TY  - JOUR
AU  - Laušević, Petar
AU  - Pejović, Predrag
AU  - Žugić, Dragana
AU  - Kochnev, Yuri
AU  - Apel, Pavel
AU  - Laušević, Zoran
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7620
AB  - A novel self-supporting carbon thin film flexible supercapacitor electrode with high volumetric and areal capacitance was developed. The increase in capacitance performance is achieved by introducing channels across the carbon thin film using ion-track technology. In the first step of the electrode synthesis, latent tracks are inscribed in the starting polyimide (Kapton) foil by irradiation with 253 MeV Kr ions. Next, macropores in the form of cylindrical channels are formed by selective chemical etching with NaOCl along the ion tracks, creating ion-track polymer. With subsequent carbonization and activation of the ion-track polymer, activated ion-track carbon is produced. A range of samples are obtained by varying the chemical etching time of the irradiated polymer. In addition to channel formation the chemical etching time influences the composition of surface functional groups. The best results are obtained by chemical etching for 40 min, the thickness of the sample is 21 A mu m with channel density 2.4 x 10(6) cm(-2) and average channel diameter 430 nm. Beside cylindrical macro channels this material is mainly microporous with 0.62 nm pore diameter and shows the highest areal (494 mF/cm(2)), volumetric (224 F/cm(3)) and gravimetric (178 F/g) capacitance. As a consequence of channel formation, the rate capability of the supercapacitor was also increased.
T2  - Journal of Materials Science: Materials in Electronics
T1  - Improving thin film flexible supercapacitor electrode properties using ion-track technology
VL  - 29
IS  - 9
SP  - 7489
EP  - 7500
DO  - 10.1007/s10854-018-8740-x
ER  - 

@article{
author = "Laušević, Petar and Pejović, Predrag and Žugić, Dragana and Kochnev, Yuri and Apel, Pavel and Laušević, Zoran",
year = "2018",
abstract = "A novel self-supporting carbon thin film flexible supercapacitor electrode with high volumetric and areal capacitance was developed. The increase in capacitance performance is achieved by introducing channels across the carbon thin film using ion-track technology. In the first step of the electrode synthesis, latent tracks are inscribed in the starting polyimide (Kapton) foil by irradiation with 253 MeV Kr ions. Next, macropores in the form of cylindrical channels are formed by selective chemical etching with NaOCl along the ion tracks, creating ion-track polymer. With subsequent carbonization and activation of the ion-track polymer, activated ion-track carbon is produced. A range of samples are obtained by varying the chemical etching time of the irradiated polymer. In addition to channel formation the chemical etching time influences the composition of surface functional groups. The best results are obtained by chemical etching for 40 min, the thickness of the sample is 21 A mu m with channel density 2.4 x 10(6) cm(-2) and average channel diameter 430 nm. Beside cylindrical macro channels this material is mainly microporous with 0.62 nm pore diameter and shows the highest areal (494 mF/cm(2)), volumetric (224 F/cm(3)) and gravimetric (178 F/g) capacitance. As a consequence of channel formation, the rate capability of the supercapacitor was also increased.",
journal = "Journal of Materials Science: Materials in Electronics",
title = "Improving thin film flexible supercapacitor electrode properties using ion-track technology",
volume = "29",
number = "9",
pages = "7489-7500",
doi = "10.1007/s10854-018-8740-x"
}

Laušević, P., Pejović, P., Žugić, D., Kochnev, Y., Apel, P.,& Laušević, Z.. (2018). Improving thin film flexible supercapacitor electrode properties using ion-track technology. in Journal of Materials Science: Materials in Electronics, 29(9), 7489-7500.
https://doi.org/10.1007/s10854-018-8740-x

Laušević P, Pejović P, Žugić D, Kochnev Y, Apel P, Laušević Z. Improving thin film flexible supercapacitor electrode properties using ion-track technology. in Journal of Materials Science: Materials in Electronics. 2018;29(9):7489-7500.
doi:10.1007/s10854-018-8740-x .

