TY  - JOUR
AU  - Ćirić-Marjanović, Gordana
AU  - Holclajtner-Antunović, Ivanka
AU  - Mentus, Slavko V.
AU  - Bajuk-Bogdanović, Danica
AU  - Jesic, Dragana
AU  - Manojlović, Dragan D.
AU  - Trifunović, Snežana S.
AU  - Stejskal, Jaroslav
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1096
AB  - Polyaniline (PANI) micro/nanostructures were synthesized by the external-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic media (pH 5.4-5.9). The effect of the initial weight ratio of WPA to aniline on molecular structure, morphology, and physicochemical properties of polyaniline 12-tungstophosphate (PANI-WPA) was investigated by FTIR, Raman and inductively coupled plasma optical emission (ICP-OES) spectroscopies, elemental analysis, X-ray powder diffraction (XRPD), scanning and transmission electron microscopies (SEM and TEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and conductivity measurements. The morphological change of polymerization products during a single polymerization process, from non-conducting submicro-/microspherical oligoaniline intermediates to semiconducting PANI-WPA consisted of self-assembled nanotubes and/or nanorods co-existing with submicro-/microspheres, has been revealed by SEM and TEM. The average diameter of nanorods in PANI-WPA samples decreased with increasing the initial WPA/aniline weight ratio. The incorporation of 12-tungstophosphate counter-ions into PANI matrix has been proved by FTIR. Raman and ICP-OES spectroscopies, TGA and DTA analysis. Electrical conductivity of PANI-WPA increased in the range (2.5-5.3) x 10(-3) S cm(-1) with the increase of the initial WPA/aniline weight ratio. The presence of branched structures and phenazine units besides the ordinary paramagnetic and diamagnetic emeraldine salt structural features in PANI-WPA was proved by FTIR and Raman spectroscopies. (C) 2010 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Synthetic Metals
T1  - Self-assembled polyaniline 12-tungstophosphate micro/nanostructures
VL  - 160
IS  - 13-14
SP  - 1463
EP  - 1473
DO  - 10.1016/j.synthmet.2010.04.025
ER  - 

@article{
author = "Ćirić-Marjanović, Gordana and Holclajtner-Antunović, Ivanka and Mentus, Slavko V. and Bajuk-Bogdanović, Danica and Jesic, Dragana and Manojlović, Dragan D. and Trifunović, Snežana S. and Stejskal, Jaroslav",
year = "2010",
abstract = "Polyaniline (PANI) micro/nanostructures were synthesized by the external-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic media (pH 5.4-5.9). The effect of the initial weight ratio of WPA to aniline on molecular structure, morphology, and physicochemical properties of polyaniline 12-tungstophosphate (PANI-WPA) was investigated by FTIR, Raman and inductively coupled plasma optical emission (ICP-OES) spectroscopies, elemental analysis, X-ray powder diffraction (XRPD), scanning and transmission electron microscopies (SEM and TEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and conductivity measurements. The morphological change of polymerization products during a single polymerization process, from non-conducting submicro-/microspherical oligoaniline intermediates to semiconducting PANI-WPA consisted of self-assembled nanotubes and/or nanorods co-existing with submicro-/microspheres, has been revealed by SEM and TEM. The average diameter of nanorods in PANI-WPA samples decreased with increasing the initial WPA/aniline weight ratio. The incorporation of 12-tungstophosphate counter-ions into PANI matrix has been proved by FTIR. Raman and ICP-OES spectroscopies, TGA and DTA analysis. Electrical conductivity of PANI-WPA increased in the range (2.5-5.3) x 10(-3) S cm(-1) with the increase of the initial WPA/aniline weight ratio. The presence of branched structures and phenazine units besides the ordinary paramagnetic and diamagnetic emeraldine salt structural features in PANI-WPA was proved by FTIR and Raman spectroscopies. (C) 2010 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Synthetic Metals",
title = "Self-assembled polyaniline 12-tungstophosphate micro/nanostructures",
volume = "160",
number = "13-14",
pages = "1463-1473",
doi = "10.1016/j.synthmet.2010.04.025"
}

Ćirić-Marjanović, G., Holclajtner-Antunović, I., Mentus, S. V., Bajuk-Bogdanović, D., Jesic, D., Manojlović, D. D., Trifunović, S. S.,& Stejskal, J.. (2010). Self-assembled polyaniline 12-tungstophosphate micro/nanostructures. in Synthetic Metals
Elsevier Science Sa, Lausanne., 160(13-14), 1463-1473.
https://doi.org/10.1016/j.synthmet.2010.04.025

Ćirić-Marjanović G, Holclajtner-Antunović I, Mentus SV, Bajuk-Bogdanović D, Jesic D, Manojlović DD, Trifunović SS, Stejskal J. Self-assembled polyaniline 12-tungstophosphate micro/nanostructures. in Synthetic Metals. 2010;160(13-14):1463-1473.
doi:10.1016/j.synthmet.2010.04.025 .

