TY  - JOUR
AU  - Cajkovski, T
AU  - Davidović, Miloš D.
AU  - Pissis, P
AU  - Polizos, G
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Sredic, S
AU  - Mioč, Ubavka B.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6548
AB  - Aluminum-pillared montmorillonite (PILC MM) was doped with 12-tungstophosphoric acid hexahydrate (WPA-6) by the Solgel method. Using broad band dielectric relaxation spectroscopy (DRS), electrical properties of the obtained material were investigated. Thermally stimulated depolarization current technique was also used due to its high sensitivity and high resolving power. It has been established that pillared montmorillonite doped with WPA-6 (H3PW12O40 center dot 6H(2)O) shows conductivity higher than that of the pure components. Phase transition, which in WPA-6 takes place above 50 degrees C, in doped montmorillonite occurs above 70 degrees C. The conductivity activation energy is 0.27 eV. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Journal of Non-crystalline Solids
T1  - Dielectric relaxation spectroscopy of montmorillonite doped with 12-tungstophosphoric acid
VL  - 351
IS  - 33-36
SP  - 2842
EP  - 2848
DO  - 10.1016/j.jnoncrysol.2005.05.032
ER  - 

@article{
author = "Cajkovski, T and Davidović, Miloš D. and Pissis, P and Polizos, G and Cajkovski, D and Likar-Smiljanic, V and Sredic, S and Mioč, Ubavka B.",
year = "2005",
abstract = "Aluminum-pillared montmorillonite (PILC MM) was doped with 12-tungstophosphoric acid hexahydrate (WPA-6) by the Solgel method. Using broad band dielectric relaxation spectroscopy (DRS), electrical properties of the obtained material were investigated. Thermally stimulated depolarization current technique was also used due to its high sensitivity and high resolving power. It has been established that pillared montmorillonite doped with WPA-6 (H3PW12O40 center dot 6H(2)O) shows conductivity higher than that of the pure components. Phase transition, which in WPA-6 takes place above 50 degrees C, in doped montmorillonite occurs above 70 degrees C. The conductivity activation energy is 0.27 eV. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Journal of Non-crystalline Solids",
title = "Dielectric relaxation spectroscopy of montmorillonite doped with 12-tungstophosphoric acid",
volume = "351",
number = "33-36",
pages = "2842-2848",
doi = "10.1016/j.jnoncrysol.2005.05.032"
}

Cajkovski, T., Davidović, M. D., Pissis, P., Polizos, G., Cajkovski, D., Likar-Smiljanic, V., Sredic, S.,& Mioč, U. B.. (2005). Dielectric relaxation spectroscopy of montmorillonite doped with 12-tungstophosphoric acid. in Journal of Non-crystalline Solids, 351(33-36), 2842-2848.
https://doi.org/10.1016/j.jnoncrysol.2005.05.032

Cajkovski T, Davidović MD, Pissis P, Polizos G, Cajkovski D, Likar-Smiljanic V, Sredic S, Mioč UB. Dielectric relaxation spectroscopy of montmorillonite doped with 12-tungstophosphoric acid. in Journal of Non-crystalline Solids. 2005;351(33-36):2842-2848.
doi:10.1016/j.jnoncrysol.2005.05.032 .

Cajkovski, T, Davidović, Miloš D., Pissis, P, Polizos, G, Cajkovski, D, Likar-Smiljanic, V, Sredic, S, Mioč, Ubavka B., "Dielectric relaxation spectroscopy of montmorillonite doped with 12-tungstophosphoric acid" in Journal of Non-crystalline Solids, 351, no. 33-36 (2005):2842-2848,
https://doi.org/10.1016/j.jnoncrysol.2005.05.032 . .

TY  - JOUR
AU  - Sredic, S
AU  - Cajkovski, T
AU  - Davidović, Miloš D.
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Marinović-Cincović, Milena
AU  - Mioč, Ubavka B.
AU  - Nedić, Zoran
AU  - Biljic, R
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6422
AB  - Bentonite a natural raw material from the Sipovo mining deposits (Republic of Srpska), which contains a high percentage of montmorillonite, was treated to obtain montmorillonite clay ready for further investigations. Al-pillared montmorillonite was doped with 12-tungstophosphoric acid (WPA) by the sol-gel method. Substantial increase in proton conductivity of this new material was achieved. Different physicochemical methods were used to characterize new materials such as X-ray powder diffraction (XRD), thermogravimetric (TG) analysis, porosity measurements, scanning electron microscopy (SEM), and infrared measurements (IR). Impedance spectroscopy technique was applied in order to study the proton conductivity and its dependence on the frequency and tungstophosphoric acid concentration.
T2  - Materials Science Forum
T1  - Physicochemical properties of Al-pillared montmorillonite doped with 12-tungstophosphoric acid
VL  - 453-454
SP  - 157
EP  - 162
DO  - 10.4028/www.scientific.net/MSF.453-454.157
ER  - 

@article{
author = "Sredic, S and Cajkovski, T and Davidović, Miloš D. and Cajkovski, D and Likar-Smiljanic, V and Marinović-Cincović, Milena and Mioč, Ubavka B. and Nedić, Zoran and Biljic, R",
year = "2004",
abstract = "Bentonite a natural raw material from the Sipovo mining deposits (Republic of Srpska), which contains a high percentage of montmorillonite, was treated to obtain montmorillonite clay ready for further investigations. Al-pillared montmorillonite was doped with 12-tungstophosphoric acid (WPA) by the sol-gel method. Substantial increase in proton conductivity of this new material was achieved. Different physicochemical methods were used to characterize new materials such as X-ray powder diffraction (XRD), thermogravimetric (TG) analysis, porosity measurements, scanning electron microscopy (SEM), and infrared measurements (IR). Impedance spectroscopy technique was applied in order to study the proton conductivity and its dependence on the frequency and tungstophosphoric acid concentration.",
journal = "Materials Science Forum",
title = "Physicochemical properties of Al-pillared montmorillonite doped with 12-tungstophosphoric acid",
volume = "453-454",
pages = "157-162",
doi = "10.4028/www.scientific.net/MSF.453-454.157"
}

Sredic, S., Cajkovski, T., Davidović, M. D., Cajkovski, D., Likar-Smiljanic, V., Marinović-Cincović, M., Mioč, U. B., Nedić, Z.,& Biljic, R.. (2004). Physicochemical properties of Al-pillared montmorillonite doped with 12-tungstophosphoric acid. in Materials Science Forum, 453-454, 157-162.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.157

Sredic S, Cajkovski T, Davidović MD, Cajkovski D, Likar-Smiljanic V, Marinović-Cincović M, Mioč UB, Nedić Z, Biljic R. Physicochemical properties of Al-pillared montmorillonite doped with 12-tungstophosphoric acid. in Materials Science Forum. 2004;453-454:157-162.
doi:10.4028/www.scientific.net/MSF.453-454.157 .

Sredic, S, Cajkovski, T, Davidović, Miloš D., Cajkovski, D, Likar-Smiljanic, V, Marinović-Cincović, Milena, Mioč, Ubavka B., Nedić, Zoran, Biljic, R, "Physicochemical properties of Al-pillared montmorillonite doped with 12-tungstophosphoric acid" in Materials Science Forum, 453-454 (2004):157-162,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.157 . .