Laušević, Petar, Pejović, Predrag, Žugić, Dragana, Kochnev, Yuri, Apel, Pavel, Laušević, Zoran, "Improving thin film flexible supercapacitor electrode properties using ion-track technology" in Journal of Materials Science: Materials in Electronics, 29, no. 9 (2018):7489-7500,
https://doi.org/10.1007/s10854-018-8740-x . .

TY  - JOUR
AU  - Vasić Anićijević, Dragana D.
AU  - Perović, Ivana M.
AU  - Maslovara, Slađana Lj.
AU  - Brković, Snežana M.
AU  - Žugić, Dragana
AU  - Laušević, Zoran
AU  - Marčeta Kaninski, Milica
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1404
AB  - A systematic ab initio (DFT-GGA) study of adsorption of various oxygen species on graphene has been performed in order to find out general trends and provide a good starting point to analyze the oxidation of more complex carbon materials. Particular attention was paid to finding an appropriate supercell model. According to our findings, atomic O is characterized by stable adsorption on graphene and very strong adsorption on defective graphene. On the other hand, O-2 does not adsorb on graphene and is allowed to diffuse freely to the defect, where it is expected to dissociate into two strongly adsorbed O atoms. The obtained results were compared with available theoretical data in the literature and good agreement was achieved.
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Ab Initio Study of Graphene Interaction with O-2, O, and O-
VL  - 35
IS  - 2
SP  - 271
EP  - 274
DO  - 10.20450/mjcce.2016.1038
ER  - 

@article{
author = "Vasić Anićijević, Dragana D. and Perović, Ivana M. and Maslovara, Slađana Lj. and Brković, Snežana M. and Žugić, Dragana and Laušević, Zoran and Marčeta Kaninski, Milica",
year = "2016",
abstract = "A systematic ab initio (DFT-GGA) study of adsorption of various oxygen species on graphene has been performed in order to find out general trends and provide a good starting point to analyze the oxidation of more complex carbon materials. Particular attention was paid to finding an appropriate supercell model. According to our findings, atomic O is characterized by stable adsorption on graphene and very strong adsorption on defective graphene. On the other hand, O-2 does not adsorb on graphene and is allowed to diffuse freely to the defect, where it is expected to dissociate into two strongly adsorbed O atoms. The obtained results were compared with available theoretical data in the literature and good agreement was achieved.",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Ab Initio Study of Graphene Interaction with O-2, O, and O-",
volume = "35",
number = "2",
pages = "271-274",
doi = "10.20450/mjcce.2016.1038"
}

Vasić Anićijević, D. D., Perović, I. M., Maslovara, S. Lj., Brković, S. M., Žugić, D., Laušević, Z.,& Marčeta Kaninski, M.. (2016). Ab Initio Study of Graphene Interaction with O-2, O, and O-. in Macedonian Journal of Chemistry and Chemical Engineering, 35(2), 271-274.
https://doi.org/10.20450/mjcce.2016.1038

Vasić Anićijević DD, Perović IM, Maslovara SL, Brković SM, Žugić D, Laušević Z, Marčeta Kaninski M. Ab Initio Study of Graphene Interaction with O-2, O, and O-. in Macedonian Journal of Chemistry and Chemical Engineering. 2016;35(2):271-274.
doi:10.20450/mjcce.2016.1038 .

