TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Rakočević, Lazar
AU  - Pavlović, Vera P.
AU  - Ammar-Merah, Souad
AU  - Vujančević, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16331
AB  - Mixed spinel ferrites MgxNi1-xFe2O4 were synthesized via sol-gel combustion synthesis with citric acid as fuel, followed by calcination at 700 °C for 3 hours. Obtained powders were characterized via X-ray diffraction analysis (XRD), X-ray photoelectron (XPS), FTIR and Raman spectroscopy and FESEM microscopy. Elemental composition was examined via energy dispersive spectroscopy (EDS). Humidity sensing properties were tested by measuring AC impedance in a climactic chamber at 25 °C and in the relative humidity range of 40–90%. Temperature sensing properties were tested by measuring DC resistance at 40% RH in the temperature range 40–90 °C. Synthesized powders were proven to be pure spinel Fd 3m phase with spherical, slightly agglomerated particles. Substitution of Mg with Ni results in structural changes such as a change in inversion parameter and particle agglomeration, which influences sensing properties of the material. Results show that the sensing properties of magnesium ferrite, which is already a well-established NTC sensor, can be improved by incorporating 10% of nickel in the spinel lattice structure. Mg0.9Ni0.1Fe2O4 exhibited higher temperature sensitivity and higher sensitivity towards humidity compared to MgFe2O4, while further substitution of Mg with Ni resulted in the decline of sensing properties, increase in particle size and agglomeration degree.
PB  - University of Novi Sad, Faculty of Technology, Novi Sad, Serbia
C3  - CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, Programme and Book of Abstracts; October 11-14, 2023, Novi Sad, Serbia
T1  - Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7269
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Ž. and Rakočević, Lazar and Pavlović, Vera P. and Ammar-Merah, Souad and Vujančević, Jelena and Nikolić, Maria Vesna",
year = "2023",
abstract = "Mixed spinel ferrites MgxNi1-xFe2O4 were synthesized via sol-gel combustion synthesis with citric acid as fuel, followed by calcination at 700 °C for 3 hours. Obtained powders were characterized via X-ray diffraction analysis (XRD), X-ray photoelectron (XPS), FTIR and Raman spectroscopy and FESEM microscopy. Elemental composition was examined via energy dispersive spectroscopy (EDS). Humidity sensing properties were tested by measuring AC impedance in a climactic chamber at 25 °C and in the relative humidity range of 40–90%. Temperature sensing properties were tested by measuring DC resistance at 40% RH in the temperature range 40–90 °C. Synthesized powders were proven to be pure spinel Fd 3m phase with spherical, slightly agglomerated particles. Substitution of Mg with Ni results in structural changes such as a change in inversion parameter and particle agglomeration, which influences sensing properties of the material. Results show that the sensing properties of magnesium ferrite, which is already a well-established NTC sensor, can be improved by incorporating 10% of nickel in the spinel lattice structure. Mg0.9Ni0.1Fe2O4 exhibited higher temperature sensitivity and higher sensitivity towards humidity compared to MgFe2O4, while further substitution of Mg with Ni resulted in the decline of sensing properties, increase in particle size and agglomeration degree.",
publisher = "University of Novi Sad, Faculty of Technology, Novi Sad, Serbia",
journal = "CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, Programme and Book of Abstracts; October 11-14, 2023, Novi Sad, Serbia",
title = "Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7269"
}

Dojčinović, M., Vasiljević, Z. Ž., Rakočević, L., Pavlović, V. P., Ammar-Merah, S., Vujančević, J.,& Nikolić, M. V.. (2023). Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, Programme and Book of Abstracts; October 11-14, 2023, Novi Sad, Serbia
University of Novi Sad, Faculty of Technology, Novi Sad, Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_7269

Dojčinović M, Vasiljević ZŽ, Rakočević L, Pavlović VP, Ammar-Merah S, Vujančević J, Nikolić MV. Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4. in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, Programme and Book of Abstracts; October 11-14, 2023, Novi Sad, Serbia. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7269 .

Dojčinović, Milena, Vasiljević, Zorka Ž., Rakočević, Lazar, Pavlović, Vera P., Ammar-Merah, Souad, Vujančević, Jelena, Nikolić, Maria Vesna, "Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4" in CYSC-2023 : 15th EcerS Conference for Young Scientists in Ceramics, Programme and Book of Abstracts; October 11-14, 2023, Novi Sad, Serbia (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7269 .

