showed a significant hysteresis which is due to oxide film formation. On less oxidized and/or prereduced surfaces the H2O2 reduction was found to be faster than on more oxidized and/or prepassive surfaces. The reaction order with respect to H2O2 was found to be one. The rate determining step most likely involves the transfer of the first electron to the molecular H2O2. The ionic peroxide form HO-2 was not observed to be an electroactive species. The H2O2 reduction was found to be pH dependent at pH > 11. The observed pH dependence mostly reflects the acid-base equilibrium properties of H2O2 and partially those of the passive iron oxide film. Chloride ions were found not to have any influence on the reaction kinetics.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions",
volume = "36",
number = "1",
pages = "5-14",
doi = "10.1016/0013-4686(91)85172-4"
}

Zečević, S. K., Dražić, D. M.,& Gojković, S. Lj.. (1991). Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions. in Electrochimica Acta
Elsevier., 36(1), 5-14.
https://doi.org/10.1016/0013-4686(91)85172-4

Zečević SK, Dražić DM, Gojković SL. Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions. in Electrochimica Acta. 1991;36(1):5-14.
doi:10.1016/0013-4686(91)85172-4 .

Zečević, Strahinja K., Dražić, Dragutin M., Gojković, Snežana Lj., "Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions" in Electrochimica Acta, 36, no. 1 (1991):5-14,
https://doi.org/10.1016/0013-4686(91)85172-4 . .

TY  - JOUR
AU  - Zečević, Strahinja K.
AU  - Dražić, Dragutin M.
AU  - Gojković, S.
PY  - 1991
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4378
AB  - O2 and H2O2 reduction was studied on Puratronic iron (99.995%) in borate buffer solutions of various pH ranging from 7.4 to 9.8. In solutions of pH < 9.3 the E-j curves are of quite irregular shapes and the limiting current is not established. Yet, in the potential region of the passivation-depassivation peak, a decrease in O2 and H2O2 reduction currents over time was observed. The influence of the passivation parameters (potential, time, speed, atmosphere and presence of H2O2 in the solution) on the degree of the inhibition of O2 and H2O2 reductions was examined. The loss of the electrocatalytic activity of the iron electrode is suggested to be due to the reaction between H2O2 and Fe(II) ions during the iron dissolution process occurring under the passivation-depassivation peak. The product of this reaction is an unconductive film which blocks the active electrode surface.
PB  - Elsevier
T2  - Corrosion Science
T1  - Oxygen reduction on iron-V. Processes in boric acid-borate buffer solutions in the 7.4-9.8 pH range
VL  - 32
IS  - 5-6
SP  - 563
EP  - 576
DO  - 10.1016/0010-938X(91)90107-Z
ER  - 

@article{
author = "Zečević, Strahinja K. and Dražić, Dragutin M. and Gojković, S.",
year = "1991",
abstract = "O2 and H2O2 reduction was studied on Puratronic iron (99.995%) in borate buffer solutions of various pH ranging from 7.4 to 9.8. In solutions of pH < 9.3 the E-j curves are of quite irregular shapes and the limiting current is not established. Yet, in the potential region of the passivation-depassivation peak, a decrease in O2 and H2O2 reduction currents over time was observed. The influence of the passivation parameters (potential, time, speed, atmosphere and presence of H2O2 in the solution) on the degree of the inhibition of O2 and H2O2 reductions was examined. The loss of the electrocatalytic activity of the iron electrode is suggested to be due to the reaction between H2O2 and Fe(II) ions during the iron dissolution process occurring under the passivation-depassivation peak. The product of this reaction is an unconductive film which blocks the active electrode surface.",
publisher = "Elsevier",
journal = "Corrosion Science",
title = "Oxygen reduction on iron-V. Processes in boric acid-borate buffer solutions in the 7.4-9.8 pH range",
volume = "32",
number = "5-6",
pages = "563-576",
doi = "10.1016/0010-938X(91)90107-Z"
}

Zečević, S. K., Dražić, D. M.,& Gojković, S.. (1991). Oxygen reduction on iron-V. Processes in boric acid-borate buffer solutions in the 7.4-9.8 pH range. in Corrosion Science
Elsevier., 32(5-6), 563-576.
https://doi.org/10.1016/0010-938X(91)90107-Z

Zečević SK, Dražić DM, Gojković S. Oxygen reduction on iron-V. Processes in boric acid-borate buffer solutions in the 7.4-9.8 pH range. in Corrosion Science. 1991;32(5-6):563-576.
doi:10.1016/0010-938X(91)90107-Z .