Vasić Anićijević, Dragana D., Perović, Ivana M., Maslovara, Slađana Lj., Brković, Snežana M., Žugić, Dragana, Laušević, Zoran, Marčeta Kaninski, Milica, "Ab Initio Study of Graphene Interaction with O-2, O, and O-" in Macedonian Journal of Chemistry and Chemical Engineering, 35, no. 2 (2016):271-274,
https://doi.org/10.20450/mjcce.2016.1038 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Seović, Mina M.
AU  - Miulović, Snežana M.
AU  - Žugić, Dragana
AU  - Tasić, Gvozden S.
AU  - Šaponjić, Đorđe
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5307
AB  - Catalyst based on cobalt and chrome was investigated as cathode material for hydrogen production process via water electrolysis. Electrocatalytic efficiency of proposed system was studied using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the catalyst obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect of cobalt complex and chrome salt is observed, with its maximum at high temperatures and for high current densities (industrial conditions). The Tafel slopes were found to be around 120 mV and exchange current densities in the range of 10(-3) mA cm(-2) up to 10(-2) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of in situ formed Co-Cr catalyst. This study shows that catalytic performance of Co-Cr was achieved not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II
VL  - 38
IS  - 4
SP  - 1758
EP  - 1764
DO  - 10.1016/j.ijhydene.2012.11.117
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Seović, Mina M. and Miulović, Snežana M. and Žugić, Dragana and Tasić, Gvozden S. and Šaponjić, Đorđe",
year = "2013",
abstract = "Catalyst based on cobalt and chrome was investigated as cathode material for hydrogen production process via water electrolysis. Electrocatalytic efficiency of proposed system was studied using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the catalyst obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect of cobalt complex and chrome salt is observed, with its maximum at high temperatures and for high current densities (industrial conditions). The Tafel slopes were found to be around 120 mV and exchange current densities in the range of 10(-3) mA cm(-2) up to 10(-2) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of in situ formed Co-Cr catalyst. This study shows that catalytic performance of Co-Cr was achieved not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II",
volume = "38",
number = "4",
pages = "1758-1764",
doi = "10.1016/j.ijhydene.2012.11.117"
}

Marčeta Kaninski, M., Seović, M. M., Miulović, S. M., Žugić, D., Tasić, G. S.,& Šaponjić, Đ.. (2013). Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II. in International Journal of Hydrogen Energy, 38(4), 1758-1764.
https://doi.org/10.1016/j.ijhydene.2012.11.117

Marčeta Kaninski M, Seović MM, Miulović SM, Žugić D, Tasić GS, Šaponjić Đ. Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II. in International Journal of Hydrogen Energy. 2013;38(4):1758-1764.
doi:10.1016/j.ijhydene.2012.11.117 .

Marčeta Kaninski, Milica, Seović, Mina M., Miulović, Snežana M., Žugić, Dragana, Tasić, Gvozden S., Šaponjić, Đorđe, "Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II" in International Journal of Hydrogen Energy, 38, no. 4 (2013):1758-1764,
https://doi.org/10.1016/j.ijhydene.2012.11.117 . .

TY  - JOUR
AU  - Tasić, Gvozden S.
AU  - Lacnjevac, Uros
AU  - Tasić, Marijana M.
AU  - Marčeta Kaninski, Milica
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Jovic, Vladimir D.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5510
AB  - In this study, different Ni-W coatings, obtained by cheap and technologically simple electrodeposition method, were examined as potential electrocatalysts for the hydrogen evolution reaction (HER). All electrodepositions were done on a Ni mesh substrate from ammoniacal-citrate bath containing different concentrations of Na2WO4. The influence of deposition parameters, such as deposition current density, pH and composition of ammoniacal-citrate bath on electrocatalytic activity of obtained Ni-W coatings toward HER was examined by polarization curve measurements in 6 M KOH at room temperature. The morphology and tungsten content of the Ni-W coatings were investigated by means of SEM and EDS analysis. All investigated electrodes have shown high electrocatalytic activity for the HER. The samples obtained at higher deposition current densities had the lowest overvoltage for the HER. It has been shown that the plating bath pH value is very important parameter in obtaining active coatings. Results of the analysis of polarization curves, morphology of deposited Ni-W coatings and the content of tungsten in the coatings, indicate that the surface roughness of the coatings is responsible for their catalytic activity towards HER. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser
VL  - 38
IS  - 11
SP  - 4291
EP  - 4297
DO  - 10.1016/j.ijhydene.2013.01.193
ER  - 