TY  - JOUR
AU  - Dojčinović, Milena P.
AU  - Vasiljević, Zorka Ž.
AU  - Rakočević, Lazar
AU  - Pavlović, Vera P.
AU  - Ammar-Merah, Souad
AU  - Vujančević, Jelena D.
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14025
AB  - Temperature- and humidity-sensing properties were evaluated of NixMg1-x spinel ferrites (0 ≤ x ≤ 1) synthesized by a sol-gel combustion method using citric acid as fuel and nitrate ions as oxidizing agents. After the exothermic reaction, amorphous powders were calcined at 700 °C followed by characterization with XRD, FTIR, XPS, EDS and Raman spectroscopy and FESEM microscopy. Synthesized powders were tested as humidity- and temperature-sensing materials in the form of thick films on interdigitated electrodes on alumina substrate in a climatic chamber. The physicochemical investigation of synthesized materials revealed a cubic spinel Fd3¯m phase, nanosized but agglomerated particles with a partially to completely inverse spinel structure with increasing Ni content. Ni0.1Mg0.9Fe2O4 showed the highest material constant (B30,90) value of 3747 K and temperature sensitivity (α) of −4.08%/K compared to pure magnesium ferrite (B30,90 value of 3426 K and α of −3.73%/K) and the highest average sensitivity towards humidity of 922 kΩ/%RH in the relative humidity (RH) range of 40–90% at the working temperature of 25 °C.
PB  - Basel : MDPI AG
T2  - Chemosensors
T1  - Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites
SP  - 34
VL  - 11
IS  - 1
DO  - 10.3390/chemosensors11010034
UR  - https://hdl.handle.net/21.15107/rcub_dais_14025
ER  - 

@article{
author = "Dojčinović, Milena P. and Vasiljević, Zorka Ž. and Rakočević, Lazar and Pavlović, Vera P. and Ammar-Merah, Souad and Vujančević, Jelena D. and Nikolić, Maria Vesna",
year = "2023",
abstract = "Temperature- and humidity-sensing properties were evaluated of NixMg1-x spinel ferrites (0 ≤ x ≤ 1) synthesized by a sol-gel combustion method using citric acid as fuel and nitrate ions as oxidizing agents. After the exothermic reaction, amorphous powders were calcined at 700 °C followed by characterization with XRD, FTIR, XPS, EDS and Raman spectroscopy and FESEM microscopy. Synthesized powders were tested as humidity- and temperature-sensing materials in the form of thick films on interdigitated electrodes on alumina substrate in a climatic chamber. The physicochemical investigation of synthesized materials revealed a cubic spinel Fd3¯m phase, nanosized but agglomerated particles with a partially to completely inverse spinel structure with increasing Ni content. Ni0.1Mg0.9Fe2O4 showed the highest material constant (B30,90) value of 3747 K and temperature sensitivity (α) of −4.08%/K compared to pure magnesium ferrite (B30,90 value of 3426 K and α of −3.73%/K) and the highest average sensitivity towards humidity of 922 kΩ/%RH in the relative humidity (RH) range of 40–90% at the working temperature of 25 °C.",
publisher = "Basel : MDPI AG",
journal = "Chemosensors",
title = "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites",
pages = "34",
volume = "11",
number = "1",
doi = "10.3390/chemosensors11010034",
url = "https://hdl.handle.net/21.15107/rcub_dais_14025"
}

Dojčinović, M. P., Vasiljević, Z. Ž., Rakočević, L., Pavlović, V. P., Ammar-Merah, S., Vujančević, J. D.,& Nikolić, M. V.. (2023). Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors
Basel : MDPI AG., 11(1), 34.
https://doi.org/10.3390/chemosensors11010034
https://hdl.handle.net/21.15107/rcub_dais_14025

Dojčinović MP, Vasiljević ZŽ, Rakočević L, Pavlović VP, Ammar-Merah S, Vujančević JD, Nikolić MV. Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors. 2023;11(1):34.
doi:10.3390/chemosensors11010034
https://hdl.handle.net/21.15107/rcub_dais_14025 .

Dojčinović, Milena P., Vasiljević, Zorka Ž., Rakočević, Lazar, Pavlović, Vera P., Ammar-Merah, Souad, Vujančević, Jelena D., Nikolić, Maria Vesna, "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites" in Chemosensors, 11, no. 1 (2023):34,
https://doi.org/10.3390/chemosensors11010034 .,
https://hdl.handle.net/21.15107/rcub_dais_14025 .