TY  - JOUR
AU  - Nikolić, Vesna
AU  - Kamberović, Željko
AU  - Andić, Zoran
AU  - Korać, Marija
AU  - Sokić, Miroslav
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/292
AB  - This paper explores the possibility of synthesising catalyst supports with improved properties. Alumina foams were produced with the polymer replication technique. Representative high- and low-temperature sintering ceramics were selected. Suitable suspension amounts, the clay addition and sintering temperature were determined. A lower sintering temperature was used for an economic enhancement of the process. The sintering was conducted at the temperatures from 1573 K to 1773 K for 60 min. A comparative analysis of the studied systems shows that the best compressive strength of 6.2 MPa was achieved with the system based on the alpha-Al2O3-25 clay (mass fractions, w/%), polyester foam with 10 PPI, sintered at 1673 K.
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Synthesis of alpha-al2o3 based foams with improved properties as catalyst carriers
EP  - 50
IS  - 1
SP  - 45
VL  - 48
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2562
UR  - conv_1042
ER  - 

@article{
author = "Nikolić, Vesna and Kamberović, Željko and Andić, Zoran and Korać, Marija and Sokić, Miroslav",
year = "2014",
abstract = "This paper explores the possibility of synthesising catalyst supports with improved properties. Alumina foams were produced with the polymer replication technique. Representative high- and low-temperature sintering ceramics were selected. Suitable suspension amounts, the clay addition and sintering temperature were determined. A lower sintering temperature was used for an economic enhancement of the process. The sintering was conducted at the temperatures from 1573 K to 1773 K for 60 min. A comparative analysis of the studied systems shows that the best compressive strength of 6.2 MPa was achieved with the system based on the alpha-Al2O3-25 clay (mass fractions, w/%), polyester foam with 10 PPI, sintered at 1673 K.",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Synthesis of alpha-al2o3 based foams with improved properties as catalyst carriers",
pages = "50-45",
number = "1",
volume = "48",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2562, conv_1042"
}

Nikolić, V., Kamberović, Ž., Andić, Z., Korać, M.,& Sokić, M.. (2014). Synthesis of alpha-al2o3 based foams with improved properties as catalyst carriers. in Materiali in Tehnologije
Institute of Metals and Technology., 48(1), 45-50.
https://hdl.handle.net/21.15107/rcub_technorep_2562

Nikolić V, Kamberović Ž, Andić Z, Korać M, Sokić M. Synthesis of alpha-al2o3 based foams with improved properties as catalyst carriers. in Materiali in Tehnologije. 2014;48(1):45-50.
https://hdl.handle.net/21.15107/rcub_technorep_2562 .

Nikolić, Vesna, Kamberović, Željko, Andić, Zoran, Korać, Marija, Sokić, Miroslav, "Synthesis of alpha-al2o3 based foams with improved properties as catalyst carriers" in Materiali in Tehnologije, 48, no. 1 (2014):45-50,
https://hdl.handle.net/21.15107/rcub_technorep_2562 .

TY  - JOUR
AU  - Nikolić, Vesna
AU  - Kamberović, Željko
AU  - Andić, Zoran
AU  - Korać, Marija
AU  - Sokić, Miroslav
AU  - Maksimović, Vesna
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/322
AB  - A method of synthesizing Ni-based catalysts supported on alpha-Al2O3-based foams was developed. The foams were impregnated with aqueous solutions of metal chlorides under an air atmosphere using an aerosol route. Separate procedures involved calcination to form oxides and drying to obtain chlorides on the foam surface. The synthesized samples were subsequently reduced with hydrogen. With respect to the Ni/Al2O3 catalysts, the chloride reduction route enabled the formation of a Ni coating without agglomerates or cracks. Further research included catalyst modification by the addition of Pd, Cu, and Fe. The influences of the additives on the degree of reduction and on the low-temperature reduction effectiveness (533 and 633 K) were examined and compared for the catalysts obtained from oxides and chlorides. Greater degrees of reduction were achieved with chlorides, whereas Pd was the most effective modifier among those investigated. The reduction process was nearly complete at 533 K in the sample that contained 0.1wt% Pd. A lower reduction temperature was utilized, and the calcination step was avoided, which may enhance the economical and technological aspects of the developed catalyst production method.
PB  - Springer, New York
T2  - International Journal of Minerals Metallurgy and Materials
T1  - Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams
EP  - 812
IS  - 8
SP  - 806
VL  - 21
DO  - 10.1007/s12613-014-0974-x
UR  - conv_698
ER  - 

@article{
author = "Nikolić, Vesna and Kamberović, Željko and Andić, Zoran and Korać, Marija and Sokić, Miroslav and Maksimović, Vesna",
year = "2014",
abstract = "A method of synthesizing Ni-based catalysts supported on alpha-Al2O3-based foams was developed. The foams were impregnated with aqueous solutions of metal chlorides under an air atmosphere using an aerosol route. Separate procedures involved calcination to form oxides and drying to obtain chlorides on the foam surface. The synthesized samples were subsequently reduced with hydrogen. With respect to the Ni/Al2O3 catalysts, the chloride reduction route enabled the formation of a Ni coating without agglomerates or cracks. Further research included catalyst modification by the addition of Pd, Cu, and Fe. The influences of the additives on the degree of reduction and on the low-temperature reduction effectiveness (533 and 633 K) were examined and compared for the catalysts obtained from oxides and chlorides. Greater degrees of reduction were achieved with chlorides, whereas Pd was the most effective modifier among those investigated. The reduction process was nearly complete at 533 K in the sample that contained 0.1wt% Pd. A lower reduction temperature was utilized, and the calcination step was avoided, which may enhance the economical and technological aspects of the developed catalyst production method.",
publisher = "Springer, New York",
journal = "International Journal of Minerals Metallurgy and Materials",
title = "Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams",
pages = "812-806",
number = "8",
volume = "21",
doi = "10.1007/s12613-014-0974-x",
url = "conv_698"
}