@article{
author = "Tasić, Gvozden S. and Lacnjevac, Uros and Tasić, Marijana M. and Marčeta Kaninski, Milica and Nikolić, Vladimir M. and Žugić, Dragana and Jovic, Vladimir D.",
year = "2013",
abstract = "In this study, different Ni-W coatings, obtained by cheap and technologically simple electrodeposition method, were examined as potential electrocatalysts for the hydrogen evolution reaction (HER). All electrodepositions were done on a Ni mesh substrate from ammoniacal-citrate bath containing different concentrations of Na2WO4. The influence of deposition parameters, such as deposition current density, pH and composition of ammoniacal-citrate bath on electrocatalytic activity of obtained Ni-W coatings toward HER was examined by polarization curve measurements in 6 M KOH at room temperature. The morphology and tungsten content of the Ni-W coatings were investigated by means of SEM and EDS analysis. All investigated electrodes have shown high electrocatalytic activity for the HER. The samples obtained at higher deposition current densities had the lowest overvoltage for the HER. It has been shown that the plating bath pH value is very important parameter in obtaining active coatings. Results of the analysis of polarization curves, morphology of deposited Ni-W coatings and the content of tungsten in the coatings, indicate that the surface roughness of the coatings is responsible for their catalytic activity towards HER. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser",
volume = "38",
number = "11",
pages = "4291-4297",
doi = "10.1016/j.ijhydene.2013.01.193"
}

Tasić, G. S., Lacnjevac, U., Tasić, M. M., Marčeta Kaninski, M., Nikolić, V. M., Žugić, D.,& Jovic, V. D.. (2013). Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser. in International Journal of Hydrogen Energy, 38(11), 4291-4297.
https://doi.org/10.1016/j.ijhydene.2013.01.193

Tasić GS, Lacnjevac U, Tasić MM, Marčeta Kaninski M, Nikolić VM, Žugić D, Jovic VD. Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser. in International Journal of Hydrogen Energy. 2013;38(11):4291-4297.
doi:10.1016/j.ijhydene.2013.01.193 .

Tasić, Gvozden S., Lacnjevac, Uros, Tasić, Marijana M., Marčeta Kaninski, Milica, Nikolić, Vladimir M., Žugić, Dragana, Jovic, Vladimir D., "Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser" in International Journal of Hydrogen Energy, 38, no. 11 (2013):4291-4297,
https://doi.org/10.1016/j.ijhydene.2013.01.193 . .

TY  - JOUR
AU  - Žugić, Dragana
AU  - Perović, Ivana M.
AU  - Nikolić, Vladimir M.
AU  - Maslovara, Slađana Lj.
AU  - Marčeta Kaninski, Milica
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5377
AB  - Poly(vinyl alcohol) (PVA) is a polyhydroxy polymer, which is very common in practical applications because of its easy preparation and biodegradability. In this work, the alkaline solid polymer electrolyte membrane, based on potassium hydroxide doped PVA, was proposed for the fuel cell applications, aiming at a new cost-effective, easy preparing and chemical stable alkaline anion exchange membrane using physical cross-linking procedure. The membrane electrode assemblies (MEAs) using KOH doped PVA as membranes, were prepared with commercial platinum catalyst. We have investigated the performance of the solid alkaline fuel cell (SAFC) and results are presented to show current-voltage characteristics.
T2  - International Journal of Electrochemical Science
T1  - Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane
VL  - 8
IS  - 1
SP  - 949
EP  - 957
UR  - https://hdl.handle.net/21.15107/rcub_vinar_5377
ER  - 

