Jokic, Bojan M

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  • Jokic, Bojan M (2)
  • Jokic, Bojan (1)
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Author's Bibliography

Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers

Dmitrović, Svetlana; Prekajski, Marija; Jokic, Bojan; Branković, Goran; Zarubica, Aleksandra; Zikic, Vladimir; Matović, Branko

(Savez hemijskih inženjera, Beograd, 2018)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Prekajski, Marija
AU  - Jokic, Bojan
AU  - Branković, Goran
AU  - Zarubica, Aleksandra
AU  - Zikic, Vladimir
AU  - Matović, Branko
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1132
AB  - Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)(2), brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxide fibers were synthesized by hydration of MgO fibers at 50, 70 and 90 degrees C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)(2) fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)(2) fibers was noticed to be covered with brucite in a form of plates. X-Ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)(2) fibers were two-or single-phased brucite depending on incubation period, and/or incubation temperature.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers
EP  - 28
IS  - 1
SP  - 23
VL  - 72
DO  - 10.2298/HEMIND170404018D
ER  - 
@article{
author = "Dmitrović, Svetlana and Prekajski, Marija and Jokic, Bojan and Branković, Goran and Zarubica, Aleksandra and Zikic, Vladimir and Matović, Branko",
year = "2018",
abstract = "Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)(2), brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxide fibers were synthesized by hydration of MgO fibers at 50, 70 and 90 degrees C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)(2) fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)(2) fibers was noticed to be covered with brucite in a form of plates. X-Ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)(2) fibers were two-or single-phased brucite depending on incubation period, and/or incubation temperature.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers",
pages = "28-23",
number = "1",
volume = "72",
doi = "10.2298/HEMIND170404018D"
}
Dmitrović, S., Prekajski, M., Jokic, B., Branković, G., Zarubica, A., Zikic, V.,& Matović, B.. (2018). Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 72(1), 23-28.
https://doi.org/10.2298/HEMIND170404018D
Dmitrović S, Prekajski M, Jokic B, Branković G, Zarubica A, Zikic V, Matović B. Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska Industrija. 2018;72(1):23-28.
doi:10.2298/HEMIND170404018D .
Dmitrović, Svetlana, Prekajski, Marija, Jokic, Bojan, Branković, Goran, Zarubica, Aleksandra, Zikic, Vladimir, Matović, Branko, "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers" in Hemijska Industrija, 72, no. 1 (2018):23-28,
https://doi.org/10.2298/HEMIND170404018D . .
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Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes

Nikolic, Nebojša D; Vastag, Djendji Dj; Živković, Predrag M.; Jokic, Bojan M; Branković, Goran

(Elsevier Science Bv, Amsterdam, 2013)

TY  - JOUR
AU  - Nikolic, Nebojša D
AU  - Vastag, Djendji Dj
AU  - Živković, Predrag M.
AU  - Jokic, Bojan M
AU  - Branković, Goran
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/719
AB  - The processes of lead electrodeposition from the basic (nitrate) and complex (acetate) electrolytes were mutually compared by the analysis of their polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of formed deposits. Although the polarization characteristics of lead recorded from these two electrolytes were relatively similar to each other, the shape of formed dendrites strongly depended on the type of electrolyte. The dendrites composed of stalk and weak developed primary branches (the primary (P) type) were predominantly formed from the basic electrolyte. On the other hand, the very branchy dendrites composed of stalk and of both primary and secondary branches (the secondary (S) type) were mainly electrodeposited from the complex electrolyte. Considering the fact that the application of lead powder in many technologies is closely related with its surface morphology, the special attention was given to the analysis of the type of electrolytes on formation of the different dendritic forms. It was shown that formation of more branchy dendrites from the acetate electrolyte can be ascribed to the lower exchange current density (or to the lower rate of electrochemical process) for this electrolyte than for the nitrate one due to the process of complex formation.
PB  - Elsevier Science Bv, Amsterdam
T2  - Advanced Powder Technology
T1  - Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes
EP  - 682
IS  - 3
SP  - 674
VL  - 24
DO  - 10.1016/j.apt.2012.12.008
ER  - 
@article{
author = "Nikolic, Nebojša D and Vastag, Djendji Dj and Živković, Predrag M. and Jokic, Bojan M and Branković, Goran",
year = "2013",
abstract = "The processes of lead electrodeposition from the basic (nitrate) and complex (acetate) electrolytes were mutually compared by the analysis of their polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of formed deposits. Although the polarization characteristics of lead recorded from these two electrolytes were relatively similar to each other, the shape of formed dendrites strongly depended on the type of electrolyte. The dendrites composed of stalk and weak developed primary branches (the primary (P) type) were predominantly formed from the basic electrolyte. On the other hand, the very branchy dendrites composed of stalk and of both primary and secondary branches (the secondary (S) type) were mainly electrodeposited from the complex electrolyte. Considering the fact that the application of lead powder in many technologies is closely related with its surface morphology, the special attention was given to the analysis of the type of electrolytes on formation of the different dendritic forms. It was shown that formation of more branchy dendrites from the acetate electrolyte can be ascribed to the lower exchange current density (or to the lower rate of electrochemical process) for this electrolyte than for the nitrate one due to the process of complex formation.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Advanced Powder Technology",
title = "Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes",
pages = "682-674",
number = "3",
volume = "24",
doi = "10.1016/j.apt.2012.12.008"
}
Nikolic, N. D., Vastag, D. D., Živković, P. M., Jokic, B. M.,& Branković, G.. (2013). Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes. in Advanced Powder Technology
Elsevier Science Bv, Amsterdam., 24(3), 674-682.
https://doi.org/10.1016/j.apt.2012.12.008
Nikolic ND, Vastag DD, Živković PM, Jokic BM, Branković G. Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes. in Advanced Powder Technology. 2013;24(3):674-682.
doi:10.1016/j.apt.2012.12.008 .
Nikolic, Nebojša D, Vastag, Djendji Dj, Živković, Predrag M., Jokic, Bojan M, Branković, Goran, "Influence of the complex formation on the morphology of lead powder particles produced by the electrodeposition processes" in Advanced Powder Technology, 24, no. 3 (2013):674-682,
https://doi.org/10.1016/j.apt.2012.12.008 . .
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Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte

Bucko, Mihael M; Rogan, Jelena; Jokic, Bojan M; Mitrić, Miodrag; Lačnjevac, Uroš; Bajat, Jelena B.

(Springer, New York, 2013)

TY  - JOUR
AU  - Bucko, Mihael M
AU  - Rogan, Jelena
AU  - Jokic, Bojan M
AU  - Mitrić, Miodrag
AU  - Lačnjevac, Uroš
AU  - Bajat, Jelena B.
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/666
AB  - The Zn-Mn alloy electrodeposition on a steel electrode in chloride electrolyte was investigated with the aim of obtaining deposits with as high as possible Mn percent. It was found that the deposition current density and concentration of Mn2+ ion in the chloride electrolyte significantly affect the Mn content in the alloy coating as well as the coating surface morphology. There was a transition from dendritic and spongy to smooth, bright, and amorphous structure of Zn-Mn deposits, when some critical deposition current density was reached, probably due to the metal oxyhydroxide inclusion in the coatings. Several plating additives were tested in order to decrease the hydroxide content and to improve surface appearance of the deposits. The 4-hydroxy-benzaldehyde was found to decrease oxygen and increase Mn percent in the coatings, and to significantly improve their surface morphology.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte
EP  - 1419
IS  - 5
SP  - 1409
VL  - 17
DO  - 10.1007/s10008-013-2004-8
ER  - 
@article{
author = "Bucko, Mihael M and Rogan, Jelena and Jokic, Bojan M and Mitrić, Miodrag and Lačnjevac, Uroš and Bajat, Jelena B.",
year = "2013",
abstract = "The Zn-Mn alloy electrodeposition on a steel electrode in chloride electrolyte was investigated with the aim of obtaining deposits with as high as possible Mn percent. It was found that the deposition current density and concentration of Mn2+ ion in the chloride electrolyte significantly affect the Mn content in the alloy coating as well as the coating surface morphology. There was a transition from dendritic and spongy to smooth, bright, and amorphous structure of Zn-Mn deposits, when some critical deposition current density was reached, probably due to the metal oxyhydroxide inclusion in the coatings. Several plating additives were tested in order to decrease the hydroxide content and to improve surface appearance of the deposits. The 4-hydroxy-benzaldehyde was found to decrease oxygen and increase Mn percent in the coatings, and to significantly improve their surface morphology.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte",
pages = "1419-1409",
number = "5",
volume = "17",
doi = "10.1007/s10008-013-2004-8"
}
Bucko, M. M., Rogan, J., Jokic, B. M., Mitrić, M., Lačnjevac, U.,& Bajat, J. B.. (2013). Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte. in Journal of Solid State Electrochemistry
Springer, New York., 17(5), 1409-1419.
https://doi.org/10.1007/s10008-013-2004-8
Bucko MM, Rogan J, Jokic BM, Mitrić M, Lačnjevac U, Bajat JB. Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte. in Journal of Solid State Electrochemistry. 2013;17(5):1409-1419.
doi:10.1007/s10008-013-2004-8 .
Bucko, Mihael M, Rogan, Jelena, Jokic, Bojan M, Mitrić, Miodrag, Lačnjevac, Uroš, Bajat, Jelena B., "Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte" in Journal of Solid State Electrochemistry, 17, no. 5 (2013):1409-1419,
https://doi.org/10.1007/s10008-013-2004-8 . .
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