Nikolić, V., Kamberović, Ž., Andić, Z., Korać, M., Sokić, M.,& Maksimović, V.. (2014). Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams. in International Journal of Minerals Metallurgy and Materials
Springer, New York., 21(8), 806-812.
https://doi.org/10.1007/s12613-014-0974-x
conv_698

Nikolić V, Kamberović Ž, Andić Z, Korać M, Sokić M, Maksimović V. Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams. in International Journal of Minerals Metallurgy and Materials. 2014;21(8):806-812.
doi:10.1007/s12613-014-0974-x
conv_698 .

Nikolić, Vesna, Kamberović, Željko, Andić, Zoran, Korać, Marija, Sokić, Miroslav, Maksimović, Vesna, "Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams" in International Journal of Minerals Metallurgy and Materials, 21, no. 8 (2014):806-812,
https://doi.org/10.1007/s12613-014-0974-x .,
conv_698 .

TY  - JOUR
AU  - Kamberović, Željko
AU  - Sokić, Miroslav
AU  - Matković, Vladislav
AU  - Andić, Zoran
AU  - Korać, Marija
AU  - Nikolić, Vesna
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/229
AB  - Catalysts based on nickel, as active component, exhibit suitable properties in various heterogeneous catalysis processes; however, they quickly deactivate due to deposits formation during exploitation and sintering at elevated temperatures. Considering that catalysts with several catalytic components possess enhanced catalytic properties, in present study the influence of temperature, time and additives (PdCl2, FeCl2 and CuCl2) on the reduction degree of nickel(II)-chloride by hydrogen have been investigated. The objectives of the study were selection of an appropriate catalytic activity modifier and development of a new synthesis method for nanocomposite catalysts production, which are characterized by enhanced properties compared to the commercial Ni/Al2O3 catalysts. Obtained experimental results clearly indicate that the best effect was achieved with addition of 0.1 wt. % PdCl2, whereby NiCl2, reduction degree was 58.16% at 653 K and Pd significantly increased the reduction rate. According to the obtained results., new technological synthesis method of nanocomposite Ni-Pd/Al2O3 catalysis was proposed, where Ni and Pd. as catalytically active components, are homogeneously dispersed in monolithic Al2O3 based ceramic foam.
PB  - Editura Stiintifica Fmr, Bucharest
T2  - Metalurgia International
T1  - Effects of additives on nickel (ii)-chloride hydrogen reduction for production of nanocomposite catalysts
EP  - 41
IS  - 5
SP  - 37
VL  - 17
UR  - conv_494
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1996
ER  - 

@article{
author = "Kamberović, Željko and Sokić, Miroslav and Matković, Vladislav and Andić, Zoran and Korać, Marija and Nikolić, Vesna",
year = "2012",
abstract = "Catalysts based on nickel, as active component, exhibit suitable properties in various heterogeneous catalysis processes; however, they quickly deactivate due to deposits formation during exploitation and sintering at elevated temperatures. Considering that catalysts with several catalytic components possess enhanced catalytic properties, in present study the influence of temperature, time and additives (PdCl2, FeCl2 and CuCl2) on the reduction degree of nickel(II)-chloride by hydrogen have been investigated. The objectives of the study were selection of an appropriate catalytic activity modifier and development of a new synthesis method for nanocomposite catalysts production, which are characterized by enhanced properties compared to the commercial Ni/Al2O3 catalysts. Obtained experimental results clearly indicate that the best effect was achieved with addition of 0.1 wt. % PdCl2, whereby NiCl2, reduction degree was 58.16% at 653 K and Pd significantly increased the reduction rate. According to the obtained results., new technological synthesis method of nanocomposite Ni-Pd/Al2O3 catalysis was proposed, where Ni and Pd. as catalytically active components, are homogeneously dispersed in monolithic Al2O3 based ceramic foam.",
publisher = "Editura Stiintifica Fmr, Bucharest",
journal = "Metalurgia International",
title = "Effects of additives on nickel (ii)-chloride hydrogen reduction for production of nanocomposite catalysts",
pages = "41-37",
number = "5",
volume = "17",
url = "conv_494, https://hdl.handle.net/21.15107/rcub_technorep_1996"
}

Kamberović, Ž., Sokić, M., Matković, V., Andić, Z., Korać, M.,& Nikolić, V.. (2012). Effects of additives on nickel (ii)-chloride hydrogen reduction for production of nanocomposite catalysts. in Metalurgia International
Editura Stiintifica Fmr, Bucharest., 17(5), 37-41.
conv_494

Kamberović Ž, Sokić M, Matković V, Andić Z, Korać M, Nikolić V. Effects of additives on nickel (ii)-chloride hydrogen reduction for production of nanocomposite catalysts. in Metalurgia International. 2012;17(5):37-41.
conv_494 .

Kamberović, Željko, Sokić, Miroslav, Matković, Vladislav, Andić, Zoran, Korać, Marija, Nikolić, Vesna, "Effects of additives on nickel (ii)-chloride hydrogen reduction for production of nanocomposite catalysts" in Metalurgia International, 17, no. 5 (2012):37-41,
conv_494 .