Zečević, Strahinja K., Dražić, Dragutin M., Gojković, S., "Oxygen reduction on iron-V. Processes in boric acid-borate buffer solutions in the 7.4-9.8 pH range" in Corrosion Science, 32, no. 5-6 (1991):563-576,
https://doi.org/10.1016/0010-938X(91)90107-Z . .

TY  - JOUR
AU  - Zečević, Strahinja K.
AU  - Dražić, Dragutin M.
AU  - Gojković, Snežana Lj.
PY  - 1989
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4209
AB  - The kinetics of oxygen reduction were studied on iron in borate and bicarbonate buffered solutions, pH 9.8, using the rotating disk-ring method. Under these conditions O2 reduction occurs both on the oxidized surface and on the oxide-free one, depending on potential. On the oxidized surface the series mechanism was found to be operative. On the oxide-free surface the four-electron reduction was observed, but, due to the very small rate of H2O2 formation with respect to the total reduction current, a reliable distinction between the parallel and series mechanism could not be made. All the rate constants of the O2 and H2O2 reactions on the Fe surface were determined. No catalytic decomposition of H2O2 was found. The kinetics of the O2 reduction reaction is slower on more oxidized surfaces.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions
VL  - 265
IS  - 1-2
SP  - 179
EP  - 193
DO  - 10.1016/0022-0728(89)80188-3
ER  - 

@article{
author = "Zečević, Strahinja K. and Dražić, Dragutin M. and Gojković, Snežana Lj.",
year = "1989",
abstract = "The kinetics of oxygen reduction were studied on iron in borate and bicarbonate buffered solutions, pH 9.8, using the rotating disk-ring method. Under these conditions O2 reduction occurs both on the oxidized surface and on the oxide-free one, depending on potential. On the oxidized surface the series mechanism was found to be operative. On the oxide-free surface the four-electron reduction was observed, but, due to the very small rate of H2O2 formation with respect to the total reduction current, a reliable distinction between the parallel and series mechanism could not be made. All the rate constants of the O2 and H2O2 reactions on the Fe surface were determined. No catalytic decomposition of H2O2 was found. The kinetics of the O2 reduction reaction is slower on more oxidized surfaces.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions",
volume = "265",
number = "1-2",
pages = "179-193",
doi = "10.1016/0022-0728(89)80188-3"
}

Zečević, S. K., Dražić, D. M.,& Gojković, S. Lj.. (1989). Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions. in Journal of Electroanalytical Chemistry
Elsevier., 265(1-2), 179-193.
https://doi.org/10.1016/0022-0728(89)80188-3

Zečević SK, Dražić DM, Gojković SL. Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions. in Journal of Electroanalytical Chemistry. 1989;265(1-2):179-193.
doi:10.1016/0022-0728(89)80188-3 .

Zečević, Strahinja K., Dražić, Dragutin M., Gojković, Snežana Lj., "Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions" in Journal of Electroanalytical Chemistry, 265, no. 1-2 (1989):179-193,
https://doi.org/10.1016/0022-0728(89)80188-3 . .

