Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites
2023
Authors
Dojčinović, MilenaVasiljević, Zorka Ž.
Rakočević, Lazar
Pavlović, Vera P.
Ammar-Merah, Souad
Vujančević, Jelena
Nikolić, Maria Vesna
Article (Published version)
Metadata
Show full item recordAbstract
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 Fd3m 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 se...nsitivity towards humidity of 922 kΩ/%RH in the relative humidity (RH) range of 40–90% at the working temperature of 25 °C.
Keywords:
nickel / magnesium / spinel / ferrite / humidity / temperature / sensing / structure / morphologySource:
Chemosensors, 2023, 11, 1, 34-Publisher:
- MDPI (Basel, Switzerland)
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-MESTD-inst-2020-200053)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-MESTD-inst-2020-200175)
DOI: https://doi.org/10.3390/chemosensors11010034
ISSN: 2227-9040
Scopus: 2-s2.0-85146745063
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Institution/Community
Mašinski fakultetTY - JOUR 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://machinery.mas.bg.ac.rs/handle/123456789/3982 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 Fd3m 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 - MDPI (Basel, Switzerland) T2 - Chemosensors T1 - Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites IS - 1 SP - 34 VL - 11 DO - https://doi.org/10.3390/chemosensors11010034 ER -
@article{ 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 = "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 Fd3m 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 = "MDPI (Basel, Switzerland)", journal = "Chemosensors", title = "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites", number = "1", pages = "34", volume = "11", doi = "https://doi.org/10.3390/chemosensors11010034" }
Dojčinović, M., Vasiljević, Z. Ž., Rakočević, L., Pavlović, V. P., Ammar-Merah, S., Vujančević, J.,& Nikolić, M. V.. (2023). Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors MDPI (Basel, Switzerland)., 11(1), 34. https://doi.org/https://doi.org/10.3390/chemosensors11010034
Dojčinović M, Vasiljević ZŽ, Rakočević L, Pavlović VP, Ammar-Merah S, Vujančević J, Nikolić MV. Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors. 2023;11(1):34. doi:https://doi.org/10.3390/chemosensors11010034 .
Dojčinović, Milena , Vasiljević, Zorka Ž., Rakočević, Lazar, Pavlović, Vera P., Ammar-Merah, Souad, Vujančević, Jelena , Nikolić, Maria Vesna, "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites" in Chemosensors, 11, no. 1 (2023):34, https://doi.org/https://doi.org/10.3390/chemosensors11010034 . .