@article{
author = "Žugić, Dragana and Perović, Ivana M. and Nikolić, Vladimir M. and Maslovara, Slađana Lj. and Marčeta Kaninski, Milica",
year = "2013",
abstract = "Poly(vinyl alcohol) (PVA) is a polyhydroxy polymer, which is very common in practical applications because of its easy preparation and biodegradability. In this work, the alkaline solid polymer electrolyte membrane, based on potassium hydroxide doped PVA, was proposed for the fuel cell applications, aiming at a new cost-effective, easy preparing and chemical stable alkaline anion exchange membrane using physical cross-linking procedure. The membrane electrode assemblies (MEAs) using KOH doped PVA as membranes, were prepared with commercial platinum catalyst. We have investigated the performance of the solid alkaline fuel cell (SAFC) and results are presented to show current-voltage characteristics.",
journal = "International Journal of Electrochemical Science",
title = "Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane",
volume = "8",
number = "1",
pages = "949-957",
url = "https://hdl.handle.net/21.15107/rcub_vinar_5377"
}

Žugić, D., Perović, I. M., Nikolić, V. M., Maslovara, S. Lj.,& Marčeta Kaninski, M.. (2013). Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane. in International Journal of Electrochemical Science, 8(1), 949-957.
https://hdl.handle.net/21.15107/rcub_vinar_5377

Žugić D, Perović IM, Nikolić VM, Maslovara SL, Marčeta Kaninski M. Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane. in International Journal of Electrochemical Science. 2013;8(1):949-957.
https://hdl.handle.net/21.15107/rcub_vinar_5377 .

Žugić, Dragana, Perović, Ivana M., Nikolić, Vladimir M., Maslovara, Slađana Lj., Marčeta Kaninski, Milica, "Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane" in International Journal of Electrochemical Science, 8, no. 1 (2013):949-957,
https://hdl.handle.net/21.15107/rcub_vinar_5377 .

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Perović, Ivana M.
AU  - Šaponjić, Aleksandra
AU  - Babić, Biljana M.
AU  - Pašti, Igor A.
AU  - Marčeta Kaninski, Milica
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5665
AB  - In this contribution, we present results of electrochemical characterization of prepared tungsten carbide supported palladium and platinum and Vulcan XC-72 supported palladium. These catalysts were employed as anode catalysts in PEMFC and results are compared to commercial platinum catalyst. Platinum seems to be irreplaceable as a proton exchange membrane fuel cell (PEMFC) catalyst for both the anode and the cathode, yet the high price and limited natural resources are holding back the commercialization of the PEMFCs. Tungsten carbide is recognized as promising catalyst support having the best conductivity among interstitial carbides. Higher natural resources and significantly lower price make palladium good candidate for replacement of the platinum catalyst. The presented results show that all prepared catalysts are very active for the hydrogen oxidation reaction. Linear sweep voltammetry curves of Pd/C and Pd/WC show existence of peaks at 0.07 V vs. RHE, which is assigned to absorbed hydrogen. H-2 vertical bar Pd/WC vertical bar Nafion117 vertical bar Pt/C vertical bar O-2 fuel cell has almost the same efficiency and similar power output as commercial platinum catalyst. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Investigation of tungsten carbide supported Pd or Pt as anode catalysts for PEM fuel cells
VL  - 38
IS  - 26
SP  - 11340
EP  - 11345
DO  - 10.1016/j.ijhydene.2013.06.094
ER  - 

@article{
author = "Nikolić, Vladimir M. and Žugić, Dragana and Perović, Ivana M. and Šaponjić, Aleksandra and Babić, Biljana M. and Pašti, Igor A. and Marčeta Kaninski, Milica",
year = "2013",
abstract = "In this contribution, we present results of electrochemical characterization of prepared tungsten carbide supported palladium and platinum and Vulcan XC-72 supported palladium. These catalysts were employed as anode catalysts in PEMFC and results are compared to commercial platinum catalyst. Platinum seems to be irreplaceable as a proton exchange membrane fuel cell (PEMFC) catalyst for both the anode and the cathode, yet the high price and limited natural resources are holding back the commercialization of the PEMFCs. Tungsten carbide is recognized as promising catalyst support having the best conductivity among interstitial carbides. Higher natural resources and significantly lower price make palladium good candidate for replacement of the platinum catalyst. The presented results show that all prepared catalysts are very active for the hydrogen oxidation reaction. Linear sweep voltammetry curves of Pd/C and Pd/WC show existence of peaks at 0.07 V vs. RHE, which is assigned to absorbed hydrogen. H-2 vertical bar Pd/WC vertical bar Nafion117 vertical bar Pt/C vertical bar O-2 fuel cell has almost the same efficiency and similar power output as commercial platinum catalyst. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Investigation of tungsten carbide supported Pd or Pt as anode catalysts for PEM fuel cells",
volume = "38",
number = "26",
pages = "11340-11345",
doi = "10.1016/j.ijhydene.2013.06.094"
}