TY  - JOUR
AU  - Dražić, Dragutin M.
AU  - Zečević, Strahinja K.
AU  - Atanasoski, Radoslav
AU  - Despić, Aleksandar
PY  - 1983
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4415
AB  - Aluminum has been known to exhibit widely different electrochemical properties in different aqueous electrolytes. Thus, OH- ions in strongly alkaline solutions reveal its strong affinity to water by dissolving its protective oxide film. The metal establishes a very negative electrode potential, undergoing violent corrosion resulting in the evolution of hydrogen and the formation of aluminate ions. In this communication, some experiments on the effect of activity promoting anions are presented and a model is forwarded for a possible explanation of the observed phenomena.
PB  - Elsevier
T2  - Electrochimica Acta
T1  - The effect of anions on the electrochemical behaviour of aluminium
VL  - 28
IS  - 5
SP  - 751
EP  - 755
DO  - 10.1016/0013-4686(83)85076-2
ER  - 

@article{
author = "Dražić, Dragutin M. and Zečević, Strahinja K. and Atanasoski, Radoslav and Despić, Aleksandar",
year = "1983",
abstract = "Aluminum has been known to exhibit widely different electrochemical properties in different aqueous electrolytes. Thus, OH- ions in strongly alkaline solutions reveal its strong affinity to water by dissolving its protective oxide film. The metal establishes a very negative electrode potential, undergoing violent corrosion resulting in the evolution of hydrogen and the formation of aluminate ions. In this communication, some experiments on the effect of activity promoting anions are presented and a model is forwarded for a possible explanation of the observed phenomena.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "The effect of anions on the electrochemical behaviour of aluminium",
volume = "28",
number = "5",
pages = "751-755",
doi = "10.1016/0013-4686(83)85076-2"
}

Dražić, D. M., Zečević, S. K., Atanasoski, R.,& Despić, A.. (1983). The effect of anions on the electrochemical behaviour of aluminium. in Electrochimica Acta
Elsevier., 28(5), 751-755.
https://doi.org/10.1016/0013-4686(83)85076-2

Dražić DM, Zečević SK, Atanasoski R, Despić A. The effect of anions on the electrochemical behaviour of aluminium. in Electrochimica Acta. 1983;28(5):751-755.
doi:10.1016/0013-4686(83)85076-2 .

Dražić, Dragutin M., Zečević, Strahinja K., Atanasoski, Radoslav, Despić, Aleksandar, "The effect of anions on the electrochemical behaviour of aluminium" in Electrochimica Acta, 28, no. 5 (1983):751-755,
https://doi.org/10.1016/0013-4686(83)85076-2 . .

TY  - JOUR
AU  - Dražić, Dragutin M.
AU  - Ledinski, Z. V.
AU  - Zečević, Strahinja K.
PY  - 1983
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4427
AB  - Porous carbon air-electrodes activated by CoPC, FePHP, PdPC, PtPC and metal-free PC were studied in 2 mol dm-3 NaCl electrolyte. The activity of heat-treated carbon activated by CoPC was compared to carbon activated by in situ formed Co oxide. All the results show that the main catalytic activity of the catalyst used comes from the central metal atom used, while the chelate or oxide structures serve predominantly to keep the metal in the stable form at the carbon surface. Metal-free phthalocyanine does not show any catalytic activity for oxygen reduction.
PB  - Springer Nature
T2  - Journal of Applied Electrochemistry
T1  - Transition metal catalysts for porous carbon air-electrodes in neutral chloride electrolytes
VL  - 13
IS  - 3
SP  - 337
EP  - 340
DO  - 10.1007/BF00941605
ER  - 

@article{
author = "Dražić, Dragutin M. and Ledinski, Z. V. and Zečević, Strahinja K.",
year = "1983",
abstract = "Porous carbon air-electrodes activated by CoPC, FePHP, PdPC, PtPC and metal-free PC were studied in 2 mol dm-3 NaCl electrolyte. The activity of heat-treated carbon activated by CoPC was compared to carbon activated by in situ formed Co oxide. All the results show that the main catalytic activity of the catalyst used comes from the central metal atom used, while the chelate or oxide structures serve predominantly to keep the metal in the stable form at the carbon surface. Metal-free phthalocyanine does not show any catalytic activity for oxygen reduction.",
publisher = "Springer Nature",
journal = "Journal of Applied Electrochemistry",
title = "Transition metal catalysts for porous carbon air-electrodes in neutral chloride electrolytes",
volume = "13",
number = "3",
pages = "337-340",
doi = "10.1007/BF00941605"
}

Dražić, D. M., Ledinski, Z. V.,& Zečević, S. K.. (1983). Transition metal catalysts for porous carbon air-electrodes in neutral chloride electrolytes. in Journal of Applied Electrochemistry
Springer Nature., 13(3), 337-340.
https://doi.org/10.1007/BF00941605

Dražić DM, Ledinski ZV, Zečević SK. Transition metal catalysts for porous carbon air-electrodes in neutral chloride electrolytes. in Journal of Applied Electrochemistry. 1983;13(3):337-340.
doi:10.1007/BF00941605 .