Ćirić-Marjanović, Gordana, Holclajtner-Antunović, Ivanka, Mentus, Slavko V., Bajuk-Bogdanović, Danica, Jesic, Dragana, Manojlović, Dragan D., Trifunović, Snežana S., Stejskal, Jaroslav, "Self-assembled polyaniline 12-tungstophosphate micro/nanostructures" in Synthetic Metals, 160, no. 13-14 (2010):1463-1473,
https://doi.org/10.1016/j.synthmet.2010.04.025 . .

TY  - JOUR
AU  - Sredic, Svjetlana
AU  - Davidovic, Milorad
AU  - Spasjevic-de-Bire, Anne
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija B.
AU  - Šegan, Dejan M.
AU  - Jovanović, Dušan
AU  - Polizos, George
AU  - Pissis, Polycarpos
PY  - 2008
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/968
AB  - Our previous experiences with incorporation of polyoxometalates (POMs) ill different substrates have been very successful, because new nanocomposites with better conductive, catalytical and biochemical characteristics have been obtained. The results of intercalation of different mass% of ammonium decavanadate (ADV) in Al-pillared interlayered clays (Al-PILCs) are presented. The Al-PILCs were prepared using natural raw material, bentonite, containing a high percentage of montmorillonite (MM). Synthesis of ADV has been described in a previous paper. The structure of ADV hexahydrate was determined at low temperature, 100 K. A kappa refinement was performed to estimate the atomic charges. A sol-gel procedure was applied to obtain Al-PILCs composite intercalated with ADV hexahydrate (from 2 to 5 mass% of ADV). Structure and morphological properties of the new material, a nanocomposite of Al-PILCs-ADV, were investigated by X-ray powder diffraction (XRPD) and atomic force microscopy (AFM). To understand better how ADV is incorporated in the MM substrate, specific surface areas, pore structures and pore distributions were determined. Electrical and dielectric properties of the new materials were investigated by thermally stimulated depolarization currents (TSDCs) and broadband dielectric relaxation spectroscopy (DRS). The electrical conductivity of the nanocomposite was found to increase, in relation to MM, by intercalating with a small amount of ADV. (C) 2008 Published by Elsevier Ltd.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Journal of Physics and Chemistry of Solids
T1  - Inorganic-inorganic nanocomposite: Surface and conductive properties
VL  - 69
IS  - 8
SP  - 1883
EP  - 1890
DO  - 10.1016/j.jpcs.2007.12.023
ER  - 

@article{
author = "Sredic, Svjetlana and Davidovic, Milorad and Spasjevic-de-Bire, Anne and Mioč, Ubavka B. and Todorović, Marija B. and Šegan, Dejan M. and Jovanović, Dušan and Polizos, George and Pissis, Polycarpos",
year = "2008",
abstract = "Our previous experiences with incorporation of polyoxometalates (POMs) ill different substrates have been very successful, because new nanocomposites with better conductive, catalytical and biochemical characteristics have been obtained. The results of intercalation of different mass% of ammonium decavanadate (ADV) in Al-pillared interlayered clays (Al-PILCs) are presented. The Al-PILCs were prepared using natural raw material, bentonite, containing a high percentage of montmorillonite (MM). Synthesis of ADV has been described in a previous paper. The structure of ADV hexahydrate was determined at low temperature, 100 K. A kappa refinement was performed to estimate the atomic charges. A sol-gel procedure was applied to obtain Al-PILCs composite intercalated with ADV hexahydrate (from 2 to 5 mass% of ADV). Structure and morphological properties of the new material, a nanocomposite of Al-PILCs-ADV, were investigated by X-ray powder diffraction (XRPD) and atomic force microscopy (AFM). To understand better how ADV is incorporated in the MM substrate, specific surface areas, pore structures and pore distributions were determined. Electrical and dielectric properties of the new materials were investigated by thermally stimulated depolarization currents (TSDCs) and broadband dielectric relaxation spectroscopy (DRS). The electrical conductivity of the nanocomposite was found to increase, in relation to MM, by intercalating with a small amount of ADV. (C) 2008 Published by Elsevier Ltd.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Journal of Physics and Chemistry of Solids",
title = "Inorganic-inorganic nanocomposite: Surface and conductive properties",
volume = "69",
number = "8",
pages = "1883-1890",
doi = "10.1016/j.jpcs.2007.12.023"
}