Nikolić, V. M., Žugić, D., Perović, I. M., Šaponjić, A., Babić, B. M., Pašti, I. A.,& Marčeta Kaninski, M.. (2013). Investigation of tungsten carbide supported Pd or Pt as anode catalysts for PEM fuel cells. in International Journal of Hydrogen Energy, 38(26), 11340-11345.
https://doi.org/10.1016/j.ijhydene.2013.06.094

Nikolić VM, Žugić D, Perović IM, Šaponjić A, Babić BM, Pašti IA, Marčeta Kaninski M. Investigation of tungsten carbide supported Pd or Pt as anode catalysts for PEM fuel cells. in International Journal of Hydrogen Energy. 2013;38(26):11340-11345.
doi:10.1016/j.ijhydene.2013.06.094 .

Nikolić, Vladimir M., Žugić, Dragana, Perović, Ivana M., Šaponjić, Aleksandra, Babić, Biljana M., Pašti, Igor A., Marčeta Kaninski, Milica, "Investigation of tungsten carbide supported Pd or Pt as anode catalysts for PEM fuel cells" in International Journal of Hydrogen Energy, 38, no. 26 (2013):11340-11345,
https://doi.org/10.1016/j.ijhydene.2013.06.094 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Tasić, Gvozden S.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4420
AB  - Hydrogen production via electrolysis of water from alkaline aqueous electrolytes is a well-established conventional technology. However, the cost of hydrogen produced in such a way is high. To improve this process we have investigated in situ activation with Ni-Mo electrocatalytic material for electrodes. This two d-metal combination possesses one of the highest known activities for the HER. Ni-Mo based catalyst was not applied at industrial applications yet, because under industrial conditions (high temperature and concentrated alkaline solution), permanent destruction of the Ni-Mo alloy coating occurs. The most important result of this study is that the Ni-Mo deposit obtained by in situ activation, under industrial conditions, exhibit long term stability and the electrodes retain their high catalytic performance. The process of adding Ni-Mo activating compounds in situ exhibits savings of the energy consumption that can go beyond 20% in some cases. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions
VL  - 36
IS  - 15
SP  - 8864
EP  - 8868
DO  - 10.1016/j.ijhydene.2011.04.144
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Šaponjić, Đorđe and Nikolić, Vladimir M. and Žugić, Dragana and Tasić, Gvozden S.",
year = "2011",
abstract = "Hydrogen production via electrolysis of water from alkaline aqueous electrolytes is a well-established conventional technology. However, the cost of hydrogen produced in such a way is high. To improve this process we have investigated in situ activation with Ni-Mo electrocatalytic material for electrodes. This two d-metal combination possesses one of the highest known activities for the HER. Ni-Mo based catalyst was not applied at industrial applications yet, because under industrial conditions (high temperature and concentrated alkaline solution), permanent destruction of the Ni-Mo alloy coating occurs. The most important result of this study is that the Ni-Mo deposit obtained by in situ activation, under industrial conditions, exhibit long term stability and the electrodes retain their high catalytic performance. The process of adding Ni-Mo activating compounds in situ exhibits savings of the energy consumption that can go beyond 20% in some cases. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions",
volume = "36",
number = "15",
pages = "8864-8868",
doi = "10.1016/j.ijhydene.2011.04.144"
}

