TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Enke, Dirk
AU  - Mirčeski, Valentin
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8543
AB  - A simple and facile hydrothermal methodology for preparation of carbon microspheres supported with silver or platinum is presented. Electrocatalytic properties of modified carbon microspheres are tested against the electrochemical reduction reaction of hydrogen peroxide. As revealed by transmission electron microscopy, silver and platinum are immobilized on the surface of carbon microspheres in a form of nanoparticles. In addition, scanning electron microscopy reveals coexistence of smooth surface spherical-shaped carbon microspheres together with clusters that resemble a bunch-of-grapes. Carbon paste electrodes in combination with cyclic and square-wave voltammetry are used to study electrocatalytic properties of carbon microspheres. Voltammetric data are analyzed in light of the theory for simple irreversible electrode reaction. Correlation between experimental and theoretical data implies the highest electrocatalytic effect in the case of silver-modified carbon microspheres, though the electrode mechanism is more complex than theoretically predicted. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Journal of Solid State Electrochemistry
T1  - Electrochemistry of hydrogen peroxide reduction reaction on carbon paste electrodes modified by Ag- and Pt-supported carbon microspheres
VL  - 23
IS  - 4
SP  - 1257
EP  - 1267
DO  - 10.1007/s10008-019-04226-4
ER  - 

@article{
author = "Ranđelović, Marjan S. and Momčilović, Milan Z. and Enke, Dirk and Mirčeski, Valentin",
year = "2019",
abstract = "A simple and facile hydrothermal methodology for preparation of carbon microspheres supported with silver or platinum is presented. Electrocatalytic properties of modified carbon microspheres are tested against the electrochemical reduction reaction of hydrogen peroxide. As revealed by transmission electron microscopy, silver and platinum are immobilized on the surface of carbon microspheres in a form of nanoparticles. In addition, scanning electron microscopy reveals coexistence of smooth surface spherical-shaped carbon microspheres together with clusters that resemble a bunch-of-grapes. Carbon paste electrodes in combination with cyclic and square-wave voltammetry are used to study electrocatalytic properties of carbon microspheres. Voltammetric data are analyzed in light of the theory for simple irreversible electrode reaction. Correlation between experimental and theoretical data implies the highest electrocatalytic effect in the case of silver-modified carbon microspheres, though the electrode mechanism is more complex than theoretically predicted. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Journal of Solid State Electrochemistry",
title = "Electrochemistry of hydrogen peroxide reduction reaction on carbon paste electrodes modified by Ag- and Pt-supported carbon microspheres",
volume = "23",
number = "4",
pages = "1257-1267",
doi = "10.1007/s10008-019-04226-4"
}

Ranđelović, M. S., Momčilović, M. Z., Enke, D.,& Mirčeski, V.. (2019). Electrochemistry of hydrogen peroxide reduction reaction on carbon paste electrodes modified by Ag- and Pt-supported carbon microspheres. in Journal of Solid State Electrochemistry, 23(4), 1257-1267.
https://doi.org/10.1007/s10008-019-04226-4

Ranđelović MS, Momčilović MZ, Enke D, Mirčeski V. Electrochemistry of hydrogen peroxide reduction reaction on carbon paste electrodes modified by Ag- and Pt-supported carbon microspheres. in Journal of Solid State Electrochemistry. 2019;23(4):1257-1267.
doi:10.1007/s10008-019-04226-4 .

Ranđelović, Marjan S., Momčilović, Milan Z., Enke, Dirk, Mirčeski, Valentin, "Electrochemistry of hydrogen peroxide reduction reaction on carbon paste electrodes modified by Ag- and Pt-supported carbon microspheres" in Journal of Solid State Electrochemistry, 23, no. 4 (2019):1257-1267,
https://doi.org/10.1007/s10008-019-04226-4 . .

TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Purenović, Jelena M.
AU  - Dornberg, Gregor
AU  - Barascu, Andrei
AU  - Enke, Dirk
AU  - Zarubica, Aleksandra R.
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S092777571830284X
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7742
AB  - Three types of functional ceramic composites were designed, synthesized and probed for effective sulfide removal from aqueous solutions. The main goal was to examine complex influence of graphite, surpluses of Fe (similar to 4%) and micro-additions of Cu (similar to 0.2%) on the functional features of the composites. The structural, textural, morphological and surface characteristics of the composites were examined in detail by XRD, nitrogen sorption, SEM and FTIR. It has been shown that all composites are solid heterogeneous systems containing amorphous and crystalline phases (graphite, hematite, montmorillonite, quartz, etc.) with pronounced redox activity in contact with sulfide aqueous solutions. Great enhancment of sulfide consumption was detected for composites which contained graphite and it was established that reaction kinetics is fitted to irreversible second-order batch reaction with two reactants. After the treatment of 1 mM S2- solution, using composite dossage of 1 g/dm(3), concentration dropped down to 0.02 mM. In addition, cyclic voltammetry at 50 mV/s revealed the key role of dopants in electrochemical aspect of the process. Obvious boost of S2- uptake is ascribed to numerous electrochemical, chemical and sorption processes on the composite's developed surface.
T2  - Colloids and Surfaces. A: Physicochemical and Engineering Aspects
T1  - Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites
VL  - 549
SP  - 196
EP  - 204
DO  - 10.1016/j.colsurfa.2018.04.014
ER  - 

@article{
author = "Ranđelović, Marjan S. and Momčilović, Milan Z. and Purenović, Jelena M. and Dornberg, Gregor and Barascu, Andrei and Enke, Dirk and Zarubica, Aleksandra R.",
year = "2018",
abstract = "Three types of functional ceramic composites were designed, synthesized and probed for effective sulfide removal from aqueous solutions. The main goal was to examine complex influence of graphite, surpluses of Fe (similar to 4%) and micro-additions of Cu (similar to 0.2%) on the functional features of the composites. The structural, textural, morphological and surface characteristics of the composites were examined in detail by XRD, nitrogen sorption, SEM and FTIR. It has been shown that all composites are solid heterogeneous systems containing amorphous and crystalline phases (graphite, hematite, montmorillonite, quartz, etc.) with pronounced redox activity in contact with sulfide aqueous solutions. Great enhancment of sulfide consumption was detected for composites which contained graphite and it was established that reaction kinetics is fitted to irreversible second-order batch reaction with two reactants. After the treatment of 1 mM S2- solution, using composite dossage of 1 g/dm(3), concentration dropped down to 0.02 mM. In addition, cyclic voltammetry at 50 mV/s revealed the key role of dopants in electrochemical aspect of the process. Obvious boost of S2- uptake is ascribed to numerous electrochemical, chemical and sorption processes on the composite's developed surface.",
journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects",
title = "Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites",
volume = "549",
pages = "196-204",
doi = "10.1016/j.colsurfa.2018.04.014"
}

Ranđelović, M. S., Momčilović, M. Z., Purenović, J. M., Dornberg, G., Barascu, A., Enke, D.,& Zarubica, A. R.. (2018). Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 549, 196-204.
https://doi.org/10.1016/j.colsurfa.2018.04.014

Ranđelović MS, Momčilović MZ, Purenović JM, Dornberg G, Barascu A, Enke D, Zarubica AR. Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2018;549:196-204.
doi:10.1016/j.colsurfa.2018.04.014 .

Ranđelović, Marjan S., Momčilović, Milan Z., Purenović, Jelena M., Dornberg, Gregor, Barascu, Andrei, Enke, Dirk, Zarubica, Aleksandra R., "Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 549 (2018):196-204,
https://doi.org/10.1016/j.colsurfa.2018.04.014 . .