Dražić, Dragutin M., Ledinski, Z. V., Zečević, Strahinja K., "Transition metal catalysts for porous carbon air-electrodes in neutral chloride electrolytes" in Journal of Applied Electrochemistry, 13, no. 3 (1983):337-340,
https://doi.org/10.1007/BF00941605 . .

TY  - JOUR
AU  - Despić, Aleksandar
AU  - Dražić, Dragutin M.
AU  - Zečević, Strahinja K.
AU  - Atanasoski, Radoslav
PY  - 1981
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4414
AB  - Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of increasingly thick compact oxide layer and maintain a steady oxidation current, and b) a porous oxide layer forming oxidation resulting in layers of significant thickness, rather regular structure and with good adsorbing qualities (representing the basis of decorative anodization processes). The third type of oxidation is recognized, following seemingly normal anodic dissolution kinetics. This type of dissolution has been obtained in chloride, chlorate, and perchlorate solution and in some other electrolytes. In this third type, it has been found recently, however, that a careful elimination of pseudo-ohmic overpotential leads to an unusual type of polarization behavior, whereby after reaching some current density range, the polarization of the aluminum-electrolyte interface alone, decreases with increasing current density in an approximately linear. It is the purpose of this short communication to report in more detail about this phenomenon which is tantamount to the appearance of negative equivalent resistance at the surface.
PB  - Elsevier
T2  - Electrochimica Acta
T1  - Abnormal polarization change in anodic dissolution of aluminium at high current densities
VL  - 26
IS  - 1
SP  - 173
EP  - 177
DO  - 10.1016/0013-4686(81)80021-7
ER  - 

@article{
author = "Despić, Aleksandar and Dražić, Dragutin M. and Zečević, Strahinja K. and Atanasoski, Radoslav",
year = "1981",
abstract = "Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of increasingly thick compact oxide layer and maintain a steady oxidation current, and b) a porous oxide layer forming oxidation resulting in layers of significant thickness, rather regular structure and with good adsorbing qualities (representing the basis of decorative anodization processes). The third type of oxidation is recognized, following seemingly normal anodic dissolution kinetics. This type of dissolution has been obtained in chloride, chlorate, and perchlorate solution and in some other electrolytes. In this third type, it has been found recently, however, that a careful elimination of pseudo-ohmic overpotential leads to an unusual type of polarization behavior, whereby after reaching some current density range, the polarization of the aluminum-electrolyte interface alone, decreases with increasing current density in an approximately linear. It is the purpose of this short communication to report in more detail about this phenomenon which is tantamount to the appearance of negative equivalent resistance at the surface.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "Abnormal polarization change in anodic dissolution of aluminium at high current densities",
volume = "26",
number = "1",
pages = "173-177",
doi = "10.1016/0013-4686(81)80021-7"
}

Despić, A., Dražić, D. M., Zečević, S. K.,& Atanasoski, R.. (1981). Abnormal polarization change in anodic dissolution of aluminium at high current densities. in Electrochimica Acta
Elsevier., 26(1), 173-177.
https://doi.org/10.1016/0013-4686(81)80021-7

Despić A, Dražić DM, Zečević SK, Atanasoski R. Abnormal polarization change in anodic dissolution of aluminium at high current densities. in Electrochimica Acta. 1981;26(1):173-177.
doi:10.1016/0013-4686(81)80021-7 .

Despić, Aleksandar, Dražić, Dragutin M., Zečević, Strahinja K., Atanasoski, Radoslav, "Abnormal polarization change in anodic dissolution of aluminium at high current densities" in Electrochimica Acta, 26, no. 1 (1981):173-177,
https://doi.org/10.1016/0013-4686(81)80021-7 . .