Marčeta Kaninski, M., Šaponjić, Đ., Nikolić, V. M., Žugić, D.,& Tasić, G. S.. (2011). Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions. in International Journal of Hydrogen Energy, 36(15), 8864-8868.
https://doi.org/10.1016/j.ijhydene.2011.04.144

Marčeta Kaninski M, Šaponjić Đ, Nikolić VM, Žugić D, Tasić GS. Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions. in International Journal of Hydrogen Energy. 2011;36(15):8864-8868.
doi:10.1016/j.ijhydene.2011.04.144 .

Marčeta Kaninski, Milica, Šaponjić, Đorđe, Nikolić, Vladimir M., Žugić, Dragana, Tasić, Gvozden S., "Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions" in International Journal of Hydrogen Energy, 36, no. 15 (2011):8864-8868,
https://doi.org/10.1016/j.ijhydene.2011.04.144 . .

TY  - JOUR
AU  - Tasić, Gvozden S.
AU  - Maslovara, Slađana Lj.
AU  - Žugić, Dragana
AU  - Maksić, Aleksandar
AU  - Marčeta Kaninski, Milica
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4488
AB  - Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-Mo catalysts obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are around 120 mV and exchange current densities are close to 10(-2) mA cm(-2) (three orders of magnitude higher compared to the bulk Ni). moreover, formed deposit possess high stability during prolonged electrolysis. Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation, the apparent electrochemical surface and the stability of in situ formed Ni-Mo catalyst. Results suggest to significant catalytic performance not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis
VL  - 36
IS  - 18
SP  - 11588
EP  - 11595
DO  - 10.1016/j.ijhydene.2011.06.081
ER  - 

@article{
author = "Tasić, Gvozden S. and Maslovara, Slađana Lj. and Žugić, Dragana and Maksić, Aleksandar and Marčeta Kaninski, Milica",
year = "2011",
abstract = "Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-Mo catalysts obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are around 120 mV and exchange current densities are close to 10(-2) mA cm(-2) (three orders of magnitude higher compared to the bulk Ni). moreover, formed deposit possess high stability during prolonged electrolysis. Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation, the apparent electrochemical surface and the stability of in situ formed Ni-Mo catalyst. Results suggest to significant catalytic performance not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis",
volume = "36",
number = "18",
pages = "11588-11595",
doi = "10.1016/j.ijhydene.2011.06.081"
}

Tasić, G. S., Maslovara, S. Lj., Žugić, D., Maksić, A.,& Marčeta Kaninski, M.. (2011). Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis. in International Journal of Hydrogen Energy, 36(18), 11588-11595.
https://doi.org/10.1016/j.ijhydene.2011.06.081

Tasić GS, Maslovara SL, Žugić D, Maksić A, Marčeta Kaninski M. Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis. in International Journal of Hydrogen Energy. 2011;36(18):11588-11595.
doi:10.1016/j.ijhydene.2011.06.081 .

Tasić, Gvozden S., Maslovara, Slađana Lj., Žugić, Dragana, Maksić, Aleksandar, Marčeta Kaninski, Milica, "Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis" in International Journal of Hydrogen Energy, 36, no. 18 (2011):11588-11595,
https://doi.org/10.1016/j.ijhydene.2011.06.081 . .