Sredic, S., Davidovic, M., Spasjevic-de-Bire, A., Mioč, U. B., Todorović, M. B., Šegan, D. M., Jovanović, D., Polizos, G.,& Pissis, P.. (2008). Inorganic-inorganic nanocomposite: Surface and conductive properties. in Journal of Physics and Chemistry of Solids
Pergamon-Elsevier Science Ltd, Oxford., 69(8), 1883-1890.
https://doi.org/10.1016/j.jpcs.2007.12.023

Sredic S, Davidovic M, Spasjevic-de-Bire A, Mioč UB, Todorović MB, Šegan DM, Jovanović D, Polizos G, Pissis P. Inorganic-inorganic nanocomposite: Surface and conductive properties. in Journal of Physics and Chemistry of Solids. 2008;69(8):1883-1890.
doi:10.1016/j.jpcs.2007.12.023 .

Sredic, Svjetlana, Davidovic, Milorad, Spasjevic-de-Bire, Anne, Mioč, Ubavka B., Todorović, Marija B., Šegan, Dejan M., Jovanović, Dušan, Polizos, George, Pissis, Polycarpos, "Inorganic-inorganic nanocomposite: Surface and conductive properties" in Journal of Physics and Chemistry of Solids, 69, no. 8 (2008):1883-1890,
https://doi.org/10.1016/j.jpcs.2007.12.023 . .

TY  - JOUR
AU  - Blanusa, J.
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Mazzerolles, L.
AU  - Mentus, Slavko V.
AU  - Spasojević, Vojislav
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/893
AB  - New synthesis routine based on thermal decomposition of an erbium complex with acetylacetonato ligand (2, 4-pentadione) was used to prepare nanosized Er2O3 with a particle size of 5 nm and a narrow size distribution. For the sake of comparison, the ultrafine-Er2O3 powder was prepared by precipitation and subsequent sintering. The magnetic susceptibility of nanosized Er2O3 indicates the antiferromagnetic  lt - gt  paramagnetic transition at 1.8 K or lower, while in ultrafine such as in a bulk counterpart the transition was observed at noticeably higher temperature of similar to 3.4 K. The decrease in Neel temperature, observed in the case of nanosized Er2O3 sample, was attributed to both particle surface and core effects. (c) 2007 Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Solid State Communications
T1  - Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex
VL  - 144
IS  - 7-8
SP  - 310
EP  - 314
DO  - 10.1016/j.ssc.2007.09.003
ER  - 

@article{
author = "Blanusa, J. and Antić, Bratislav and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Mazzerolles, L. and Mentus, Slavko V. and Spasojević, Vojislav",
year = "2007",
abstract = "New synthesis routine based on thermal decomposition of an erbium complex with acetylacetonato ligand (2, 4-pentadione) was used to prepare nanosized Er2O3 with a particle size of 5 nm and a narrow size distribution. For the sake of comparison, the ultrafine-Er2O3 powder was prepared by precipitation and subsequent sintering. The magnetic susceptibility of nanosized Er2O3 indicates the antiferromagnetic  lt - gt  paramagnetic transition at 1.8 K or lower, while in ultrafine such as in a bulk counterpart the transition was observed at noticeably higher temperature of similar to 3.4 K. The decrease in Neel temperature, observed in the case of nanosized Er2O3 sample, was attributed to both particle surface and core effects. (c) 2007 Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Solid State Communications",
title = "Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex",
volume = "144",
number = "7-8",
pages = "310-314",
doi = "10.1016/j.ssc.2007.09.003"
}

Blanusa, J., Antić, B., Kremenović, A., Nikolić, A. S., Mazzerolles, L., Mentus, S. V.,& Spasojević, V.. (2007). Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex. in Solid State Communications
Pergamon-Elsevier Science Ltd, Oxford., 144(7-8), 310-314.
https://doi.org/10.1016/j.ssc.2007.09.003

Blanusa J, Antić B, Kremenović A, Nikolić AS, Mazzerolles L, Mentus SV, Spasojević V. Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex. in Solid State Communications. 2007;144(7-8):310-314.
doi:10.1016/j.ssc.2007.09.003 .

Blanusa, J., Antić, Bratislav, Kremenović, Aleksandar, Nikolić, Aleksandar S., Mazzerolles, L., Mentus, Slavko V., Spasojević, Vojislav, "Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex" in Solid State Communications, 144, no. 7-8 (2007):310-314,
https://doi.org/10.1016/j.ssc.2007.09.003 . .