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Maksić, Aleksandar
AU  - Šaponjić, Đorđe
AU  - Marčeta Kaninski, Milica
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4498
AB  - There are several problems which are holding back the use of fuel cells. The utilization of fuel cells depends on the start-up costs which are very high due to the use of expensive materials for their construction. In that respect, we describe a cost-effective alkaline fuel cell (AFC) that uses solid, polymer based, membrane instead of conventionaly used, highly concentrated, corrosive, liquid alkaline electrolyte. This approach to AFC is potentially the basis of a simple, low-cost system, that can solve one of the problems of the highly-efficient and environment-friendly AFC. The focus of this paper are low cost composite alkaline membranes, based on poly(vinyl alcohol) (PVA). The PVA matrix is made by solution cast method and gamma irradiation crosslinking. Three different types of membranes are obtained in this manner plain PVA membrane, PVA membrane cross-linked using gamma irradiation (gamma-PVA) and composite PVA membrane doped with Mo (PVA-Mo). These membranes are immersed in the alkaline solution and investigated as anion exchange membranes. The performance of the solid alkaline fuel cells (SAFCs) containing these PVA membranes has been studied under hydrogen and oxygen gas flow on the Pt/C catalyst. Both, gamma-PVA and PVA-Mo membranes are modified to absorb larger amounts of alkaline solution than the PVA membrane, thus greatly improving the performance of the SAFC, in terms of output power. This is clearly indicated in the polarisation curves. The electrochemical impedance spectroscopy measurements during the SAFC operation were also performed to give better insight in the effect observed. Investigation presented in this paper clearly indicates that solid alkaline PVA membranes can be used for the construction of the SAFCs. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells
VL  - 36
IS  - 17
SP  - 11004
EP  - 11010
DO  - 10.1016/j.ijhydene.2011.05.164
ER  - 

@article{
author = "Nikolić, Vladimir M. and Žugić, Dragana and Maksić, Aleksandar and Šaponjić, Đorđe and Marčeta Kaninski, Milica",
year = "2011",
abstract = "There are several problems which are holding back the use of fuel cells. The utilization of fuel cells depends on the start-up costs which are very high due to the use of expensive materials for their construction. In that respect, we describe a cost-effective alkaline fuel cell (AFC) that uses solid, polymer based, membrane instead of conventionaly used, highly concentrated, corrosive, liquid alkaline electrolyte. This approach to AFC is potentially the basis of a simple, low-cost system, that can solve one of the problems of the highly-efficient and environment-friendly AFC. The focus of this paper are low cost composite alkaline membranes, based on poly(vinyl alcohol) (PVA). The PVA matrix is made by solution cast method and gamma irradiation crosslinking. Three different types of membranes are obtained in this manner plain PVA membrane, PVA membrane cross-linked using gamma irradiation (gamma-PVA) and composite PVA membrane doped with Mo (PVA-Mo). These membranes are immersed in the alkaline solution and investigated as anion exchange membranes. The performance of the solid alkaline fuel cells (SAFCs) containing these PVA membranes has been studied under hydrogen and oxygen gas flow on the Pt/C catalyst. Both, gamma-PVA and PVA-Mo membranes are modified to absorb larger amounts of alkaline solution than the PVA membrane, thus greatly improving the performance of the SAFC, in terms of output power. This is clearly indicated in the polarisation curves. The electrochemical impedance spectroscopy measurements during the SAFC operation were also performed to give better insight in the effect observed. Investigation presented in this paper clearly indicates that solid alkaline PVA membranes can be used for the construction of the SAFCs. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells",
volume = "36",
number = "17",
pages = "11004-11010",
doi = "10.1016/j.ijhydene.2011.05.164"
}

Nikolić, V. M., Žugić, D., Maksić, A., Šaponjić, Đ.,& Marčeta Kaninski, M.. (2011). Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells. in International Journal of Hydrogen Energy, 36(17), 11004-11010.
https://doi.org/10.1016/j.ijhydene.2011.05.164

Nikolić VM, Žugić D, Maksić A, Šaponjić Đ, Marčeta Kaninski M. Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells. in International Journal of Hydrogen Energy. 2011;36(17):11004-11010.
doi:10.1016/j.ijhydene.2011.05.164 .

Nikolić, Vladimir M., Žugić, Dragana, Maksić, Aleksandar, Šaponjić, Đorđe, Marčeta Kaninski, Milica, "Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells" in International Journal of Hydrogen Energy, 36, no. 17 (2011):11004-11010,
https://doi.org/10.1016/j.ijhydene.2011.05.164 . .